COMPUTER HARDWARE FUNDAMENTALS PRACTICE

POST

A series of system checks performed by the system BIOS/UEFI and other high-end components, such as the SCSI BIOS and the video BIOS, known collectively as option ROMs

Bluetooth

A type of device that have classically been computer and communication peripherals: Keyboards, Mics, headsets and printers

topology

A way of physically laying out the network

A laptop has 1GB of installed memory and uses shared video memory. If the video card is using 256MB, how much is left for the rest of the system?

768MB

Your company is currently using a 5 GHz wireless security system, so your boss has asked you to install a 2.4 GHz wireless network to use for the company's computer network to prevent interference. Which of the following can NOT be installed to provide a 2.4 GHz wireless network?

802.11ac

A technician is going to set up a Wi-Fi network using standard omnidirectional antennae. Because of the building configuration, transmitting signals for the greatest distance is the technician's primary criterion. Which standard should they choose?

802.11n

What are the dimensions of a MicroATX motherboard?

9.6" x 9.6"

Chipset

A collection of chips or circuits that perform interface and peripheral functions for the processor

piconet

A dynamically created network in Bluetooth

A technician needs to upgrade the RAM in a database server. The server's memory must support maintaining the highest levels of integrity. Which of the following type of RAM should the technician install?

ECC

Identify the cable connector in the picture. It is threaded and screws into place.

F-connector

A PC Power Supply Unit (PSU) can accept the voltage of 110-120 VAC (Volts of Alternating Current), or 220-240 VAC. PSU's operation can be adjusted to the supplied voltage either with the use of a manual selector switch on the back of the device or automatically by the device. PSUs equipped with manual selector switch are referred to as auto-switching PSUs, PSUs offering automatic voltage adjustment are known as fixed-input devices.

False

Due to the compact nature of laptop devices, a GPU on a laptop always comes in the form of CPU-integrated graphics.

False

Due to the compact nature of laptop devices, all laptop GPUs come in the form of CPU-integrated graphics.

False

You are troubleshooting a workstation with four identical memory sticks installed, one in each of the slots labeled 1, 2, 3, and 4. The motherboard has a marking near the memory slots that says, "quad-channel support." Based on what you observe, how many channels are being used by the motherboard's memory?

Four channels

Which of the following units is used to measure the speed of modern CPUs?

GHz

Which of the following describes the IP address of a router to which packets destined for a remote network should be sent by default?

Gateway

Which of the following is the highest quality digital video standard, which also supports digital audio and device control?

HDMI

A network engineer is designing an 802.11g wireless network that uses three wireless access points for complete coverage. Which of the following channel selections would result in the LEAST amount of interference between each access point?

Adjacent access points should be assigned channels 1, 6, and 11 with a 20MHz channel width

Cache

Another type of physical memory common in PC's that is small and fast, and logically sits between the CPU and RAM

___________ is an all-digital technology that advances the work of DVI to include the same dual-link resolutions using a standard HDMI cable but with higher motion-picture frame rates and digital audio right on the same connector.

High-Definition Multimedia Interface (HDMI)

A type of technology that splits a single CPU core into two virtual cores that can be used simultaneously by an OS is called:

Hyper-threading

A computer technician is building a server that will run multiple virtual machines simultaneously. Which CPU technology should be selected so that the processor can utilize two logical cores

Hyperthreading

Which TCP/IP Internet layer protocol is responsible for delivering error messages if communication between two computers fails?

ICMP

Which of the following is a dedicated device designed to supply power to PoE equipment?

Injector

Which of the following is required to take advantage of the performance benefits offered by the multi-channel memory architecture? (Select all that apply)

Installing modules in appropriate memory slots (slots of matching color) on the motherboard, Installing memory modules of the same capacity, Installing memory modules of matching types, Installing memory modules of matching speeds

router

Instead of using switches and hubs, wireless networks use either a wireless access point (WAP) or a wireless ______ to provide central connectivity.

Which option would you MOST likely use to configure PXE to set up remote imaging on a computer during a deployment?

BIOS boot option

You are installing a new computer, and the user wants to use virtualization. Which hardware components need to support virtual technology for this to work properly? (Choose two.)

BIOS, CPU

Which LCD component is responsible for providing brightness?

Backlight

Which type of server gives host computers IP configuration information?

DHCP

Which type of memory allows for permanent data storage?

DVD-RAM

Which of the following is NOT a valid DVI standard?

DVI-A dual link

Which of the following cloud services should an organization choose in order to deliver virtual desktops to end-users over the Internet on a per-user license basis?

DaaS

Which of the following describe characteristics of DSL modems? (Select 3 answers)

Dedicated bandwidth, Telephone lines, Twisted-pair copper cabling

Which of the following answers refer to the characteristic features of a dedicated server motherboard? (Select 3 answers)

Designed for limited space (rack-mount / blade), Utilizes more than one CPU (Multisocket motherboard), Offers support for ECC RAM

You work as a PC Technician for a small company. The company has decided to use laptops instead of desktops in the office so that the employees can easily take their laptops with them when they leave to preform at trade shows. You want an easy solution for the employees to quickly connect an external monitor, keyboard, mouse, and a wired network connection, Unfortunately, the employees' laptops don't have a built-in wired network connection. Which type of device should you choose to provide all the functionality above?

Docking station

Which of the following are characteristics of the type of RAM most commonly used as the main system memory in desktop PCs? (Select 2 answers)

Dynamic RAM, Non-ECC memory

Which of the following is a proprietary connector type that features a symmetrical/reversible connector plug?

Lightning

What is the name of a proprietary connector type used by Apple mobile devices?

Lightning connector

You are building a bitcoin mining workstation that will have multiple graphics cards, lots of memory, and an octa-core processor. This computer is expected to generate a lot of heat during its operations. Which of the following solutions would MOST efficiently dissipate all of the heat produced?

Liquid cooling system

Which of the following types of network switches allows an administrator to configure advanced networking and security features?

Managed switch

Which of the following answers describe features of the IEEE 802.11ac wireless standard? (Select 3 answers)

Maximum data signaling rate of up to 6.77 Gbps, Multi-User Multiple Input / Multiple Output (MU-MIMO), 5.0 GHz frequency band

Which feature of clouds do cloud providers use to appropriately charge clients?

Metered service

Which memory type can provide a CPU with the fastest access to frequently used data?

Multi-level cache

Which of the following technologies would allow your laptop to share content with a mobile device wirelessly using touchless transfer?

NFC

Which of the following types of networking hardware is installed in a computer or server to connect to an ethernet switch using a CAT 6 cable?

Network interface card

Certain types of RAM use an additional bit in order to detect whether a data error has occurred. This extra bit is used to store information about how many bits are set to a value of 1 in a given string of data (typically one byte). Examining the value of this additional bit at different stages of processing allows to detect whether the data has been corrupted. What is the name of this extra bit?

Parity bit

A type of twisted-pair copper cable used for connecting workstations to network devices is known as: (Select 2 answers)

Patch cable, Straight-through cable

well-known

Ports 0 though 1023 and are assigned to commonly used services

Samantha works in the human resource department in an open floorplan office. She is concerned about the possibility of someone conducting shoulder surfing to read sensitive information from employee files while accessing them on her computer. Which of the following physical security measures should she implement to protect against this threat?

Privacy screen

What RAID level requires at least three hard disks to operate?

RAID 5

What coaxial cable standard is used for digital cable television?

RG-6

A CPU design based on an instruction set that tries to improve speed by utilizing relatively few simple instructions is referred to as:

RISC

An ARM CPU is based on the _____ type of architecture.

RISC

____________ is defined by how many software picture elements (pixels) are used to draw the screen.

Resolution

Which of the following virtualization concepts refers to a VM's ability to have memory allocated for its use?

Resource pooling

What devices transfer packets across multiple networks and use tables to store network addresses to determine the best destination?

Routers

The SMTP protocol is used for: (Select 2 answers)

Sending email messages between mail servers, Sending email messages from a client device

Installing USB ports on the front panel of a computer case requires plugging their internal USB connector into a compatible USB header on a motherboard.

True

Motherboards used in laptops and mobile devices can be characterized by their proprietary design, which means that installing a new motherboard in such devices most often requires replacement part designed for specific make and model of the given device.

True

Placing a notch on a RAM module contact surface allows the module to be properly aligned with a memory bank on the motherboard and prevents the installation of incompatible memory types.

True

The DVI-I cabling supports both digital and analog video signal transmissions.

True

The installation of USB ports located on the front panel of a computer case requires plugging in internal USB cable connectors into compatible groupings of metal pins (a.k.a. headers) on the motherboard.

True

The term "Hot swapping" refers to the ability to replace computer system components without interrupting system operations.

True

The term "Non-Modular power supply" refers to a PSU equipped with fixed cables.

True

Which type of hypervisor is also called a bare metal hypervisor?

Type 1

A customer tried to install a PCIe x8 expansion card into a PCIe x16 slot on the motherboard. While the expansion card fits into the slot without any issues, it does not perform as the customer expected. How fast will a PCIe x8 expansion card run if installed in a PCIe x16 slot?

The card will run at x8 speed

What is the name of the unit that can provide emergency power during an unexpected main power source outage for a short-term?

UPS

Which of the following types of USB connections can support data rates of up to 480 Mbps?

USB 2.0

What is the lowest grade of cable required to run 100BaseT?

UTP Cat 5

Which type of IPv6 address identifies a single node on the network?

Unicast

The most common hard drive connector used today is ___________.

Universal Serial Bus (USB)

__________ cables are used to connect a wide variety of peripherals, such as keyboards, mice, digital cameras, printers, scanners, hard drives, and network cards, to computers.

Universal Serial Bus (USB)

CPU Heat Sinks

Use tubing to transfer heat away from the CPU

ROM

Used to store the computer's BIOS because this information normally doesn't change often

You are connecting a laptop to a brand new digital high definition TV. Unfortunately, the laptop is a little outdated and only has an analog VGA display output. Which of the following adapters could you use to convert the signal from analog to digital for use with the new television?

VGA to HDMI

The ___________ connector was the de facto video standard for computers for years and is still in use today.

Video Graphics Array (VGA)

storage area network

a network segment, or collection of servers, that exists solely to store and manage data.

SNMP

a protocol originally developed by IBM but then enhanced by Microsoft, IBM, Intel, and others. It's used to provide shared access to files, printers, and other network resources and is primarily implemented by Microsoft systems.

Liquid Cooling

a technology whereby a special water block is used to conduct heat away from the processor (as well as from the chipset)

international mobile sub

a unique 15-digit identifier that describes a specific mobile user and their network

personal area network (PAN)

a very small-scale network designed around one person within a very limited boundary area

biometrics

a way of unlocking a device using a physical body part or facial recognition

Asynchronous DRAM

independent from the CPU's external clock

An ______ device is one that transfers information from outside the computer system to an internal storage location, such as system RAM, video RAM, flash memory, or disk storage.

input

An ___________ card is often used as a catchall phrase for any expansion card that enhances the system, allowing it to interface with devices that offer input to the system, output from the system, or both.

input/output

Which of the following is NOT considered part of the Internet of Thing

laptop

PC monitors today are generally based on some form of __________ technology.

liquid crystal display (LCD)

proxy server

makes requests for resources on behalf of a client

subscriber indentification module (SIM)

manages all data transfers between the phone and the SIM chip, which is a small memory chip that stores user account information, phone identification, and security data, and it is generally tied to a specific carrier.

migration

moving the users data from the old drive to the new one

Synchronous DRAM

shares a common clock signal with the computer's system-bus clock, which provides the common signal that all local-bus components use for each step that they perform

software as a service (SaaS)

the highest level of service that handles the task of managing software and its deployment, and includes the platform and infrastructure as well

802.11ax

the technical specification of the newest version of wifi that was released in 2019 and also known as wifi 6

Capacitive

touch screens that use electrical conductivity, which makes the human finger the perfect stylus

A _____ is the expansion card that you put into a computer to allow the computer to present information on some kind of display, typically a monitor or a projector

video card

tethering

when you connect a device to a mobile hotspot`

Which of the following is a proprietary flash memory card format used mainly in older digital cameras?

xD

What is the peak transfer rate of a DDR3-1600 module?

12800 MB/s

What is the most popular video aspect ratio for computer monitors?

16:9

Which of the following is an example of a valid IPv6 address?

192:168:1:55

Which two of the following are possible pin counts for SODIMM modules? (Pick 2)

204, 262

Which of the following TCP ports does Telnet use?

23

You connect a VOIP device on a user's desk and need to connect it to a PoE-enabled switch located in a communications closet about 150 feet (approximately 50 meters) away. Which of the following cables should you select to connect the VOIP device to the switch?

CAT 6

ECC type RAM:

Can detect and correct errors

______, created in collaboration between Intel and Apple and released in 2011, combines PCI Express 2.0 x4 with the DisplayPort 1.x technology.

Thunderbolt

What is the capacity of a single layer of DVD-based optical media?

4.7GB

Which of the following answers describe Double Data Rate 3 Synchronous Dynamic Random-Access Memory (DDR3 SDRAM)? (Select 3 answers)

1 notch on the module contact surface, Reads/writes 8 words of data per clock cycle, 240 contact pins

What kind of memory modules include registers between the system's memory controller and the module's memory chips, registers that communicate in series with the memory controller and in parallel with the memory chips, easing the electrical strain on the memory controller?

Buffered

What is the term applied collectively to the Northbridge and Southbridge?

Chipset

SRAM

Classically used for cache memory

Which of the following is an equivalent term to allocation units, as they relate to hard drive technology?

Cluster

Which of the following terms refers to upgrading the firmware that the BIOS comprises?

Flashing

Linda wants to reduce the number of monitors, keyboards, and mice required to control the multiple servers she manages in the data center. Which of the following devices should she install to allow a single keyboard or mouse to control multiple systems?

KVM

Which of the following is the industry name of DDR3-1333 modules?

PC3-10600

What type of expansion bus technology uses lanes with point-to-point communication paths between two components on the motherboard?

PCIe

Which of the following is a process run by the BIOS at bootup?

POST

A cloud computing service model offering remote access to applications based on a monthly or annual subscription fee is called:

SaaS

Which drive-interface technology supports a bit rate of 6Gbps?

SATA3

Despite being smaller and less capable than SSDs, which of the following flash-memory formats can be used as a built-in storage solution?

SD

MicroDIMM

SODIMM

Tim's laptop was recently upgraded to Windows 11 but is now running more slowly due to the increased memory requirements. He has decided to install some additional RAM to speed up the laptop. Which of the following should he install?

SODIMM

Open Systems Interconnection (OSI)

The International Organization for Standardization (ISO) published this model in 1984 to provide a common way of describing network protocols.

Clock Frequency

The speed of the processor

Which of the following allows multiple operating systems to work on the same hardware simultaneously?

Virtualization

virtualization

a cloud computing concept where there isn't a one-to-one relationship between a physical server and logical server

Secure Shell

a connection-oriented protocol that can be used to set up a secure Telnet session for remote logins or for remotely executing programs and transferring files.