B.2.3 CompTIA A+ 220-1101 (Core 1) Domain 3: Hardware

Which of the following are optical storage devices? (Select three.) CD USB flash drive HDD DVD SDHC SSD BD

1. CD 2. DVD 3. BD

What are the advantages of DDR4 over DDR3, assuming the same operating frequency? (Select two.) DDR4 includes a buffer between the data bus and the memory. DDR4 uses less power than DDR3. DDR4 doubles the data transfer rate of DDR3. DDR4 accepts sixteen consecutive 64-bit words per bus clock cycle. DDR4 accepts four consecutive 64-bit words per bus clock cycle.

1. DDR4 uses less power than DDR3. 2. DDR4 doubles the data transfer rate of DDR3.

You want to enable the Execute Disable Bit (EDB) setting in your BIOS/UEFI to help reduce your system's exposure to viruses and malicious code. Which of the following are requirements for your system to use EDB? (Select two.) The processor must be EDB-capable. The bus on the motherboard must support EDB. Memory (RAM) must be EDB-capable. The motherboard must support EDB. The operating system must support EDB.

1. The processor must be EDB-capable. 2. The operating system must support EDB.

How many pins does a line matrix printer use to print a line of text on a page of paper? 48 132 9 162

132

You have a CD-RW drive that advertises speeds of 32x/12x/48x. What is the read speed of the drive? 12x 32x Depends on the manufacturer's speed designation standards 48x

48x

You work as the IT administrator for a small corporate network. Sam, an employee in the support department, wants to run a virtual machine on his computer for troubleshooting customer issues, and he needs a very stable computer from which to work. You need to decide whether to install buffered or non-buffered RAM in his computer. Which of the following BEST describes the reason to choose buffered instead of unbuffered memory for this new computer? Buffered memory increases the load on the memory controller, but is faster and more stable. Buffered memory reduces the load on the memory controller and allows the system to be more stable. Buffered memory is faster and less expensive. Buffered memory reduces the load on the memory controller, but due to the extra clock cycle, is less stable.

Buffered memory reduces the load on the memory controller and allows the system to be more stable.

You want to improve the performance of your virtual memory in Windows. Which of the following is a step you can take to do this? Reboot your system. Install a larger CPU. Configure the paging file to be divided between two drives. Configure the paging file to have an initial size of one half the physical RAM.

Configure the paging file to be divided between two drives.

You want to create a software RAID 1 array on your Windows 11 workstation using Disk 1 and Disk 2. What do you need to do with Disk 1 and Disk 2 before configuring them for a RAID 1 array? Convert the disks from dynamic to basic. Verify that both disks are the same size. Convert the disks from basic to dynamic. Format both disks with the same file system.

Convert the disks from basic to dynamic.

Which component is responsible for converting digital audio into sound that can be played on speakers? MP3 DAC THX ADC

DAC

As an IT technician, you are aware of data privacy issues when sharing or using public devices. Which of the following is the BEST advice for making it difficult for anyone to gain access to your information? Enable login notifications or approvals for your services and accounts. Follow 802.11 standards to create a wireless network for anyone accessing your network. Configure a built-in print server to manage print documents for clients on shared devices. Ensure that the host computer is turned on and connected so that it is accessible to be shared.

Enable login notifications or approvals for your services and accounts.

Your server runs in quadruple-channel memory mode. How many memory controllers are being used? One Four Two Eight

Four

You are configuring a new system, and you want to use a RAID 0 array for the operating system using SATA disks and a special controller card that includes a RAID processor. Which RAID method should you use? Hardware Software Operating system JBOD

Hardware

Which of the following features BEST allows a single processor to run two threads in parallel instead of processing single threads linearly when using Intel chips? Hyper-threading Overclocking Dual core Multi-processing

Hyper-threading

Which of the following is the ONLY type of printer that can print multi-part forms that use carbon paper? Thermal printer Impact printer Inkjet printer Laser printer

Impact printer

A landscaping company's employees receive payment for their services using a credit card reader that physically attaches to an Apple mobile device. Which of the following connection types is being used? Bluetooth Lightning NFC IR

Lightning

Which component in a laser printer prepares the photosensitive drum for writing by causing the drum to receive a negative electrostatic charge? Organic photoconductor (OPC) drum Transfer corona Primary corona Fuser

Primary corona

Which of the following components are included in an Inkjet printer all-in-one ink cartridge? Printhead, circuitry, and an ink tank Rollers, nozzles, and an ink tank All four colors of ink Belt, carriage, and a printhead

Printhead, circuitry, and an ink tank

You are looking at a TRS connector on a computer. Which device MOST likely uses this connector? Keyboard Speaker Monitor Joystick

Speaker

You have an older dot matrix printer that uses a cloth reusable printer ribbon that is fed by two spools. Which of the following is an advantage of upgrading to a dox matrix printer that uses a ribbon cartridge? The printer would use 48 pins for higher resolution. The printer would include a tractor feed component. The ribbon cartridge lasts longer. The cartridge is easily replaceable.

The cartridge is easily replaceable.

Which security measure generates and stores cryptographic keys? DriveLock BIOS/UEFI password Chassis intrusion detection Trusted Platform Module (TPM)

Trusted Platform Module (TPM)