IT Foundations Lesson 3 Hardware

You need to configure your mobile device for data synchronization. Which of these does NOT perform synchronization on the application level?

Near Field Communictions (NFC)

You need to replace the broken high performance drive in your computer. Since it is an early high performance drive, what spin speed would you expect it to have?

10,000rpm

A power supply unit that uses the ATX12V version 2 specification has what type of power connector?

24-pin motherboard adapter Most systems are now based on the ATX12V version 2 specification. This specification defines a 24-pin (2x12) P1 adapter to replace the 20-pin P1 (2x10) adapter. In the original ATX specification, the 20-pin P1 (2x10) adapter (also called the main connector) supplied power to the motherboard. The 4-pin (1x4) Molex connectors supply +12V and +5V power for peripheral devices housed within the system case such as older hard drives and expansion cards. 15-pin (1x15) SATA (Serial ATA) connectors supply +5V power for peripheral devices housed within the system case such as hard drives and optical drives.

When designing a Network Attached Storage (NAS) personal computer, which type of network card would you install for maximum performance?

A Gigabit NIC A Gigabit NIC card runs up to 10x faster than the standard Fast Ethernet NIC cards and would be the best choice for maximum network performance. Many of the SOHO (Small Office Home Office) Internet router appliances come with Fast Ethernet switch ports that only run at 100 Mbps. A 10 megabit interface card was the original standard for Ethernet. It is now considered slow and been replaced with 100 megabit or Gigabit hardware. The Trusted Platform Module (TPM) is a chip on the computer motherboard. TPM provides storage of digital certificates, keys, and hashed passwords.

If you build a Network Attached Storage (NAS) system, which hard drive technology would you use to ensure survivability of the stored information?

A RAID array RAID provides redundancy of stored data and is the best choice to ensure survivability of the data. The Parallel ATA (PATA) technology is the legacy technology replaced by SATA (Serial Advanced Technology Attachment). These slow drives would not be used in a gaming rig. The Trusted Platform Module (TPM) is a chip on the computer motherboard. TPM provides storage of digital certificates, keys, and hashed passwords. Solid state disks (SSD) uses a type of non-volatile memory technology called flash memory and are very fast but in themselves do not protect the stored data.

If you are building a high-end audio/video workstation, what hard drive technology would you use for mass storage?

A SSD hard drive

Mobile accounts can be linked to all of these EXCEPT what?

A Trusted Platform Module The Trusted Platform Module (TPM) is a chip on the computer motherboard. TPM provides storage of digital certificates, keys, and hashed passwords but does not interface with user accounts. Mobile accounts can also be linked to a cellphone number as a form of verification or for recovery purposes. An alternative email address is used by many mobile accounts for verification and recovery functions. A unique ID (either a username or an email address) is the primary way an account is linked to a user or account on a mobile device.

What type of connection on the back of a printer would use a Type B end?

A USB connection Some printers have a Universal Serial Bus (USB) Type B cable connection on the back of the printer. The Type B end of the cable goes to the printer while the Type A connector goes to the printer. Older printers used a data connection where the data is transmitted over one wire one bit at a time. This serial communication was replaced by the USB-type connection. Most modern printers now have an Ethernet port and an installed NIC card. This allows the printer to be connected directly to the network. Many modern printers have a wireless NIC card installed into the printer that allows for connecting to a wireless network. This allows wireless devices to print directly to the printer.

Which of these input devices scans patterns of parallel lines?

A barcode scanner

Which of these peripherals is a graphical output device?

A flat panel monitor

Which peripheral creates file data from a real-life object?

A flatbed scanner A scanner is a digital imaging device, designed to create computer file data from a real-life object. Typically, scanners handle flat objects, like documents, receipts, or photographs. A barcode scanner is a handheld or pen-shaped device designed to scan patterns of different sized parallel bars, typically representing a product number, such as an ISBN, EAN, or UPC. Graphics output is provided by some sort of display unit or monitor (such as a flat panel or CRT) plus a video card, which generates the signals to drive the monitor. A printer is a device that produces text and images from electronic data onto physical media such as paper, photo paper, and labels.

Which computer hardware component is the primary component of a Network Attached Storage (NAS) device?

A hard drive A Network Attached Storage (NAS) appliance is a hard drive with a cut-down server board, usually running some form of Linux that provides network access and various file sharing protocols. The Trusted Platform Module (TPM) is a chip on the computer motherboard. TPM provides storage of digital certificates, keys, and hashed passwords. A PC built for gaming is usually based around the latest high-end graphics adapter technology, not a NAS device. Gaming PCs and home theater PCs have surround sound audio and a high-definition sound card. Most NAS devices have built-in sound cards or no sound card at all.

Which part of a gaming system matches that of a home theater personal computer?

A high-definition sound card

If you want to build a graphic designer's workstation, which of these would you use for the computer?

A high-end video card

Which of these is the longest serving type of Human Interface Device (HID)?

A keyboard

Which Human Interface Device (HID) uses your finger to control the onscreen pointer?

A laptop touchpad

If you are designing a computer aided design (CAD) workstation, which of these would you install?

A large, fast hard drive A CAD workstation also needs a fast storage subsystem and would typically now be provisioned with Solid State Drives (SSD) rather than older hard disks. The Parallel ATA (PATA) technology is the legacy technology replaced by SATA (Serial Advanced Technology Attachment). These drives are much slower than modern drives. Enhanced Integrated Drive Electronics (EIDE) was one of the early hard drive connection standards but most modern computers use Serial ATA (SATA) or SSD technology drives. A CAD system needs the maximum amount of RAM the motherboard can handle to process the large complex files generated by the computation-intensive programs.

What type of device reads the data off of a credit or bank card when swiped?

A magnetic reader

Which of these devices would you find on both headsets and webcams?

A microphone

What type of peripheral produces physical media text and images from electronic data?

A printer

What type of connection is when data is transmitted over the cable one bit at a time between the printer and the computer?

A serial connection Older printers used a data connection where the data is transmitted over one wire one bit at a time. This serial communication was replaced by the USB-type connection. Most modern printers now have an Ethernet port and an installed NIC card. This allows the printer to be connected directly to the network. Many modern printers have a wireless NIC card installed into the printer that allows for connecting to a wireless network. This allows wireless devices to print directly to the printer. Some printers have a Universal Serial Bus (USB) Type B cable connection on the back of the printer. The Type B end of the cable goes to the printer while the Type A connector goes to the printer

Your client wants you to build a top-of-the-line gaming computer system. Which of these would you choose to put into such a system?

A set of specialized audio and video cards Gaming PCs will share some of the traits of a home theater PC such as having surround sound audio and a high quality display so the systems needs high-end video and audio cards. The processors are very highly utilized for considerable periods of time which means a gaming PC will generate more heat than most other types of computer. Many come with liquid cooling systems. Enhanced Integrated Drive Electronics (EIDE) was one of the early hard drive connection standards but most modern computers use Serial ATA (SATA) or SSD technology drives. A gaming system needs the maximum amount of RAM the motherboard can handle to process the large complex files generated by the video-intensive programs.

Which of these Human Interface Devices (HIDs) is a biometric authentication device?

A signature pad

Which of these is a peripheral device that allows you to use a digital certificate?

A smart card reader A smart card reader is typically a peripheral device that provides an interface to interact with a smart card. The microprocessor embedded in the smart card is used to store a digital certificate. The Trusted Platform Module (TPM) is a chip on the computer motherboard. TPM is a specification for hardware-based storage of digital certificates, keys, hashed passwords, and other user and platform identification information. AMD uses Pin Grid Array (PGA) form factor CPU chips, designed to fit in a Zero Insertion Force (ZIF) socket on the motherboard. Intel uses Land Grid Array (LGA) form factor CPUs. In LGA, the pins that connect the CPU and socket are located on the socket.

Which type of desktop has account stettings where each user is allocated its own private data storage?

A thick client A standard (thick) client might be configured with multiple user accounts. Each standard user account is allocated its own private data storage folders on the local machine. For a thin client, user accounts are created on the server rather than directly on the thin client and data is stored on the network server. CAM (Computer Aided Manufacturing) workstations control machine tools found in manufacturing environments and may use specialized controller cards and server-based connections. A gaming rig (or gaming computer) is a home PC and usually configured with a single user account rather than multiple accounts.

Which type of desktop system would you expect to have multiple local user accounts?

A thick client A standard (thick) client might be configured with multiple user accounts. Each standard user account is allocated its own private data storage folders on the local machine. For a thin client, user accounts are created on the server rather than directly on the thin client and data is stored on the network server. CAM (Computer Aided Manufacturing) workstations control machine tools found in manufacturing environments and may use specialized controller cards and server-based connections. A gaming rig (or gaming computer) is a home PC and usually configured with a single user account rather than multiple accounts.

Which Digital Light Processing device would you use at a presentation or meeting?

A video projector

A client needs you to build a computer used to verify changes to their company website. All changes must be tested on a number of platforms using different web browsers and operating systems. What type of workstation would you build?

A virtualization workstation A virtualization workstation has software that allows the user to switch from different operating systems and test any website changes quickly. This would be the best choice for a single computer to work with many OS's and web browsers. A thin client allows the user to access data on a server but has no access to local applications on the computer. These are typically used in server-based networks. CAD workstations are configured to support the needs of engineers, architects, and other design-driven job roles. An Audio/Video (A/V) workstation works with files, creates animations, or produces music.

What do you call a connection between a computer and a printer that uses a physical cable connection?

A wired connection A wired connection is using a physical cable (Ethernet, USB, serial) is used to connect a printer to a computer. Some printers have a Universal Serial Bus (USB) Type B cable connection on the back of the printer. The Type B end of the cable goes to the printer while the Type A connector goes to the printer. Older printers used a data connection where the data is transmitted over one wire one bit at a time. This serial communication was replaced by parallel cables and the USB-type connection. Most modern printers now have an Ethernet port and an installed NIC card. This allows the printer to be connected directly to the network and accessible by any networked computer.

What is used to measure the brightness of a projector?

ANSI lumens Projectors are normally rated in lumens (or more specifically ANSI lumens, which represents a particular set of test conditions. The ampere is a unit of current, flowing in an electrical wire that creates a field of a certain magnetic strength at the center. It measures the actual flow of electrons in the circuit. The hertz is the unit of frequency and is defined as one cycle per second of an electromagnetic wave. Voltage is the potential difference between two points (often likened to pressure in a water pipe) measured in Volts (V).

Which feature of a high-end gaming system allows fast loading of media assets from permanent storage?

An SSD drive

What type of connection uses a RJ-45 type of connector between the printer and the computer?

An Ethernet connection Most modern printers now have an Ethernet port and an installed NIC card. This allows the printer to be connected directly to the network. Many modern printers have a wireless NIC card installed into the printer that allows for connecting to a wireless network. This allows wireless devices to print directly to the printer. Some printers have a Universal Serial Bus (USB) Type B cable connection on the back of the printer. The Type B end of the cable goes to the printer while the Type A connector goes to the printer. Older printers used a data connection where the data is transmitted over one wire one bit at a time. This serial communication was replaced by the USB-type connection.

If you need to backup files and transfer them to another computer, which of these devices would you use?

An external storage drive External hard disks and portable Solid State Devices (SSDs) have become very popular for backup, additional storage, and as a means of transferring files. The Trusted Platform Module (TPM) is a chip on the computer motherboard. TPM is a specification for hardware-based storage of digital certificates, keys, hashed passwords, and other user and platform identification information. AMD uses Pin Grid Array (PGA) form factor chips, designed to fit in a Zero Insertion Force (ZIF) socket on the motherboard. Intel uses Land Grid Array (LGA) form factor CPUs. In LGA, the pins that connect the CPU and socket are located on the socket.

What allows you to connect and print directly to a printer without connecting other hardware to the printer?

An integrated print server Some printers come with integrated or embedded print server hardware and firmware, allowing client computers to connect to them over the network without having to go via a server computer. A wireless bridge is part of the hardware in a wireless network. This could establish a connection between the devices but the question specified no extra hardware. An 802.11 connection is a form of wireless connections. While this is a form of connectivity, the printer would also need internal hardware and software to handle printing. An RJ-45 port is part of an Ethernet system and requires a router or bridge provide the connection. Both the computer and printer would connect to this hardware.

For your new mobile device, the manufacturer uses a walled garden model. What does this mean?

Any applications have to have approval before release Apps have to be submitted to and approved before they are released to users. This is also referred as the walled garden model and is designed to prevent the spread of malware or code that could cause faults or crashes. This app model is more relaxed, with apps available from both multiple third-party sites, such as Amazon's app store, and do not have to be reviewed before being available. The Trusted Platform Module (TPM) is a chip on the computer motherboard. TPM provides storage of digital certificates, keys, and hashed passwords. A Software Development Kit (SDK) is specialized programming software provided by companies so third party developers can create apps for their products..

You are looking to replace the CD-ROM drive in your computer and want a drive that handles large amounts of data storage and can play the latest High Definition videos. Which drive would you install?

Blu-ray

What is the name of the service that allows iOS mobile devices to print wirelessly?

Bonjour The Bonjour service is a printer service that allows OS X PCs and iOS mobile devices to connect wirelessly to printer. Bonjour is the server part of the print solution. AirPrint provides client connectivity on Apple OS X PCs and iOS mobile devices. It works with the Bonjour service to provide a print solution for Apple products. The Transmission Control Protocol (TCP) is a standard that defines how to establish and maintain network connections so applications can exchange data. It works with the Internet Protocol (IP). Windows print sharing allows a computer to network share a printer that lacks an integrated print server.

Which of these is part of a fiber optic strand?

Buffer The protective coating around the cladding is called the buffer. This prevents light from entering the fiber cable and helps to bounce the light signal back into the core. A mesh conductor is part of a coaxial (coax) cable that serves both as shielding from Electromagnetic Interference (EMI) and as a ground. It is not found in fiber optic cables. A BNC (Barrel Nut Connector) coupler is used only on coaxial cables. The technician would need a crimper for an Ethernet cable. T568A and T568B are two methods for terminating RJ-45 connectors defined by the ANSI/TIA/EIA. T568A is mandated for US government premises and by the residential cabling standard (TIA 570).

A user needs to be able to access the central employee data repository to run reports, but does not need access to any local applications and has a remote log in to access data. What type of workstation would you build the user?

Build a thin client. A thin client is a PC or appliance designed to act as an interface to applications that run on a network server. The client PC does no application processing. A standard client (sometimes described as ""thick client") is an ordinary ""office"" PC. It will be used to run locally installed desktop applications. A workstation used for graphics needs to support applications with high CPU, GPU, and memory requirements. Such workstations also need a fast storage subsystem. This is a thin client where the computer interfaces with a whole Windows Desktop. This is referred to as Virtual Desktop Infrastructure (VDI). Since the user only needs to log into the server to run reports, the VDI is not necessary.

You have 400 MB of data you need to archive off your computer. Which of these would be the best choice to store the data with the least amount of leftover space on the disk?

CD-ROM/CD-RW The Compact Disk is a storage format for consumer multimedia, such as music and video and has a capacity of just less than 500 MB. DVDs (Digital Video or Versatile Disc), is a storage format for consumer multimedia, such as music and video and has a capacity of 4 - 17 GB. Hard Disk Drives (HDD) are one of the most widely used type of mass storage devices inside a computer. Solid state drives (SSD) use a type of non-volatile memory technology called flash memory and generally are used as a form of hard drive inside the computer.

Your office has a printer that needs to be put onto the network. Which of these solutions connects the printer directly to the network?

Connect the printer using its network port. Using a network port on the printer assigns an IP address directly to the printer. When you connect the printer to a computer and share it through Windows Printer Sharing, the computer has the IP address. Since the printer does not have an IP address, it is not connected directly to the network. A print server will be given its own IP address and the printer shared through a port. Since the printer does not have an IP address, it is not connected directly to the network. Some Networked Attached Storage (NAS) devices have the capability of sharing a printer across a network. Since the printer does not have an IP address, it is not connected directly to the network.

Which of these is designed for flat panels but is being phased out?

DVI The Digital Visual Interface (DVI) is a high quality digital interface designed for flat-panel display equipment. You are unlikely to see DVI used on new display devices or computers. The High Definition Multimedia Interface (HDMI) is the most widely used graphic device interface. It is ubiquitous on consumer electronics, such as televisions and Blu-Ray players. IBM created VGA (Video Graphics Array) as a standard for the resolution and color depth of computer displays. DisplayPort was developed by VESA, the organization largely representing PC graphics adapter and display technology companies. It is a royalty-free standard intended to "complement" HDMI.

Which connector is an alternative to a 25-pin connector?

DB-9 DB9 is a cheaper 9-pin D-shell (DB9) male port used by PC manufacturers in place of the DB25 25-pin D-shell connector for serial ports. Apple's iPhone and iPad mobile devices use a proprietary 8-pin Lightning port and connector. The Lightning connector is reversible (can be inserted either way up). BNC (alternately Bayonet-Neill-Concelman, British Naval Connector, or Barrel Nut Connector) connectors are crimped to the ends of Coaxial (or coax) cable.RJ-11 connectors are used with 2- or 3-pair UTP or with flat ribbon ""silver satin"" phone cables. Typically, only one pair carries the dial tone and voic

Which printer security issue concerns interception of printer jobs sent over a network?

Data privacy Data privacy concerns include print jobs sent over a network (such as via a cloud or remote print service) potentially being intercepted and read, copied, or modified. Hard drive caching is where most printers have a local storage device to use to cache print files. Someone with access to the device could be able to recover confidential information from the hard drive cache. User authentication is necessary to prevent unauthorized use of a network or cloud-based printer. This helps prevent issues with data privacy and hard drive caching. AirPrint provides client connectivity on Apple OS X PCs and iOS mobile devices. It works with the Bonjour service as a print solution for Apple products. It is not a security concern.

What is the term for allowing others on a network to use a printer connected to your computer?

Device sharing Device sharing means others can access a printer you have installed to your computer. This allows those who do not have a printer to print across a network. A collated print job is one where all pages of the first copy are printed, followed by all pages of the second copy, and so on. Duplex printing is printing on both sides of a sheet of a paper. Some printers have duplexing units that automatically print on both sides. Some printers require the user to flip the paper over manually. The Orientation setting in a printer determines the direction of text printed on the page, either in portrait or landscape mode.

Most high-end workstations need to be able to display lots of screen data. What can you install in a workstation to handle this issue?

Dual Monitors

What type of memory has enhanced parity circuits?

Error correcting

Coax cables use which type of connector?

F-connector Coax installations also use screw-down F-connectors. A broadband cable service, for example, is likely to use the F-connector for drop cables. Straight tip is a bayonet-style connector that uses a push-and-twist locking mechanism; used mostly for multi-mode networks. Twisted pair cabling for Ethernet is terminated using modular RJ-45 connectors. RJ-45 connectors are also referred to as 8P8C, standing for 8-position/8-contact. RJ-11 connectors are used with 2- or 3-pair UTP or with flat ribbon "silver satin" phone cables. Typically only one pair carries the dial tone and voice circuit (also called the Tip and Ring wires after the way older phono plugs were wired).

Which of these cabling media types is NOT common to Local Area Networks (LANs) environments?

F-connector Coax installations use screw-down F-connectors. They are an inexpensive, gendered, threaded, compression connector for radio frequency signals. A broadband cable service, for example, is likely to use the F-connector for drop cables. Twisted pair cabling for Ethernet is terminated using module RJ-45 connectors. RJ-45 connectors are also referred to as 8P8C, standing for 8-position/8-contact. A straight tip connector (ST connector) is a connector used in fiber-optic cables that utilizes a bayonet-style plug and socket; used mostly for multi-mode networks. SC connector is a fiber-optic cable connector that uses a push-pull latching mechanism like common audio and video cables. For bi-directional transmission, two fiber cables and two SC connectors (Dual SCs) are used.

A client needs a high end gaming system. What do you recommend for hardware requirements for this workstation?

Fastest RAM A high-end gaming system will most likely include a PC with a high-end, multicore processor; a high-end video card; and the fastest RAM that the motherboard can handle. The Parallel ATA (PATA) technology is the legacy technology replaced by SATA (Serial Advanced Technology Attachment). These drives are much slower than modern drives. Enhanced Integrated Drive Electronics (EIDE) was one of the early hard drive connection standards but most modern computers use Serial ATA (SATA) or SSD technology drives. A high-end gaming system needs the fastest RAM the motherboard can handle to process the large complex files generated by the computation-intensive programs.

A Network Attached Storage (NAS) device is used for what primary purpose?

File sharing across a network A Network Attached Storage (NAS) appliance is a hard drive (or RAID array) designed to share files across a network. It will also be able to make files available over the Internet, using HTTP or FTP. As well as sharing the disk resource, a NAS box will usually be able to share a printer but this is not the primary purpose of the device. Some NAS devices can stream media files to wireless speakers or an IP-enabled TV but this is not the primary purpose of a NAS. Sharing desktop applications is the purpose of the thin client/server system, not a NAS device.

How many conductor pairs are found in Ethernet cables?

Four (4) With the type of Unshielded Twisted Pair (UTP) used for Ethernet, the cable contains four copper conductor "pairs." Three pair cables are the type found in regular telephone wire, typically using unshielded copper wires connected to RJ-11 jacks. Very old telephone lines may have a single pair of wires, one for tip and one for ring. One pair is needed for each phone line in the house. Five pair wire is known as Multi-Conductor Wire And Cable and is designed for use in a number of communications applications, such as public address systems, remote control circuits, actuator controls, audio and sound systems, and data transmission.

Your company decided to upgrade the 20 year old office Ethernet network and needs the fastest speed possible but cannot afford fiber optic cables. What is your solution for this problem?

Gigabit Ethernet Gigabit Ethernet, also known as 1000BASE, is for 1000 Mbps LANs. This has replaced Fast Ethernet as the ""standard"" for a typical LAN. Since the company cannot afford fiber optic links, this would be the best choice of cabling. 10G Ethernet, also known as 10GBASE, has 10Gbps links for LANs and WANs, mostly using fiber optic media. 10G Ethernet is widely used in data centers. Fast Ethernet, also known as 100BASE, is copper wire and fiber optic implementations of 100 Mbps LANs. 10BASE Ethernet is the original standard, specifying cabling and connectors for copper wire and fiber optic products but mainly using copper wire.

Which of these devices would you use for online video conferencing?

HD webcam

Which printer security issue stems from someone potentially accessing print files on the local storage?

Hard drive caching Hard drive caching is where most printers have a local storage device to use to cache print files. Someone with access to the device could be able to recover confidential information from the hard drive cache. User authentication is necessary to prevent unauthorized use of a network or cloud-based printer. This helps prevent issues with data privacy and hard drive caching. AirPrint provides client connectivity on Apple OS X PCs and iOS mobile devices. It works with the Bonjour service as a print solution for Apple products. It is not a security concern. Data privacy concerns include print jobs sent over a network (such as via a cloud or remote print service) potentially being intercepted and read, copied, or modified.

Which of these would be in a specification for a gaming rig?

High-end cooling Some gamers are fond of overclocking components to obtain better performance. This means that a gaming PC will generate more heat than most other types of computer and needs high-end cooling solutions. The Parallel ATA (PATA) technology is the legacy technology replaced by SATA (Serial Advanced Technology Attachment). These slow drives would not be used in a gaming rig. With all types of workstations, screen ""real estate"" is often at a premium. In gaming rigs, this is not a priority. The Trusted Platform Module (TPM) is a chip on the computer motherboard. TPM provides storage of digital certificates, keys, and hashed passwords.

You are building a new high-end gaming rig. Which component would this system be built around?

High-end video GPU

You are installing a new printer in your office. You plan to connect the printer to the existing wireless network. What communication mode is this?

Infrastructure mode In infrastructure mode, the printer would be configured to connect to an access point and client connections would also be mediated by the access point. In ad hoc mode, client devices would connect directly to the printer usually through some form of wireless connectivity. Duplex printing is printing on both sides of a sheet of a paper. Some printers have duplexing units that automatically print on both sides. This is not a form of communications. Some printers have a Universal Serial Bus (USB) Type B cable connection on the back of the printer. Since you would be directly connecting to the printer, this is an ad hoc mode.

What is the typical input voltage for a power supply in North America?

Input of 115V A Power Supply Unit (PSU) set to the correct input voltage for North America is set to 115V. Some PSUs are dual voltage and handle multiple inputs. A Power Supply Unit (PSU) set to the correct input voltage for the United Kingdom is set to 240V. Some PSUs are dual voltage and handle multiple inputs. Power distribution refers to how much power is supplied over each PSU rail. The +5V output rail has a maximum load of 20 amps and a maximum output of 130 watts. Power distribution refers to how much power is supplied over each PSU rail. The +12V output rail has a maximum load of 33 amps and a maximum output of 396 watts.

You want to build a new home server. The new computer's primary functions are file storage, media streaming, and printer sharing. What would be a consideration in designing the machine?

Install RAID storage. Most home servers would use RAID storage to reduce the risk of losing valuable movie and audio files (there must still be a backup system in place of course, to protect against theft, fire, or accidental deletion). Most home servers are either a Home Theater PC (HTPC) with a slightly expanded role or a repurposed ""desktop"" or low-end PC server. These computers would not need a high-end CPU. Since most home servers are repurposed machines, they do not need the maximum amount of RAM for their functions of file storage, media streaming, and printer sharing. Multiple Network Interface Cards (NICs) would not be necessary in a home server.

The office manager needs to have a thin client installed next to the existing desktop. Desk space is limited and there is no room for more peripherals. How do you solve this issue?

Install a Keyboard, Video, Mouse (KVM) switch. A Keyboard, Video, Mouse (KVM) switch allows multiple computers to be controlled via a single keyboard, mouse, and monitor. Some switches designed for home use also support speaker and microphone ports. While this may solve the problem, space limitations or cost considerations may be prohibitive and not a solution to this issue. Smaller peripherals may fit on the desk but many have reduced functionality, such as missing keys on smaller keyboards. This has the issue of having multiples of the same device on the desk. This would not work, as each computer system needs a keyboard and a monitor at a minimum.

You have a computer user at your company that simply cannot remember the passwords to the computer. What could be a solution to this authentication problem?

Install a biometric sensor keyboard on that computer.

What is the defining quality of a network-based printer?

It is managed by a network computer called a print server. The defining aspect of a network-based printer is that it is managed by a network computer called a print server. The print server holds the print queue, not the networked printer. A local printer is one which is directly connected to a specific computer via USB cable. It is a printer that is only accessible from that workstation and therefore, can only service one computer at a time. A network printer does not have to have a physical connection to the network. Instead, it can also be connected wirelessly but it does not normally manage its own print queue. A networked computer may also use wireless Bluetooth technology to connect to other computers. With a Bluetooth network, it's possible to send print jobs from multiple devices to the same printer.

What is the most important performance criteria for a thin client?

Maximizing network connectivity The most important performance criterion for the thin client is the network link. The client PC does no application processing. It just transfers data over the network to the server. While having a Trusted Platform Module on the motherboard helps with security of the system, it is not an important consideration for a thin client. Installing a RAID array is not a consideration for a thin client, as the applications and data are hosted on the server. The thin client will have to meet the minimum requirements for installing Windows and running the basic software in order to access the applications hosted by the server. Meeting the recommended requirements of the OS is not necessary.

Which of these would be useful for a high-end workstation?

Maximum RAM The workstation needs the maximum amount of RAM the motherboard can handle to process the large complex files generated by the installed software programs. Enhanced Integrated Drive Electronics (EIDE) was one of the early hard drive connection standards but most modern computers use Serial ATA (SATA) or SSD technology drives. The Parallel ATA (PATA) technology is the legacy technology replaced by SATA (Serial Advanced Technology Attachment). SATA (Serial ATA) interface is a computer bus interface that connects to mass storage devices such as hard disk drives, optical drives, and solid-state drives. It is being replaced by much faster SSD drives.

Which of these is a concern when building a home Network Attached Storage (NAS) device?

Media streaming across a network Some NAS devices can stream media files to wireless speakers or an IP-enabled TV and would be a feature for consideration. The Parallel ATA (PATA) technology is the legacy technology replaced by SATA (Serial Advanced Technology Attachment). These slow drives would not be used in a NAS device. With all types of workstation, screen ""real estate"" is often at a premium. A NAS PC would not generally need dual monitors. The Trusted Platform Module (TPM) is a chip on the computer motherboard. TPM provides storage of digital certificates, keys, and hashed passwords.

Thin clients need to meet which of these considerations?

Meets minimum requirements for the selected OS The client will have to meet the minimum requirements for installing Windows and running the basic software in order to access the applications hosted by the server. While having a Trusted Platform Module on the motherboard helps with security of the system, it is not an important consideration for a thin client. The thin client will have to meet the minimum requirements for installing Windows so a low-end graphics card is acceptable for these systems. The client will have to meet the minimum requirements for installing Windows and a high-end audio card is not necessary.

When building a standard client, which of these is an important consideration?

Meets recommended requirements for the selected OS When building a standard client, it is important to pay attention to the recommended Windows system requirements and to the software application requirements. The most important performance criterion for the thin client is the network link. The client PC does no application processing. It just transfers data over the network to the server. Meeting the minimum Windows requirements for a standard client is likely to lead to poor performance as the system struggles to run the OS and applications. While having a Trusted Platform Module on the motherboard helps with security of the system, it is not an important consideration for a standard client.

Which of these is designed for smaller devices?

Micro-USB

Your company has a need for productivity apps that are usable anywhere and enable distributed teams to work together. Which of these vendors provide these services?

Microsoft

Your new digital video camera has an external card bay smaller than a Secure Digital (SD) card but is not very small. What type of card do you think you need for this slot?

Mini-SD card Mini-SD is a smaller version of the SD card, using the same capacity and speed designations. Micro-SD is the smallest version of the SD card, using the same capacity and speed designations. Secure Digital (SD) Card is a full-size type of memory card, used extensively in consumer digital imaging products but is smaller in size than the Compact Flash cards. Compact Flash (CF) was a very large card, bigger than a SD card, and had speeds rated the same as CDs and could support 512 GB though no cards larger than 256 GB were made.

Which of these Human Interface Devices (HIDs) contains rollers to detect movement?

Mouse

You are connecting a new PSU (Power Supply Unit). The PSU has a square 4-pin P4 cable but there is no square 4-pin receptacle on the motherboard. Where does this cable connect?

Plug it into the EPS12V receptacle. The connector will plug into an 8-pin EPS12V receptacle near the CPU. You should check the motherboard documentation for advice about which pins are the correct connection. The P4 connector does not connect into a PCIe port on a video card. The PCIe connector has 6 pins so the 4-pin P4 connector will not fit. Older hard drives use the 4-pin Molex connectors for power while newer hard drives use the SATA power connector. The motherboard will not receive enough power if you leave the connector unplugged and the computer will not operate properly.

You are building a thin client. What do you need to consider when specifying the hardware for the system?

Running the basic applications The client will have to meet the minimum requirements for installing Windows and running the basic software in order to access the applications hosted by the server. Installing a RAID array is not a consideration for a thin client, as the applications and data are hosted on the server. The thin client will have to meet the minimum requirements for installing Windows rather than meeting the recommended settings.While having a Trusted Platform Module on the motherboard helps with security of the system, it is not an important consideration for a standard client.

One of your users comes to you and tells you their company mobile phone was stolen. What is a major concern with the loss of the phone?

Single Sign On issues Both iOS and Android will prompt you to save passwords when you sign in to apps and websites. Anyone compromising the device will be able to access any service that has cached passwords on the device. Most mobile phones are inexpensive compared to the cost of other computer hardware. In this case, the main issue is the phone may have stored the passwords to company cloud services. While it may take considerable time to replace the device, the main issue is the security of the phone as it may have cached passwords to company cloud services. It may take time to replace the phone, but the major concern is the phone may have cached passwords to the company cloud services.

Which of these is a type of fiber optic connector?

Straight tip A straight tip connector (ST connector) is a connector used in fiber-optic cables that utilizes a bayonet-style plug and socket; used mostly for multi-mode networks. The ST connector setup allows for unidirectional communication, so two ST connectors and two fiber cables are used for bidirectional communication. Coax installations use screw-down F-connectors. A broadband cable service, for example, is likely to use the F-connector for drop cables. Twisted pair cabling for Ethernet is terminated using module RJ-45 connectors. RJ-45 connectors are also referred to as 8P8C, standing for 8-position/8-contact. A BNC (Bayonet-Neill-Concelman) connector is a miniature quick connect/disconnect radio frequency connector used for coaxial cable.

Which output rail in a power supply unit (PSU) has a maximum load of 20 amps?

The +5V rail The PSU has two +5V output rails, one as a standby, with the primary rail having a maximum load of 20 amps and a maximum output of 130 watts. The PSU +12V output rail has a maximum load of 33 amps and a maximum output of 396 watts. A Power Supply Unit (PSU) set to the correct INPUT voltage for North America is set to 115V. Some PSUs are dual voltage and handle multiple inputs. A Power Supply Unit (PSU) set to the correct INPUT voltage for the United Kingdom is set to 240V. Some PSUs are dual voltage and handle multiple inputs.

Where would you look in Windows to pair a Bluetooth device to the computer?

The Bluetooth Devices applet

If you need your printer to completely print each copy of a print job before printing the second copy, which setting would you turn on?

The Collated Jobs setting A collated print job is one where all pages of the first copy are printed, followed by all pages of the second copy, and so on. Some printers have the capability of accepting print jobs from remote locations, usually over the Internet. Duplex printing is printing on both sides of a sheet of a paper. Some printers have duplexing units that automatically print on both sides. Some printers require the user to flip the paper over manually. The Print All Pages setting forces the printer to print every page in the print job rather than ask which pages the user wants to print.

If you install a printer and need to print on both sides of the paper, which setting would you turn on?

The Duplex Mode setting Duplex printing is printing on both sides of a sheet of a paper. Some printers have duplexing units that automatically print on both sides. Some printers require the user to flip the paper over manually. Simplex mode printing refers to printing on a single side of the paper. This the default print setting on most printers. Some printers have the capability of accepting print jobs from remote locations, usually over the Internet. Manual feed tray selection is when the user can select which tray of paper to print from if the printer has multiple trays. Some printers can hold both letter and legal size paper in their trays.

Where would you configure touchpad options in Windows?

The Mouse applet In Windows, the touchpad can be configured using the Mouse applet in Control Panel. Installing the manufacturer's driver will make the device-specific options available, such as configuring scroll areas or gesture support. The Settings page is where you set Windows settings including System, Phone, Personalization, Apps, Accounts and others. These are the settings for the Windows itself. The Devices and Printers folder is where you configure the user configurable settings on a printer in Windows. This is the best place to change the printer settings. The Device Manager page provides tools for verifying and configuring devices. You can update drivers, check device hardware properties, and enable/disable devices.

What setting on a printer determines the direction of the print on the page?

The Orientation setting

Which printer setting allows you to conserve printer ink?

The Quality setting The printer Quality setting allows you to use an economy or draft mode to preserve ink/toner by determining the amount of ink used in printing each character. The Orientation setting in a printer determines the direction of text printed on the page, either in portrait or landscape mode. A collated print job is one where all pages of the first copy are printed, followed by all pages of the second copy, and so on. Duplex printing is printing on both sides of a sheet of a paper. Some printers have duplexing units that automatically print on both sides. Some printers require the user to flip the paper over manually.

Where would you configure touchscreen options in Windows?

The Tablet PC Settings applet In Windows, touchscreen options are configured using the Tablet PC Settings and Pen and Touch applets. The Settings page is where you set Windows settings including System, Phone, Personalization, Apps, Accounts and others. These are the settings for the Windows itself. The Devices and Printers folder is where you configure the user configurable settings on a printer in Windows. This is the best place to change the printer settings. The Device Manager page provides tools for verifying and configuring devices. You can update drivers, check device hardware properties, and enable/disable devices.

What is the main connection difference between USB-A and other versions of USB?

The connector is a large flat rectangle. You use USB Type A to connect to a host. The connector and port are shaped like large flat rectangles. USB Type C is a new reversible connector for devices. The connector is reversible, meaning it can be inserted either way up. The connector design is also more secure and robust. The USB-B has a square beveled-top and is used in connecting to a device such as a printer. The connector and port are square, with a beveled top. The small beveled connector is a Type B Mini or Type B Micro. This type of connector was seen on early digital cameras (Type B Mini) but is no longer widely used.

The location of which of these determines if a computer is a thin or standard client?

The desktop applications A standard client is an ordinary "office" PC. It will be used to run locally installed desktop applications. A thin client is a PC or appliance designed to act as an interface to applications that run on a network server. The location of the hard drives on the computer does not matter. The location of the user applications determines the type of client. The location of the graphics does not determine if it is a standard or thin client. The location of the user applications determines the type of client. All computers need a monitor so the location does not determine if it is a standard or thin client. The location of the user applications determines the type of client.

Your office needs you to connect a legacy impact printer to a computer to print some special reports. Which is a consideration when installing these printers?

The device needs to be installed on a COM port. The impact printer uses the legacy serial (RS-232 or COM) port and you need to select the appropriate COM port and driver. You may also need to configure custom COM port settings. The impact printer uses the legacy serial (RS-232 or COM) port, which uses a "null modem" cable. A USB cable would not be used to connect the printer. The impact printer uses the legacy serial (RS-232 or COM) port, which uses a "null modem" cable. A SCSI cable would not be used to connect the printer. The printer is being connected directly to a computer through a printer port. It would not need a network interface card.

What determines the number and type of devices a power supply can support?

The number of connectors

Which of these properties from each power-using component in a computer do you total when determining the size of the necessary power supply?

The power rating The total power consumption by the components cannot exceed the power rating of the power supply. The maximum power output available from a PC power supply is measured in watts. Resistance is the degree of opposition to the current caused by characteristics of the conductor. Each component has resistance but this does not affect the size of the power supply. Voltage is the degree of opposition to the current. The input voltage is the main concern with a power supply. Energy is the amount of power consumed by a device over time. This is measured in Watt-hours (or more typically Kilowatt-hours [kWh]). Component energy use is not a concern with the size of the power supply.

What is the maximum power output of a power supply known as?

The wattage rating The maximum power output (power rating) available from a PC power supply is measured in watts, calculated as voltage multiplied by current (V*I). The amperage rating is the total maximum current load any wire or rail can provide without damage. This is not a measure of total power output. The voltage rating is the amount of potential difference between two points (often likened to pressure in a water pipe) measured in Volts (V). This is not a measure of total power output. The hertz is the unit of frequency and is defined as one cycle per second of an electromagnetic wave. This is not a measure of total power output.

Which type of system runs the Virtual Desktop Infrastructure (VDI)?

Thin client A thin client is a PC or appliance designed to act as an interface to applications that run on a network server. When a thin client interfaces with a whole Windows Desktop, it is referred to as Virtual Desktop Infrastructure (VDI). A standard (thick) client might be configured with multiple user accounts. These user accounts can be defined locally on each computer. A gaming rig (or gaming computer) is a home PC and usually configured with a single local user account rather than network-based accounts. CAM (Computer Aided Manufacturing) workstations control machine tools found in manufacturing environments and may use specialized controller cards and server-based connections.

Which of these cables was invented by Intel?

Thunderbolt Intel developed the Thunderbolt (TB) interface for use on Apple workstations and laptops. It connects display devices (like DisplayPort) and peripheral devices (like USB). Apple's iPhone and iPad mobile devices use a proprietary 8-pin Lightning port and connector. The Lightning connector is reversible (can be inserted either way up). Serial port is an old type of cable where the data is transmitted over one wire one bit at a time. The Universal Serial Bus (USB) has become the standard means of connecting peripheral devices to a computer. It is an example of a multipurpose cable that can be used to attach a wide range of peripherals and storage devices.

You installed a new printer in your home office and you want to print to it from mobile devices in the same room. What would be the best connection solution for the printer?

Use a Bluetooth connection. A Bluetooth connection works over short ranges and requires a mobile device to be in the same room as the printer but is a good choice for short-range connections. A wired connect would not be a good choice. Most mobile devices do not have the ability to link into a wired connection. Older printers used a data connection where the data is transmitted over one wire one bit at a time. This is a form of wired communications and not usable for mobile devices. Some printers have a Universal Serial Bus (USB) Type B cable connection on the back of the printer. This is a form of wired communications and not usable for mobile devices.

You upgraded the hard drive in an Intel-based computer. When connecting the power supply to the new hard drive, you realize the existing power connectors do not connect to the new hard drive. What is your solution?

Use a Molex to SATA adapter. Older power supplies use the 4-pin (1x4) Molex connectors to supply power for peripheral devices. New hard drives use the SATA power connector. You would use a Molex to SATA adapter. Newer power supplies use the 15-pin (1x15) SATA (Serial ATA) connectors to supply power for peripheral devices. If you need to connect an older drive, you need to use a SATA to Molex adapter. Since you just upgraded the power supply, replacing it to change cable ends would not be an effective solution. A 6-pin (2x3) connector is used to supply an extra 75W power to PCIe graphics cards. This was updated to an 8-pin connector delivering 150W. This would not be used for hard drives.

You need to build out the networking for your small local business. You have purchased a core switch and will pull home runs to each of the devices. What type of cabling will you use to connect your network?

Use a RJ-45 cable. A RJ-45 (Registered Jack) connector is used with twisted pair cable for Ethernet local area networking products with RJ-45 ports, such as the core switch you have installed. RG-59 is a coaxial cable that has a thinner core conductor and was used as drop cable for older CATV/cable modem installs and is also used for CCTV cabling. RJ-11 connectors are used with 2- or 3-pair UTP or with flat ribbon; "silver satin" phone cables. Typically, only one pair carries the dial tone and voice. RG-6 is a coaxial cable that has a thicker core conductor for better signal quality and is often used as drop/patch cable for modern Cable Access TV (CATV) and broadband cable modems

If you need to print from your home to your work office, what type of print solution could you use?

Use a cloud printing solution. Third-party software, such as Google's Cloud Print, can connect cloud-ready printers to the Internet and make the printer available for remote printing. A wireless solution is good for connecting to local printers that are not connected to a wired network but this would not allow you to print to your work office. In ad hoc mode, client devices would connect directly to the printer usually through some form of wireless connectivity and typically used between devices in the same office. Some printers come with integrated or embedded print server hardware and firmware, allowing client computers to connect to them to print without needing external hardware.

You installed a new printer in your home office and you want to print to it from your computers and mobile devices in your home. What would be the best connection solution for the printer?

Use a wireless connection.

What connection would be best for a printer that you want to print to from anywhere in your office?

Use an 802.11 connection. An 802.11 connection is a form of wireless connections. This is a good choice for connectivity between separated devices. Some printers have a Universal Serial Bus (USB) Type B cable connection on the back of the printer. This is a form of wired communications and not usable for mobile devices. Older printers used a data connection where the data is transmitted over one wire one bit at a time. This is a form of wired communications and not usable for mobile devices. Ethernet is the standard protocol for wired devices using the RJ-45 series of jacks. This would not be a good choice for long distances between the printer and the computer.

Your company wants to purchase cloud-based application services, but is now concerned about users needing multiple accounts and passwords. What do you suggest as a solution?

Use mutual authentication for multiple services. Mutual authentication for multiple services means that one service accepts the credentials from another service. This is usually described as federated identity management. This way your company can get the services it actually needs. While this may make accessing the cloud easier it may force the company to accept solutions that do not meet its needs. A synchronization service allows for sharing of data files across multiple platforms but does not provide applications for the users. A password manager may make accessing the cloud-based services easier. The better choice is to have each service authenticate to each other so the user only needs to remember one password.

Your office uses an inkjet printer and needs to reduce the cost of printing. What is most significant way to save costs?

Use the Paper/Quality tab and select draft mode on the printer. Using the Paper/Quality tab and selecting the draft mode on the printer is the best way to cut costs. This way each print job uses less ink and the office saves money. Ink cartridges are the biggest cost for inkjet printers. Using the Paper/Quality tab and selecting a stiffer quality of paper will not reduce costs, as stiffer paper is generally more expensive than normal print paper. Using the Paper/Quality tab and selecting full color mode on the printer will increase costs as the printer uses the different colors. Colored ink is generally more expensive than black ink. Selecting landscape mode on the printer just prints the text in a different direction on the paper. This choice will not save money.

Which of these devices replaces real world sights and sounds with computer generated data?

VR set

When you install a new printer, where in Windows would you configure the device?

WIndows Settings applet The Settings applet is where you set Windows settings including System, Phone, Personalization, Apps, Accounts and others. These are the settings for the Windows itself. The Device Manager page provides tools for verifying and configuring devices. You can update drivers, check device hardware properties, and enable/disable devices. The Computer Manager applet lets you configure system tools such as the task scheduler and configure storage devices installed in the computer. The File Explorer applet lets you find, search and sort files within the Windows file system and connect to remote files across the network.

You installed a printer in your office by cabling it to one of the Windows-based computers because you cannot print to it directly. You want others to print to this printer as well. What would you call this setup?

Windows printer sharing Since this printer does not have an integrated print server, it needs to be shared over the network by the Windows computer. While the printer and computer are connected to a network, the printer must be shared out by the Windows computer.Some printers come with integrated or embedded print server hardware and firmware, allowing client computers to connect to them to print without needing external hardware. In ad hoc mode, client devices would connect directly to the printer usually through some form of wireless connectivity. In this case, the computer and printer are wired together.

You recently built and installed a standard client station in the office. The user complains the computer runs slowly and has poor performance. What might you have overlooked when designing the workstation?

You built the computer to the minimum Windows requirements necessary for the machine. When configuring a standard client, it is important to pay attention to the recommended Windows system requirements. Specifying the minimum Windows requirements is likely to lead to poor performance. When configuring a standard client, it is important to pay attention to the recommended Windows system requirements. Using the recommended requirements ensures the computer can run the installed software. The Virtual Desktop Infrastructure (VDI) is comprised of thin clients interfacing with a server. It is not used on standard clients. The issue is with programs running on the desktop not the communications with the server, so the speed of the network is immaterial to the issue.

You installed a new PCIe graphics card in your desktop computer. After reinstalling everything, the new card does not work when applying power to the machine. If you assume the card is not defective, what might you have forgotten?

You forgot to install the secondary PCIe power connector to the video card. Many new video cards need extra power and have either a 6-pin or 8-pin connector for extra power. These cards will not work without the extra power. PCIe video card connectors on the bottom of the card are keyed so they will only fit in the proper slots on the motherboard. The DVI cable is an external cable that connects to the outside of the video card. Not attaching a cable in the DVI port will not cause the video card to stop working. The HDMI cable is an external cable that connects to the outside of the video card. Not attaching a cable in the HDMI port will not cause the video card to stop working.

You upgrade your office graphics workstation with more memory. You replace two of the four inexpensive memory chips with expensive memory designed for workstations but now the system refuses to boot. What could be the problem?

You mixed ECC memory with non-error checking memory. ECC memory is expensive enhanced parity circuitry that can detect internal data errors and make corrections. You cannot mix ECC and non-parity chips. Your old chips may be non-parity. SODIMMs are a type of memory found in laptops. You would not be able to install this type into your workstation so this is not the problem. If the pin count of the chip does not match the pin count on the motherboard you would not be able in physically install the chip. Your motherboard worked with no issues before you installed the new chips. You would not expect the motherboard to be defective.

Which device allows your phone to act as a kind of "electronic wallet?"

A tap pay device

Which of these was the original "type" of Ethernet?

10BASE 10 Mbps (10BASE) - This is the original standard, specifying cabling and connectors for copper wire and fiber optic products. Fast Ethernet (100BASE) - A copper wire and fiber optic implementation for 100 Mbps LANs. The follow on to the original type of Ethernet. Gigabit Ethernet (1000BASE) - 1000 Mbps LANs. This has replaced Fast Ethernet as the "standard" for a typical LAN found in homes and offices. 10G Ethernet (10GBASE) - 10 Gbps links for LANs and WANs, mostly using fiber optic media. 10G Ethernet is widely used in data centers. 10G components are expensive and primarily used in data centers and possibly for backbone links.

You want to upgrade the hard drive in your computer to a fastest spinning high performance drive. What spin speed would the new drive have?

15,000rpm

The hard drive in your laptop has died. What form factor size of replacement hard drive would you need to replace the failed drive?

2.5" There are two main formats for HDDs, 2.5" and 3.5". The 2.5" form factors are used for laptops and as portable external drives. There are two main formats for HDDs, 2.5" and 3.5". The 3.5" units are the mainstream type used in PCs. There are two main formats for HDDs, 3.5" and 2.5". There is also a 1.8" form factor but it is not widely used. 15mm is one of the heights of available for the 2.5" hard drive, which are mainly used in laptops and as portable external drives.

The hard drive in your tower computer has died. What form factor size of replacement hard drive would you generally use to replace the failed drive?

3.5" There are two main formats for HDDs, 2.5" and 3.5". The 3.5" units are the mainstream type used in PCs. There are two main formats for HDDs, 2.5" and 3.5". The 2.5" form factors are used for laptops and as portable external drives. There are two main formats for HDDs, 3.5" and 2.5". There is also a 1.8" form factor but it is not widely used. 7mm is one of the heights of available for the 2.5" hard drive, which are mainly used in laptops and as portable external drives.

You are replacing a very old hard drive in a computer. What spin speed would you expect from this very early average performance hard drive?

5,400rpm Revolutions Per Minute (RPM) determines overall drive performance. Average performance drives would have lower RPMs, such as 7,200 or 5,400rpm. Earliest drives had a speed of 5,400rpm. Revolutions Per Minute (RPM) determines overall drive performance. The higher the RPM, the faster the drive. Average drive performance is 7,200 or 5,400 rpm. 7,200rpm drives replaced the 5,400rpm drives. Revolutions Per Minute (RPM) determines overall drive performance. The higher the RPM, the faster the drive. High performance drives are rated at 15,000 or 10,000rpm. Revolutions Per Minute (RPM) determines overall drive performance. The higher the RPM, the faster the drive. The newest high performance drives are rated at 15,000rpm.

You are replacing a hard drive in a computer. What spin speed would you expect from this newer average performance hard drive?

7,200rpm Revolutions Per Minute (RPM) determines overall drive performance. The higher the RPM, the faster the drive. Average drive performance is 7,200 or 5,400 rpm. 7,200rpm drives replaced the 5,400rpm drives. Revolutions Per Minute (RPM) determines overall drive performance. Average performance drives would have lower RPMs, such as 7,200 or 5,400rpm. Earliest drives had a speed of 5,400rpm. Revolutions Per Minute (RPM) determines overall drive performance. The higher the RPM, the faster the drive. The newest high performance drives are rated at 15,000rpm. Revolutions Per Minute (RPM) determines overall drive performance. The higher the RPM, the faster the drive. High performance drives are rated at 15,000 or 10,000rpm.

Which of these is the international standard for Ethernet technology?

802.3 Ethernet is technically known by the series of standards produced by the IEEE 802.3 working group. While the product name is not used in 802.3 standards documentation, it is otherwise universally referred to as Ethernet .802.1 is concerned with 802 LAN/MAN architecture and internetworking among 802 LANs, MANs and wide area networks. IEEE 802.2 is the original name of the ISO/IEC 8802-2 standard which defines logical link control as the upper portion of the data link layer of the open systems interconnections model. IEEE 802.11 is a set of media access control and physical layer specifications for implementing wireless local area network (WLAN) computer communication.

Which of these Human Interface Devices (HIDs) would be the best choice to control a flight simulator program?

A 2-button joystick Game controllers include items like joysticks or game pads. There are also controllers for specific game types, such as steering wheels for driving games and light guns for shooting games. A signature pad allows a recognition system to analyze the individual behavior of the person signing, such as the strokes used and the pressure applied while signing, to verify the identity of the user. The mouse is the main type of pointing device for graphical software. A feature of mice is the number of buttons (between two and four), which can be customized to different functions. The keyboard is the longest serving type of input device. Historically, keyboards were connected via the 6-pin mini-DIN PS/2 port.

Which of these would you use for Voice over IP (VoIP) calling via a Bluetooth connection?

A headset A headset combines headphones and microphone in a single device. They are mostly used with Voice over IP (VoIP) calling, meeting, and conferencing applications. A microphone is an audio input device that allows audio chips to record audio by sampling analog audio signals. The keyboard is the longest serving type of input device. Historically, keyboards were connected via the 6-pin mini-DIN PS/2 port but many now use a USB connection. Surround sound uses multiple speakers positioned around the listener to provide a "cinematic" audio experience. Each speaker is an audio output device.

Which of these Integrated Drive Electronics (IDE) interface standards has a maximum transfer rate of 66 MBps?

ATA/ATAPI-5 ATA/ATAPI-5 uses UDMA mode 4 (Ultra ATA/66) and has a maximum transfer rate of 66 MBps. ATA/ATAPI-4 uses UDMA mode 2 (Ultra ATA/33) and has a maximum transfer rate of 33 MBps. It is also known as Ultra DMA and uses Cyclic Redundancy Checking. ATA/ATAPI-6 uses UDMA mode 5 (Ultra ATA/100) and has a maximum transfer rate of 100 MBps. It uses 48-bit LBA expansion and disk noise reduction. ATA/ATAPI-7 uses UDMA mode 6 (Ultra ATA/133) and has a maximum transfer rate of 133 MBps. It has multimedia streaming as a special feature.

If you need an external device to store large amounts of data to transfer easily between computers, which type of device would you install?

An optical drive A removable optical disc or drive can be attached to different computers to move or copy data files. These drives come as CD-ROM, DVD, or Blu-ray drives. A scanner is a digital imaging device, designed to create computer file data from a real-life object. Typically, scanners handle flat objects. The Trusted Platform Module (TPM) is a chip on the computer motherboard. TPM is a hardware-based storage of digital certificates, keys, and hashed passwords. A barcode scanner is a handheld or pen-shaped device designed to scan patterns of different sized parallel bars, typically representing a product number, such as an ISBN, EAN, or UPC.

You need to archive over 20 GB of data off of your computer but do not need to change the data once you burn it to a disk. Which type of optical disk would you use?

BD-R Blu-ray drives are capable of CD and DVD playback and burning, and hold over 20 GB of data. Blu-ray Recordable (BD-R) media can be burned one time, much like a CD-ROM. Blu-ray Re-Recordable (BD-RE) media can be burned many times like a CD-R and hold over 20 GB. Solid state drives (SSD) use a type of non-volatile memory technology called flash memory and generally are used as a form of hard drive inside the computer. DVD (Digital Video or Versatile Disc) is a storage format for consumer multimedia, comes in both recordable and re-recordable, and has a capacity of 4 - 17 GB.

You need to archive over 20 GB of data off your computer and the archive needs updating frequently. Which type of external drive would you use?

BD-RE Blu-ray Recordable (BD-RE) media can be burned multiple times, much like a CD-RW and holds over 20 GB of data. Blu-ray drives are capable of CD and DVD playback and burning, and hold over 20 GB of data. Blu-ray Recordable (BD-R) media can be burned one time, much like a CD-ROM. DVD (Digital Video or Versatile Disc) is a storage format for consumer multimedia, comes in both recordable and re-recordable, and has a capacity of 4 - 17 GB. Hard Disk Drives (HDD) are one of the most widely used type of mass storage devices inside a computer.

Which of these connectors would you use with coaxial (coax) cable?

BNC BNC (alternately Bayonet-Neill-Concelman, British Naval Connector, or Barrel Nut Connector) connectors are crimped to the ends of Coaxial (or coax) cable. RJ-11 connectors are used with 2- or 3-pair UTP or with flat ribbon ""silver satin"" phone cables. Typically only one pair carries the dial tone and voice. DB9 is a cheaper 9-pin D-shell (DB-9) male port used by PC manufacturers in place of the DB25 25-pin D-shell connector for serial ports. Apple's iPhone and iPad mobile devices use a proprietary 8-pin Lightning port and connector. The Lightning connector is reversible (can be inserted either way up).

For the office network upgrade to Gigabit Ethernet, you need proper cabling. What is your choice of cabling?

Cat 5e and Cat 6 Cat 5e has a capacity of 1 Gbps and is suitable for the network. Cat 6 cable has a capacity of 10 Gbps and both are suitable for the network. Cat 5 cable has a capacity of 100 Mbps and is unsuitable for the network. Cat 5e has a capacity of 1 Gbps and is suitable for the network. Cat 6 cable has a capacity of 10 Gbps and is suitable for the network. Cat 5 cable has a capacity of 100 Mbps and is unsuitable for the network. Cat 5 cable has a capacity of 100 Mbps and is unsuitable for the office network. Cat 6A has a capacity of 10 Gbps and is suitable for the network.

Which category of Ethernet cable is 250MHz and carries 1-10 Gbps of data?

Cat 6 Cat 6 uses 250MHz and carries 1Gbps of data up to 100m (328ft) and can carry 10Gbps of data up to 55m (180ft). 1Gbps is used in 1000BASE-T neworks and 10Gbps is used in 10GBASE-T neworks. Cat 5 uses 100MHz and carries 100Mbps of data up to 100m (328ft) and is used in 100BASE-TX networks. Cat 5e uses 100MHz and carries 1 Gbps of data up to 100m (328ft) and is used in 1000BASE-T networks. Cat 6A uses 500MHz and carries 10 Gbps fo data up to 100m (328ft) and is used in 10GBASE-T networks.

You have an older digital camera that has a very large external card bay, bigger than the regular Secure Digital (SD) card bay. What type of memory card do you need?

Compact Flash

Which of these has a data rate of 400 - 1066 MegaTransfers per Second (MT/s)?

DDR2 DDR2 has a memory clock from 100-266 MHz, a bus clock of 200-533 MHz, a data rate of 400-1066 MT/s and a transfer rate of 3.2-8.533 GBps. DDR-266 has a memory clock of 133 MHz, a bus clock of 133 MHz, a data rate of 266 MT/s and a transfer rate of 2.1 GBps. DDR3 has a memory clock from 100-266 MHz, a bus clock of 400-1066 MHz, a data rate of 800-2133 MT/s and a transfer rate of 6.4-17.066 GBps. DDR4 has a memory clock from 200-400 MHz, a bus clock of 800-1600 MHz, a data rate of 1600-3200 MT/s and a transfer rate of 12.8-25.6 GBps.

Which of these has a bus clock of 200 -533 Mhz?

DDR2 DDR4 has a memory clock from 200-400 MHz, a bus clock of 800-1600 MHz, a data rate of 1600-3200 MT/s and a transfer rate of 12.8-25.6 GBps. DDR3 has a memory clock from 100-266 MHz, a bus clock of 400-1066 MHz, a data rate of 800-2133 MT/s and a transfer rate of 6.4-17.066 GBps. DDR-333 has a memory clock of 167 MHz, a bus clock of 167 MHz, a data rate of 333 MT/s and a transfer rate of 2.7 GBps. DDR2 has a memory clock from 100-266 MHz, a bus clock of 200-533 MHz, a data rate of 400-1066 MT/s and a transfer rate of 3.2-8.533 GBps.

Which of these has a memory clock of 200 - 400 MHz?

DDR4 DDR4 has a memory clock from 200-400 MHz, a bus clock of 800-1600 MHz, a data rate of 1600-3200 MT/s and a transfer rate of 12.8-25.6 GBps. DDR3 has a memory clock from 100-266 MHz, a bus clock of 400-1066 MHz, a data rate of 800-2133 MT/s and a transfer rate of 6.4-17.066 GBps. DDR-333 has a memory clock of 167 MHz, a bus clock of 167 MHz, a data rate of 333 MT/s and a transfer rate of 2.7 GBps. DDR2 has a memory clock from 100-266 MHz, a bus clock of 200-533 MHz, a data rate of 400-1066 MT/s and a transfer rate of 3.2-8.533 GBps.

You have just over 3 GB of data you need to archive off your computer. Which of these would be the best choice to store the data with the least amount of leftover space on the disk?

DVD-ROM/DVD-RW/DVD-RW DL A DVD (Digital Video or Versatile Disc) is a storage format for consumer multimedia, such as music and video and has a capacity of 4 - 17 GB. The Compact Disk is a storage format for consumer multimedia, such as music and video and has a capacity of just less than 500 MB. Solid state drives (SSD) use a type of non-volatile memory technology called flash memory and generally are used as a form of hard drive inside the computer. Hard Disk Drives (HDD) are one of the most widely used type of mass storage devices inside a computer

If you want to connect a non-Apple laptop to a TV set, which type of adapter would you use?

DVI to HDMI DVI is not supported on many consumer devices so you may use a DVI to HDMI adapter to connect a laptop to a TV set. There is no signal conversion involved so this can be performed by a passive cable. Older flat panels may only come with VGA ports so you would use the DVI to VGA to connect the laptop to the flat panel display. You would use the HDMI to VGA adapter to connect a laptop to an older flat panel display. This type of converter usually requires an active Digital to Analog Converter (DAC) chip. You would use a Thunderbolt to DVI adapter to connect an older Apple computing device to newer display devices.

Which DVI (Digital Visual Interface) configuration is used for HDTV digital and analog connections?

DVI-I dual link DVI-I dual link supports over 7.4 Gbps bandwidth and can transmit HDTV @ 85 fps and supports both analog and digital equipment. DVI-A is the original form of DVI and is single link and supports only analog equipment, noted by the -A in the name of the configuration. DVI-D single link supports digital equipment only and has bandwidth of 3.7 Gbps, which only supports HD resolution. DVI-D dual link has a bandwidth of 7.4 Gbps and can transmit HDTV @ 85 fps but supports digital equipment only, as noted by the -D in the name of the configuration.

Which of these was developed as a royalty-free standard?

DisplayPort DisplayPort was developed by VESA, the organization largely representing PC graphics adapter and display technology companies. It is a royalty-free standard intended to "complement" HDMI. The Digital Visual Interface (DVI) is a high quality digital interface designed for flat-panel display equipment. You are unlikely to see DVI used on new display devices or computers. The High Definition Multimedia Interface (HDMI) is the most widely used graphic device interface. It is ubiquitous on consumer electronics, such as televisions and Blu-Ray players. IBM created VGA (Video Graphics Array) as a standard for the resolution and color depth of computer displays. VGA specifies a resolution of 640x480 with 16 colors (4-bit color) at 60 Hz.

Which type of cable would you use to run through walls?

Drop cable Drop cables are solid cabling used for "permanent" links, such as cable running through walls. This is often also called drop cable, as the installer drops the cable through the wall void to the hole cut out for the port. Plenum cable is fire retardant and must not emit large amounts of smoke when burned, be self-extinguishing, and meet other strict fire safety standards. A patch cord is used to connect a port on the patch panel to a port on the switch. A crossover cable uses a T568A connector at one end and T568B at the other. Crossover cables were once used to connect computers directly.

What is the term for a motherboard passing 128 bits of data per "transaction?"

Dual-channel With a dual-channel memory controller there can effectively be two pathways through the bus to the CPU, meaning that 128 bits of data can be transferred per "transaction" rather than 64 bits. Single-channel memory means that there is one 64-bit bus between the CPU and RAM per "transaction." Triple channel means there are three 64-bit bus channels between the CPU and RAM which can pass 192 bits of data per "transaction." Error Checking and Correcting (ECC) memory is enhanced parity circuitry that can detect internal data errors and make corrections.

If you want to connect an older flat panel display to your brand new non-Apple laptop, which type of adapter would you use?

HDMI to VGA You would use the HDMI to VGA adapter to connect a laptop to an older flat panel display. This type of converter usually requires an active Digital to Analog Converter (DAC) chip. Older flat panels may only come with a VGA port so you would use the HDMI to VGA port to connect the new laptop to the old flat panel display. It is unlikely to find an older flat panel with an HDMI connector. DVI may be found on older laptops; however, the question indicates that your laptop is new. Most new laptops have HDMI ports. You would use a Thunderbolt to DVI adapter to connect an older Apple computing device to newer display devices.

You need to build a server that allows for removing the hard drives without opening the chassis. What feature is this?

Hot swappable Hot swappable drives plug into a combined data and power port on the enclosure. This means that drives can be easily added and removed from the front of the case without having to open the chassis. Modern low cost RAID solutions may use the SATA interface while Serial Attached SCSI (SAS) is a popular technology for server-class machines. RAID (Redundant Array of Independent Disks) is where many hard disks can act as backups for each other to increase reliability or act together as one very large drive. The Advanced Host Controller Interface (AHCI) is the logical interface used by SATA devices to communicate with the host's bus and is not a hardware connection technology.

You want to upgrade the hard drive in your computer so that it can hold large amounts of data but can very quickly provide frequently accessed data. Which kind of drive would you use?

Hybrid drives In a hybrid drive, the SSD portion functions as a large cache, containing data that is accessed frequently. The magnetic disc is only spun up when non-cached data is accessed. SATA (Serial ATA) interface is a computer bus interface that connects to typical magnetic hard disk drives that hold large amounts of data. eSATA (External Serial Advanced Technology Attachment) is a standard for the attachment of external drives to a computer. Solid State Drives (SSD) are designed to replicate or supplement the function of the hard drive. While access times are fast, the size of the drive is usually smaller than magnetic drives.

The office graphics designer comes to you complaining about how long it takes to open software on the graphics workstation and wants you to upgrade the computer to fix this. What do you do?

Install an SSD in place of the hard drive. Since the issue is slow loading of projects, the problem is reading data off the hard drive. Solid State Drives (SSD) are significantly faster than magnetic hard drives. A faster CPU would help process projects faster, but would not affect the loading time. This is an issue with the speed of the hard drive. Installing more RAM would help process the projects faster. Replacing the hard drive with a SSD would be a better choice. Installing a faster video card may help to speed up processing graphics projects, it would not help in decreasing the loading time. Replacing the hard drive with an SSD would be a better choice

Why would you use Shielded Twisted Pair (STP) Ethernet cable rather than unshielded cable?

It stops crosstalk. Shielded cable is less susceptible to interference and crosstalk. Each pair was surrounded by a braided shield. This cable construction is referred to as Shielded Twisted Pair (STP). Fire retardant cables are used in the plenum space, where the chance of fire is much greater so the cable is required to meet strict fire safety codes. STP is bulky and difficult to install as a braided shield surrounds each pair, making the cable harder to install. Interference on the cable degrades communications so you want to prevent this. Shielded cable makes it less susceptible to interference and crosstalk and does not generate interference.

What distance between hosts in a network is considered local?

LAN A LAN is a single site or possibly several sites in close proximity connected by high-speed backbones. WANs are usually thought of as relying on some intermediate network, such as the Internet or phone system, to connect geographically diverse LANs. MANs are an area equivalent to a city or other municipality. It could mean a company with multiple connected networks within the same metropolitan area—so larger than a LAN but smaller than a WAN. ICAAN is the Internet Corporation for Assigned Names and Numbers and is a nonprofit organization responsible for coordinating the maintenance and procedures of several databases related to the namespaces and numerical spaces of the Internet.

Which of these is a reversible connector used on Apple products?

Lightning Apple's iPhone and iPad mobile devices use a proprietary 8-pin Lightning port and connector. The Lightning connector is reversible (can be inserted either way up). The SCSI IDC50 connector is a 50-pin internal connector used with early SCSI devices (SCSI-1 5 MBps 8-bit bus width hardware). Mini-USB is a smaller connector for connection to a device. This type of connector was seen on early digital cameras but is no longer widely used. RG-59 is a coaxial cable that has a thinner core conductor and was used as drop cable for older CATV/cable modem installs and is also used for CCTV cabling.

Which of these is NOT a type of fiber optic connector?

Loopback plug A loopback plug is used to test an Ethernet port. It involves connecting pin 1 to pin 3 and pin 2 to pin 6. Straight tip is a bayonet-style connector that uses a push-and-twist locking mechanism; used mostly for multi-mode networks. A Subscriber Connector is push/pull design allows for simpler insertion and removal than FC. There are simplex and duplex versions, though the duplex version is just two connectors clipped together. It can be used for single- or multi-mode. A Local Connector is a small form factor connector with a tabbed push/pull design. LC is similar to SC but the smaller size allows for higher port density.

You are building a new computer and do not have a lot of room inside the case to add a SSD (solid state drive) hard drive. Which type of modern drive controller would be best to use in the limited space?

M.2 drives An M.2 adapter is considerably smaller than a PCIe adapter used for SSDs so the interface is often used on laptops as well as PC motherboards. Blu-ray Recordable (BD-R) media can be burned one time, much like a CD-ROM and is an external form factor for optical drives. Advanced Host Controller Interface (AHCI) is the logical interface to communicate with the bus for SATA-based drives, such as hard drives and internal optical drives. SATA (Serial ATA) interface is a computer bus interface that connects to mass storage devices such as hard disk drives, optical drives, and solid-state drives.

Which of these is NOT part of a fiber optic strand?

Mesh conductor A mesh conductor is part of a coaxial (coax) cable that serves both as shielding from EMI and as a ground. It is not found in fiber optic cables. The core of an optical fire is an ultra-fine strand of glass that carries the light signals. The cladding is either glass or plastic, and guides the light pulse along the core by bouncing the light signal back into the core. The protective coating around the cladding is called the buffer. This prevents light from entering the cable and also helps to bounce the light signal back into the core.

Which of these was used on early digital cameras but is no longer widely used?

Mini-USB Mini-USB is a smaller connector for connection to a device. This type of connector was seen on early digital cameras but is no longer widely used. RJ-11 connectors are used with 2- or 3-pair UTP or with flat ribbon ""silver satin"" phone cables. Typically only one pair carries the dial tone and voice. BNC (alternately Bayonet-Neill-Concelman, British Naval Connector, or Barrel Nut Connector) connectors are crimped to the ends of Coaxial (or coax) cable. A Molex connector is usually white and has 4 pins plus red, yellow, and black wires and is used to connect older devices to the internal power supply of a computer.

Which of these is an internal power connector?

Molex A Molex connector is usually white and has 4 pins plus red, yellow, and black wires and is used to connect older devices to the internal power supply of a computer. eSATA (External Serial Advanced Technology Attachment) is a standard for the attachment of external drives. The Parallel ATA (PATA) technology is the legacy technology replaced by SATA (Serial Advanced Technology Attachment) to connect the data ports of internal hard drives. RG-6 is a coaxial cable that has a thicker core conductor for better signal quality and is often used as drop/patch cable for modern Cable Access TV (CATV) and broadband cable modems.

Surround sound uses what audio output devices?

Multiple speakers

You are adding a PCI Express-based solid state drive (SSD) to your computer. Which logical interface does the SSD need?

NVME PCIe (Peripheral Component Interconnect Express)-based solid state drives (SSDs) use the Non-Volatile Memory Host Controller Interface Specification (NVMHCI) or NVM Express (NVMe). Advanced Host Controller Interface (AHCI) is the logical interface to communicate with the bus for SATA-based drives, such as hard drives and internal optical drives. SATA (Serial ATA) interface is a computer bus interface that connects to mass storage devices such as hard disk drives, optical drives, and solid-state drives. The Parallel ATA (PATA) technology is the legacy technology replaced by SATA and used to connect hard drives and floppy disk drives.

The Serial Advanced Technology Attachment (SATA) replaced which of these technologies?

PATA The Parallel ATA (PATA) technology is the legacy technology replaced by SATA. SCSI (Small Computer Systems Interface) is another parallel bus where one Host Bus Adapter (HBA) can control multiple devices, attached by internal ribbon cables or external SCSI cables. Serial Attached SCSI (SAS) is a technology very popular in the server market where it offers point-to-point links and none of the termination issues of SCSI. The Advanced Host Controller Interface (AHCI) is the logical interface used by SATA devices to communicate with the host's bus and is not a hardware connection technology.

Which term describes error correction in system memory chips?

Parity checking System memory for most desktops is non-parity; that is, it does not perform error checking. Parity checking is done in Error Checking and Correcting (ECC) memory. Registered (buffered) memory has an extra component that stores address information, taking some load off the memory controller. It does not correct errors in the RAM. Double Data Rate SDRAM (DDR SDRAM) is an updated type of memory where data is transferred twice in one cycle but can be both parity and non-parity memory. Dynamic RAM (DRAM) stores each data bit as an electrical charge within a single bit cell but does not describe the type of error correction present in a memory chip.

You just installed a new hard drive in a computer. After booting the computer, Windows does not assign a drive letter to the hard drive. What do you do?

Partition and format the drive. The drive needs to be partitioned and formatted before Windows will assign a drive letter to it. You use the Computer Management app to do this. Since Windows recognizes the drive, there is no issue with cables. If the cables were bad or not installed correctly, Windows would not see the hard drive. Since you have not completed troubleshooting the problem, you do not know if the drive is defective. Moving the cable connection around or changing out the cables would not solve this issue. The drive is working correctly; the issue is with Windows partitioning the drive.

You are installing hard drives into your new computer and need to have the best drive input/output performance but do not need fault tolerance. Which type of RAID (Redundant Array of Independent Disks) do you need?

RAID 0 RAID 0 (Striping without Parity) spreads the data in a fixed order among all the disks in the array. Its principal advantage is to improve performance but provides no redundancy of data. RAID 1 (Mirroring) duplicates the data disk to a second disk. Each write operation is duplicated on the second disk in the set, introducing a small performance overhead. RAID 5 (Striping with Distributed Parity) writes error checking information across all the disks in the array. All normal write operations suffer reduced performance due to the parity calculation. RAID 1+0 (RAID 10) is a combination of both RAID O and RAID 1 (Mirroring). This configuration offers excellent fault tolerance but carries the same 50% disk overhead that mirroring does.

Which of these would be used on older Cable Access TV (CATV) or Close Circuit (CCTV) cabling?

RG-59 RG-59 is a coaxial cable that has a thinner core conductor and was used as drop cable for older CATV/cable modem installs and is also used for CCTV cabling. RG-6 is a coaxial cable that has a thicker core conductor for better signal quality and is often used as drop/patch cable for modern Cable Access TV (CATV) and broadband cable modems. A RJ-45 (Registered Jack) connector is used with twisted pair cable for Ethernet local area networking products. Twisted pair is a type of copper cabling where pairs of insulated conductors are twisted around one another, to minimize electrical interference. RJ-11 connectors are used with 2- or 3-pair UTP or with flat ribbon "silver satin" phone cables. Typically only one pair carries the dial tone and voice.

Which of these would be used as a drop/patch cable for modern Cable Access TV (CATV)?

RG-6 RG-6 is a coaxial cable that has a thicker core conductor for better signal quality and is often used as drop/patch cable for modern Cable Access TV (CATV) and broadband cable modems. RG-59 is a coaxial cable that has a thinner core conductor and was used as drop cable for older CATV/cable modem installs and is also used for CCTV cabling. Apple's iPhone and iPad mobile devices uses a proprietary 8-pin Lightning port and connector. The Lightning connector is reversible (can be inserted either way up). DB9 is a cheaper 9-pin D-shell (DB-9) male port used by PC manufacturers in place of the DB25 25-pin D-shell connector for serial ports.

Which type of connector is used with telephone cables?

RJ-11 RJ-11 connectors are used with 2- or 3-pair UTP or with flat ribbon ""silver satin"" phone cables. Typically only one pair carries the dial tone and voice. A RJ-45 (Registered Jack) connector is used with twisted pair cable for Ethernet local area networking products. Twisted pair is a type of copper cabling where pairs of insulated conductors are twisted around one another, to minimize electrical interference. BNC (alternately Bayonet-Neill-Concelman, British Naval Connector, or Barrel Nut Connector) connectors are crimped to the ends of Coaxial (or coax) cable. A Molex connector is usually white and has 4 pins plus red, yellow, and black wires and is used to connect older devices to the internal power supply of a computer.

Which type of connector is used with 4-pair (8-wire) cables?

RJ-45 A RJ-45 (Registered Jack) connector is used with twisted pair cable for Ethernet local area networking products. Twisted pair is a type of copper cabling where pairs of insulated conductors are twisted around one another, to minimize electrical interference. RJ-11 connectors are used with 2- or 3-pair UTP or with flat ribbon ""silver satin"" phone cables. Typically only one pair carries the dial tone and voice. BNC (alternately Bayonet-Neill-Concelman, British Naval Connector, or Barrel Nut Connector) connectors are crimped to the ends of Coaxial (or coax) cable. A Molex connector is usually white and has 4 pins plus red, yellow, and black wires and is used to connect older devices to the internal power supply of a computer.

Which of these terms is associated with serial ports?

RS-232 RS-232 (Recommended Standard #232) is the standard for the serial port used on earlier computers and supports data rates up to about 115 Kbps only. BNC (alternately Bayonet-Neill-Concelman, British Naval Connector, or Barrel Nut Connector) connectors are crimped to the ends of Coaxial (or coax) cable. A Molex connector is usually white and has 4 pins plus red, yellow, and black wires and is used to connect older devices to the internal power supply of a computer. The Universal Serial Bus (USB) has become the standard means of connecting peripheral devices to a computer. It is an example of a multipurpose cable that can be used to attach a wide range of peripherals and storage devices.

You are adding a new solid state drive to a laptop. Which hard drive form factor is usually found in laptops?

SATA 2.5 A SSD might be installed to a SATA port where the mechanical HDD fits. This is an easy way to upgrade the 2.5" drive in a laptop, as the device form factor is the same. Blu-ray is a storage format for consumer multimedia, such as music and video, and known as an "optical" drive because a laser reads data from the disc. DVD (Digital Video or Versatile Disc) is a storage format for consumer multimedia, comes in both recordable and re-recordable media, and has a capacity of 4 - 17 Gb. eSATA (External Serial Advanced Technology Attachment) is a standard for the attachment of external drives

Which of these is an older parallel interface used on workstations and servers?

SCSI Older workstations and servers requiring more speed would use the Small Computer Systems Interface (SCSI) bus instead of a serial communication cable. Apple's iPhone and iPad mobile devices use a proprietary 8-pin Lightning port and connector. The Lightning connector is reversible (can be inserted either way up). Intel developed the Thunderbolt (TB) interface for use on Apple workstations and laptops. It connects display devices (like DisplayPort) and peripheral devices (like USB). VESA is an organization largely representing PC graphics adapter and display technology companies. It created the DisplayPort standard for video output.

Which SCSI connector was commonly used by Apple and Iomega devices?

SCSI DB25 The SCSI DB25 connector is a 25-pin connector used primarily by Apple and Iomega (Zip external data storage drives) hardware. The SCSI IDC50 connector is a 50-pin internal connector used with early SCSI devices (SCSI-1 5 MBps 8-bit bus width hardware). The SCSI HD68 connector is a 68-pin connectors used for internal and external ports. These 68-pin adapters support the 16-bit bus width Wide SCSI technology. The SCSI Single Connector Attachment (SCA) connector is an 80-pin connector that incorporates both a power connector and configuration wires, allowing for hot swappable drives.

Which type of memory is specially made for laptops?

SODIMM Small Outline DIMM (SODIMM) is a form of Synchronous Dynamic RAM (SDRAM) used in laptops. This memory stores each data bit as an electrical charge and needs refreshing by an electrical charge. Double Data Rate SDRAM (DDR SDRAM) is an updated type of memory where data is transferred twice in one cycle but is not specially made for laptops. Hard Disk Drives (HDD) are one of the most widely used type of mass storage device, which provides non-volatile storage where the data remains when the power is off. Solid state disks (SSD) uses a type of non-volatile memory technology called flash memory. Flash memory is non-volatile because it does not need a power source to retain information.

Which of these might include both home and residential networks?

SOHO SOHO (Small Office Home Office) is a business-oriented network possibly using a centralized server in addition to client devices and printers. Home and residential networks may also be classed as SOHO. WANs are usually thought of as relying on some intermediate network, such as the Internet or phone system, to connect geographically diverse LANs. MANs are an area equivalent to a city or other municipality. It could mean a company with multiple connected networks within the same metropolitan area—so larger than a LAN but smaller than a WAN. ICAAN is a nonprofit organization responsible for coordinating the maintenance and procedures of several databases related to the namespaces and numerical spaces of the Internet.

Which VGA standard uses a 5:4 aspect ratio?

SXGA (Super XGA) SXGA (Super XGA) is a variant of the XGA standard and has a resolution of 1280x1024 and an aspect ratio of 5:4.HD (High Definition) is a newer standard intended to replace XGA and has a resolution of 1366x768 and an aspect ratio of of 16:9.WXGA (Widescreen XGA) is a variant of the XGA standard and has a resolution of 1280x800 and a widescreen aspect ratio of 16:10.WSXGA is a variant of the XGA standard and has a resolution of 1440x900 and a widescreen aspect ratio of 16:10.

A 64-bit bus channel between the CPU and RAM is called by what term?

Single-channel Single-channel memory means that there is one 64-bit bus between the CPU and RAM. With a dual-channel memory controller there can effectively be two pathways through the bus to the CPU, meaning that 128 bits of data can be transferred per "transaction" rather than 64 bits. Triple channel means there are three 64-bit bus channels between the CPU and RAM. Small Outline DIMM (SODIMM) is a form of Synchronous Dynamic RAM (SDRAM) used in laptops. This memory stores each data bit as an electrical charge and needs refreshing by an electrical charge.

With which type of hardware would you expect to use a USB to Ethernet adapter?

Slimline laptop Some slimline laptops do not have onboard adapters. In this case, you can use a USB to Ethernet adapter. This type of adapter contains the NIC and RJ-45 port in a small housing connected to the computer via a USB port. Most fullsized laptops have a standard RJ-45 Ethernet port build into the chassis along with an Ethernet card. Most desktops have either a fullsized RJ-45 Ethernet port built into the motherboard or have an add-on card containing the Ethernet port and NIC. Most tablets have either a wireless NIC or a cell phone chip built into the hardware and do not need the USB to Ethernet adapter.

What is the main connection difference between USB-C and earlier versions of USB?

The connector is small, flat and reversible USB Type C is a new reversible connector for devices. The connector is reversible, meaning it can be inserted either way up. The connector design is also more secure and robust. This flat connector is the USB Type A connector and typically used for connecting to a host such as a computer. The square beveled-top is the USB Type B and used in connecting to a device such as a printer. The connector and port are square, with a beveled top. The small beveled connector is a Type B Mini or Type B Micro. This type of connector was seen on early digital cameras (Type B Mini) but is no longer widely used.

You recently upgraded an office computer by installing a hard drive. It was a tight fit in the small case as you filled the last available spot with the drive. The user is now complaining the computer randomly shuts down. What could be the issue?

The installed drive is blocking case airflow. Thermal problems are likely to cause symptoms such as spontaneous reboots, blue screens, and lockups. The last drive is probably blocking airflow in the case. Defective hard drives usually cause error beeps during the power on test. A defective drive would not be accessible but would not cause random reboots. If the drive was not connected properly the OS would not be able to access the drive, but it would not cause random reboots. If there is a loose card in the computer, there would be error beeps during power on testing or devices connected to the card would not work. Random reboots are generally not a symptom of loose expansion cards.

You are building a computer from spare parts in the office. You build the computer and realize you have several different types of RAM chips. Which of these is NOT a consideration so you do not have memory errors?

The pin count is the same. DDR comes packaged in 184-pin chips. DDR2 & 3 has 240 pins and is keyed differently. DDR4 has 288 pins. Consequently, you can only install physically compatible chips into the motherboard. SDRAM is synchronized to the system clock. It has a 64-bit data bus and the installed RAM needs to match across the chips. Most SDRAM and DDR RAM modules are configured with 8 or 16 chips. Each chip has a size (or density) of either 64 MB or 32 MB. Chips need to be the same type. The memory controller on the motherboard supports only a given number of ranks. Consequently, DIMM slots may not always support dual rank modules or may only support one dual rank module.

Which chipset passes 192 bits of data per "transaction?"

Triple-channel Triple channel means there are three 64-bit bus channels between the CPU and RAM which can pass 192 bits of data per "transaction." Single-channel memory means that there is one 64-bit bus between the CPU and RAM per "transaction." With a dual-channel memory controller there can effectively be two pathways through the bus to the CPU, meaning that 128 bits of data can be transferred per "transaction" rather than 64 bits. Dynamic RAM (DRAM) stores each data bit as an electrical charge within a single bit cell. This is a type of memory and not a chipset.

A user moves into a new cubicle and reports that they cannot reach the Internet or shared network drives. Everything worked fine in the user's old cubicle. Which one of these tools might you use to troubleshoot the problem?

Tone generator A tone generator and probe tool is used to trace a cable from one end to the other. This is a useful tool that can help identify bad, unknown, or mislabeled Ethernet cables. In this case, the cabling to the cubicle is the problem. A loopback plug is used to test a port. It involves connecting pin 1 to pin 3 and pin 2 to pin 6. A multimeter can be used as a basic cable-testing tool by testing the continuity of copper wires inside the cables. You would use this to identify broken wires. Crimpers are tools to fix a jack to a cable. The wires are laid in the appropriate terminals in the jack, and the crimper tool then closes and seals the jack. If you replaced a cable, you would need this.

Which of these is a connection used to connect peripheral devices to a computer?

USB The Universal Serial Bus (USB) has become the standard means of connecting peripheral devices to a computer. It is an example of a multipurpose cable that can be used to attach a wide range of peripherals and storage devices. RJ-11 connectors are used with 2- or 3-pair UTP or with flat ribbon ""silver satin"" phone cables. Typically only one pair carries the dial tone and voice. RG-6 is a coaxial cable that has a thicker core conductor for better signal quality and is often used as drop/patch cable for modern Cable Access TV (CATV) and broadband cable modems. BNC (alternately Bayonet-Neill-Concelman, British Naval Connector, or Barrel Nut Connector) connectors are crimped to the ends of Coaxial (or coax) cable.

Which USB standard defines a data rate of up to 480Mbps?

USB 2.0 The USB 2.0 (HighSpeed) standard specifies a data rate of 480 Mbps. Note that this bandwidth is shared between all devices attached to the same host. The USB 3.0 standard introduces a SuperSpeed mode. SuperSpeed improves the bus bandwidth tenfold (to 5 Gbps or 5000 Mbps) and makes the link full duplex so a device can send and receive at up to 5 Gbps simultaneously. USB 3.1 defines a SuperSpeed+ mode with a data rate of 10 Gbps and makes the link full duplex. USB 3.2 promises 20 Gbps, but only over USB-C ports and cabling.

Which type of USB cable attaches to a host?

USB-A You use USB Type A to connect to a host. The connector and port are shaped like flat rectangles. USB Type B is for use in connecting to a device such as a printer. The connector and port are square, with a beveled top. There are also small form factor versions of the type B connector and port. USB Type C is a new reversible connector for devices. The connector is reversible, meaning it can be inserted either way up. The connector design is also more secure and robust. USB Type B Micro is a very small connector used to connect to smaller devices like smartphones and tablets. The micro connector is distinctively flatter than the older mini type connector.

The USB 3.0 version is missing which type of connector?

USB-B Mini Type B Mini is smaller connector for connection seen on early digital cameras but is no longer widely used. There is no version of this connector in USB 3.0. The USB Type B Micro is an updated connector for smaller devices, such as smartphones and tablets. The micro connector is distinctively flatter than the older mini type connector. The USB Type A is usually used for connecting to a host such as a computer. The connector and port are shaped like flat rectangles. The USB Type B is used in connecting to a device such as a printer. The connector and port are square, with a beveled top.

Which type of new connector is defined by USB 3.1?

USB-C USB 3.1 defines a new USB-C 24-pin connector type. The connector is reversible, meaning it can be inserted either way up. Mini-USB is a smaller connector for connection to a device. This type of connector was seen on early digital cameras but is no longer widely used. RG-59 is a coaxial cable that has a thinner core conductor and was used as drop cable for older CATV/cable modem installs and is also used for CCTV cabling. Apple's iPhone and iPad mobile devices use a proprietary 8-pin Lightning port and connector. The Lightning connector is reversible (can be inserted either way up).

After you install new hardware into a computer, you need to find the appropriate drivers for the device. Which of these is NOT a way to find the correct driver?

Use a 3rd party website to find the driver. Using a 3rd party website to find a driver on the internet is not a way to ensure you get the correct driver for the hardware as you have no way to validate what you find is correct. Windows connects to Microsoft's servers to find a driver for a device if there is no existing driver on in the installed Windows system. The Windows OS comes with many device drivers. If Windows cannot find a driver during device installation, it will use the Windows Update system. Many devices come with a disk that has the proper drivers. Windows will ask for the driver during device installation or you can update the driver manually after installation.

How would you control mutliple computers with just one keyboard?

Use a Keyboard, Video, Mouse (KVM) device. A Keyboard, Video, Mouse (KVM) switch allows multiple computers (typically servers) to be controlled via a single keyboard, mouse, and monitor. The Trusted Platform Module (TPM) is a chip on the computer motherboard. TPM is a specification for hardware-based storage of digital certificates, keys, hashed passwords, and other user and platform identification information. External hard disks and portable Solid State Devices (SSDs) have become very popular for backup, additional storage and as a means of transferring files but do not control computers. Computers use a Network Interface Card (NIC) to connect an RJ-45 cable to a wired network.

You are installing a new hard drive into an older computer but do not have the correct power connections. How would you solve this issue?

Use a Molex to SATA connector. Older computers used the 4-pin white Molex connections on the power supply to connect to internal drives. Use can use a Molex to SATA connector to provide power to the new hard drive. A USB gender changer would not work, as the power connections do not involve USB connections. Apple's iPhone and iPad mobile devices use a proprietary 8-pin Lightning port and connector. This connector is not applicable to this situation. ESA is an organization largely representing PC graphics adapter and display technology companies. HDMI is a type of video connector and neither applies to this situation.

You are installing a new cable modem in your home and need to connect it to existing cable wiring. What cabling do you use?

Use a RG-6 patch cable. RG-6 is a coaxial cable that has a thicker core conductor for better signal quality and is often used as drop/patch cable for modern Cable Access TV (CATV) and broadband cable modems. RG-59 is a coaxial cable that has a thinner core conductor and was used as drop cable for older CATV/cable modem installs and is also used for CCTV cabling. A RJ-45 (Registered Jack) connector is used with twisted pair cable for Ethernet local area networking products. RJ-11 connectors are used with 2- or 3-pair UTP or with flat ribbon; "silver satin" phone cables. Typically, only one pair carries the dial tone and voice.

Your company wants to buy Android-based tablets to collect data for their sales force. Their tablets need a high-speed connection to transfer data at least 5 Gbps. Which cabling solution do you suggest for the equipment?

Use a USB 3.0 Micro connection. USB Type B Micro is a very small connector used to connect to smaller devices like smartphones and tablets. The USB 3.0 standard specifies speeds of at least 5 Gbps. Apple's iPhone and iPad mobile devices use a proprietary 8-pin Lightning port and connector. This connector is not applicable to this situation. The USB Type B Mini is a smaller connector for connection and seen on early digital cameras. USB 2.0 specifies speeds of 480 Mbps. USB Type B Mini type of connector was seen on early digital cameras but is no longer widely used. The USB 3.0 standard specifies speeds of at least 5 Gbps.

Which of these does NOT relate to a serial port?

VESA VESA is an organization largely representing PC graphics adapter and display technology companies. It created the DisplayPort standard. DB9 is a cheaper 9-pin D-shell (DB-9) male port used by PC manufacturers in place of the DB25 25-pin D-shell connector. DB25 is the specified 25-pin hardware D-shell interface connector in the RS-232 standard. RS-232 (Recommended Standard #232) is the standard for the serial port used on earlier computers and supports data rates up to about 115 Kbps only. Serial ports are generally associated with connecting external modems, used to establish dial-up Internet connections.

IBM created which of these video connections?

VGA The 15-pin Video Graphics Array (VGA) port (HD15F/DE-15) is a legacy analog video interface for PC devices invented by IBM. Many graphics adapters and display screens continue to support it. The Digital Visual Interface (DVI) is a high quality digital interface designed for flat-panel display equipment. The High Definition Multimedia Interface (HDMI) is the most widely used graphic device interface. It is ubiquitous on consumer electronics, such as televisions and Blu-Ray players. DisplayPort was developed by VESA, the organization largely representing PC graphics adapter and display technology companies. It is a royalty-free standard intended to "complement" HDMI.

You upgraded the memory in your desktop computer by replacing two chips with one larger chip and now have memory errors. What could be the issue?

Your motherboard needs both banks in a channel to have a chip installed. Most motherboards have multiple memory channels and specify how they need to be filled with chips, usually with pairs of chips. In this case, you need to install another chip to fill the channel. Your motherboard worked with no issues before you installed the new chips. You would not expect the motherboard to be defective. If the pin count of the chip does not match the pin count on the motherboard, you would not be able to physically install the chip. SODIMMs are a type of memory found in laptops. You would not be able to install this type into your desktop, so this is not the problem.

Which of these is a standard for attaching external drives?

eSATA eSATA (External Serial Advanced Technology Attachment) is a standard for the attachment of external drives. You must use an eSATA cable to connect to an external eSATA port; you cannot use an internal SATA cable. The Parallel ATA (PATA) technology is the legacy technology replaced by SATA (Serial Advanced Technology Attachment). Intel developed the Thunderbolt (TB) interface for use on Apple workstations and laptops. It connects display devices (like DisplayPort) and peripheral devices (like USB). BNC (alternately Bayonet-Neill-Concelman, British Naval Connector, or Barrel Nut Connector) connectors are crimped to the ends of Coaxial (or coax) cable.

You have an old Olympus digital camera and want to expand its external storage. What type of flash card would you expect to need?

xD xD was a format used on Olympus cameras but has been discontinued. Compact Flash (CF) was a very large card, bigger than a SD card, and had speeds rated the same as CDs and could support 512 GB though no cards larger than 256 GB were made. Secure Digital (SD) Card is a full-size type of memory card, used extensively in consumer digital imaging products but is smaller in size than the Compact Flash cards. Mini-SD is a smaller version of the SD card, using the same capacity and speed designations.