Comptia A+

AMR

(Audio Modem Riser) (Legacy) Attaches to the motherboard to allow additional cards to be installed

Speeds of 1) SATA1 2) SATA2 3) SATA3

1) 1.5 Gbps (150 MBps) 2) 3 Gbps (300 MBps) 3) 6 Gbps (600 MBps)

What is the storage capacity of a triple-layer Blu-ray Disc?

100GB

A dedicated bus type used by dedicated video cards.

AGP

What is ARP?

Address Resolution Protocol. Matches device IP address to it's MAC address.

DAC

Digital to Analog Converter

What was Blu-ray Disc originally designed for?

High definition video

What does the watt rating signify?

How much power can be supplied to various devices

Which of the following bus card slot types is PRIMARILY used for dedicated video cards? answer PCI-X PCIe X1 CNR Correct Answer: PCIe X16

PCIe x16 slots are primarily used for dedicated video cards. PCIe x1 slots are typically used for network cards, USB cards, and sound cards. PCI-X slots are usually found only in server systems and are used for high-speed networking and fast hard drives. CNR (communications network riser) is a riser card slot that allows for installing network, sound, or modem functions.

What TCP/IP protocols are used to retrieve emails from a server?

POP3 and IMAP

Used in unshielded twisted-pair (UTP) cabling

RJ-45

EEPROM Chips

ROM Chips that replaced CMOS Chips Non-volatile memory technology for saving system settings when the computer is powered off.

What does CMOS do?

Saves information about system devices

When is a forward proxy server used?

When you want to manage traffic coming from EXTERNAL sources to the network

You have a CD-RW drive that advertises speeds of 32x/12x/48x. What is the read speed of the drive?

Write/Rewrite/Read. 48x

CD-RW

compact disc-rewritable, has 650 MB capacity

DVD-RW

digital video disc-rewritable

What does a multimeter test?

electrical properties; voltage, amps, resistance

Where do you create a memory dump file for when window's crashes?

the system volume

What is the loopback address?

127.0.0.1

What is the storage capacity of a quadruple-layer Blu-ray Disc?

128GB

How many pins does a dot matrix printer use to print a line of text on a page?

132

What is the APIPA range?

169.254.0.1 - 169.254.255.254

What sampling rate is normally used for radio-quality?

22 kHz

What is the storage capacity of a single-layer Blu-ray Disc?

25GB

What sampling rate is normally used for CD-quality?

44 kHz

What sampling rate is normally used for digital TV and DVD movies?

48 kHz

What is the storage capacity of a dual-layer Blu-ray Disc?

50GB

What sampling rate is normally used for DVD-quality?

96 kHz

What does the Trusted Platform Module (TPM) do?

A Trusted Platform Module (TPM) is a hardware cryptoprocessor that resides on the motherboard that stores and generates cryptographic keys. Using these keys, the TPM can generate a hash value based on the components installed in the system. The hash value can be used to verify that system components have not been modified when the system boots. Because each system will have a unique hash value, the hash can also be used as a form of system identification. Keys generated by the TPM can be used for encryption and authentication, but the TPM does not perform the actual encryption.

Molex

A common power connector included with internal power supplies. It provides 5 V and 12 VDC to different devices, such as Parallel Advanced Technology Attachment (PATA) disk drives.

What type of connection does each PCI Express (PCIe) bus slot use?

A point-to-point dedicated connection.

SAS

A point-to-point interface typically found in enterprise-level storage systems, like RAID and tape drives.

L2 Cache

A type of memory cache that is slightly slower than L1 cache, but has a much larger capacity, ranging from 64 KB to 16 MB.

IDE

An older technology where the cable connects to the motherboard and two devices.

What is ASIC

Application Specific Integrated Circuit,

What does Developing Roller do?

Applies toner to the drum in a Laser Printer, allowing the toner to stick to the charged areas on the drum

What is ADF? What does it allow you to do?

Automatic Document Feeder Is an accessory that allows scanning of a stack of documents automatically

What is APIPA?

Automatic Private IP Addressing (APIPA)

What is the abbreviation for Blu-ray Disc?

BD

Blu-ray Disc-Recordable

BD-RE

Where is a reverse proxy server used?

Between INTERNAL servers and client machines to monitor traffic

L1 Cache

Cache used by a CPU for short-term storage of data and instructions. It is the fastest and closest to the CPU.

RCA

Can be used for both digital and analog sounds using S/PDIF

What does Transfer Roller do?

Charges the PAPER to attract the toner in a laser printer

What is the 8-pin EPS 12V?

Connector that provides four lines of 12V power to multi-core CPU's. Used for modern multi-core CPU's that need more power

What action occurs during the Driver Execution Environment (DXE) stage of UEFI boot process?

Device drivers are loaded into memory and the EFI boot manager initializes during the DXE stage, which comes after the PEI stage.

What is DCS

Distributed Control System. Customized "All In One" package that contains the needed PLCS, SCADA controller, and HMI.

What port does DNS use?

Domain Name System 53

What does DMARC do?

Domain based Message Authentication, Reporting, and Conformance (DMARC) Verifies the email sender Tells the recipient what to do if no authentication method passes Allows feedback to the sender about messages that pass or fail authentication Combines protections of both DKIM and SPF

What is the role of DKIM in email security?

DomainKeys Identified Mail (DKIM) verifies that the email was sent from the domain it claims to be from, protecting against spoofing.

What action occurs during the Pre-EFI Initialization (PEI) stage of UEFI boot process?

During the PEI stage of the UEFI boot process, the CPU and chipset are verified and fully initialized, and system memory is initialized, verified, and allocated.

What keeps track of various devices and ensures that the software is safe?

Endpoint Management Server

What are the printer languages?

Escape Codes PostScript PCL- Printer Control/Command Language

CD- what was it made for

First developed to store digital music. Later, it was adapted to store digital computer data. Can hold 737MB

What is HMI

Human-Machine Interface (HMI). Touchscreen control panel or software on a normal computer system. Allows operator to make configuration changes in the system.

What is installed between the back side of the system case and the motherboard's ports?

I/O Shield aka Faceplate protects from dust and debris

Which of the following are the three types of system resources that are USUALLY assigned automatically?

I/O address, IRQ, DMA channel

SATA

Interface for connecting storage devices like hard disks. Serial Advanced Technology Attachment

What does ICMP stand for and is it used for email authentication?

Internet Control Message Protocol (ICMP) is used for network diagnostics, such as pinging devices.

What does IPS stand for and do?

Intrusion Prevention System (IPS) monitors all network traffic, looking for anything out of the ordinary. When malicious or suspicious packets are detected, the IPS blocks the packets and notifies the network security team so further action can be taken.

Which algorithm is used by an Application layer load balancer?

Least Pending Request

What can be used to test serial and parallel ports?

Loop-back plug They allow output signal to be returned as input

What does the Forward Lookup zone do?

Matches the hostname to the IP address

What does an Ammeter do?

Measures the flow of electric current in a circuit

What form factor does not have expansion slots on the motherboard, but instead uses rise card for expansion cards?

NLX

What devices are typically used with PCI Express (PCIe)?

Network cards, USB cards, and sound cards.

What is the most common type of capture card?

OBS-Open Broadcasting Software

What expansion buses is most commonly used for devices such as sound cards, modems, and network cards?

PCI

What expansion buses uses a point-to-point dedicated connection and provides a serial full-duplex method of transmission?

PCIe PCIe was made to replace PCI, PCI-X, and AGP

Peripheral Component Interconnect (PCI)

Peripheral Component Interconnect (PCI)

What action occurs during the Security (SEC) stage of UEFI boot process?

Power is supplied to the CPU during the Security (SEC) stage, which comes before the PEI stage.

What part of the IPv6 Address is the Prefix, Subnet mask, and interface ID?

Prefix-First 4 quartet Subnet Mask- Last quartet in Prefix Interface ID- Last 4 quartet

What does the primary corona do?

Prepares the photosensitive drum for writing, by causing the drum to receive negative (-) electrostatic charge

What is the software that allows the printer to communicate with the print device?

Print Driver

What is the connection point for the print device to connect to a print server?

Print Port

What is the software process that sends print jobs to the print device?

Print Server

What is the software process that captures print jobs from applications, places them in the print queue, and then sends each print job to the print device? Also referred to as managing the printing process.

Print Spooler

What is PLC?

Programmable Logic Controller. Specialized controller that can be programmed to perform specific tasks.

What type of cards are attached to the motherboard and allow additional cards to be installed?

Risers

What does SecureBoot do?

SecureBoot requires the operating system on the hard drive to be digitally signed. This can prevent you from loading Linux and other non-signed OS

What is the purpose of SPF?

Sender Policy Framework (SPF) creates a record in the sender's DNS server to verify the sender's IP address. It helps prevent email spoofing

What is SMB and what is it used for?

Server Message Block Used by windows systems to access shared resources over a network

DVD- what was it made for?

Single Sided-4.7GB, Dual-Layer- 8.5 GB

S/PDIF

Sony/Phillips Digital Interface; digital audio output

What is Modbus?

Special network protocol that controller systems use to communicate with each other. Originally worked over serial interface. Now can work over Ethernet and TCP/IP

What is SCADA?

Supervisory Control And Data Acquisition. Monitor and control PLC systems. Adjust system based on data acquired by sensors.

Peripheral Component Interconnect (PCI)

The CPU and bus can process concurrently. Replaced ISA and VESA bus standards.

What is the BEST describes the purpose of the north bridge chipset?

The chip that controls the PCI bus. The north bridge is the chip that connects a CPU to memory, the PCI bus, Level 2 cache, and AGP activities. The north bridge chip sits near the CPU and communicates with the CPU through the front-side bus (FSB).

L3 Cache

The largest class of cache memory traditionally found on the motherboard. L3 cache is commonly shared among all cores in a multi-core processor.

What are requirements for your system to use EDB?

The operating system must support EDB. The processor must be EDB-capable.

Which term refers to the portion of the hard drive where print jobs are stored before going to the print device?

The print queue

What do data rates in PCI Express (PCIe) depend on?

The protocol version and number of transmission lines.

What BEST describes the south bridge chipset?

The south bridge is the chip that controls all of a computer's I/O functions; such as USB, audio, the system BIOS, the ISA bus, the interrupt controller, and the IDE channels. In other words, this chip controls all of the functions of a processor except memory, PCI, and AGP.

How much does dual-channel memory systems increase bandwidth?

Theoretically-Double Reality- 5-15%

What is an upgrade to the SO-DIMM standard?

UniDIMM

You work as the IT administrator for a small corporate network. One of the company employees needs to add an additional PCI card to the motherboard. When you open the computer, you see that the card that you purchased does not fit due to the card's height. Which of the following is the BEST method for using the newly purchased card?

Use a riser card to allow the new card to be installed parallel to the motherboard.

SCSI

Usually found only in high-end servers, mainframe computers, and RAID storage devices.

What are the common digital audio file types

WAV- Waveform Audio File Format AIFF- Audio Interchange File Format WMA- Windows Media Audio

What is the formula for wattage?

Wattage = Voltage x Amps