IT Foundations (CompTIA A+)

Question 1

What will cause incorrect system dates and loss of bios settings

Answer 1

dying CMOS battery

Question 2

what manages I/O interfaces for the computer such as PCI, PCIe, USB, serial, and IDE?

Answer 2

Southbridge chip

Question 3

this was developed to replace PC Card PCMCIA and is used in laptops - provides additional connection ports for PCs

Answer 3

ExpressCard

Question 4

Resides on the motherboard and is brown in color, used for connecting a video card to a computer

Answer 4

AGP slot

Question 5

this CPU component performs arithmetic and logic operations

Answer 5

arithmetic logic unit

Question 6

this CPU component fetches instructions from memory, decodes, and executes them

Answer 6

control unit

Question 7

a UEFI feature that verifies an operating system’s boot loader is electronically signed by the vendor before it loads

Answer 7

secure boot

Question 8

an international standard designed to secure hardware by integrating encryption keys into devices. Use RSA keys for hardware authentication and used by DoD

Answer 8

Trusted Platform Module

Question 9

allows the operating system to control the amount of power given to each device and to power them down when not in use

Answer 9

Advanced Configuration Power Interface

Question 10

enables the computer to discover and configure new hardware, and manage any hardware conflicts that arise when new hardware is added.

Answer 10

PnP

Question 11

The computer accesses these while the firmware is in control of computer

Answer 11

boot services

Question 12

The computer accesses these while the OS is in control of computer

Answer 12

runtime services

Question 13

through what does the RAM connect to Northbridge or CPU itself?

Answer 13

memory controller on the chip and the memory bus on the motherboard

Question 14

have additional circuits that hold data and manage electrical signals before the information is passed between RAM and the memory controller

Answer 14

buffered DIMMs

Question 15

based on the memory bus’ clock signal to synchronize thwith the system bus clock speed

Answer 15

Double Data Rate memory

Question 16

which is smaller DIMM or SODIMM

Answer 16

SODIMM

Question 17

How to calculate DDR transfer rates

Answer 17

DDR-1234 * 8 (multiply by 8)

Question 18

A process that allows to rewrite the information stored on the chip, instead of having to physically replace the chip.

Answer 18

Flashing

Question 19

performs management functions such as specifying the memory’s clock signal

Answer 19

control bus

Question 20

a physical interface standard that you can use to connect up to 127 peripheral devices to your computer

Answer 20

USB

Question 21

the physical interface used to connect internal hard drives, solids state drives, and optical drives to the computer.

Answer 21

SATA

Question 22

A general purpose serial bus that is more efficient for high speed storage and video connections

Answer 22

Firewire

Question 23

Ethernet cable type rated for crawlspaces and behind walls

Answer 23

plenum

Question 24

1: White/Green
2: Green
3: White/Orange
4: Blue
5: White/Blue
6: Orange
7: White/Brown
8: Brown

Answer 24

568A

Question 25

1: White/Orange 2: Orange 3: White/Green 4: Blue 5: White/Blue 6: Green 7: White/Brown 8: Brown

Answer 25

568B

Question 26

Which connector type is used by both component and composite cables? Choose the best response.

Answer 26

RCA

Question 27

A small, five-pin connector that has been deprecated

Answer 27

USB Mini A

Question 28

A small rectangular connector with a white-colored receptacle and five pins used with USB on-the-go devices

Answer 28

Micro USB A

Question 29

A small, five-pin connector used for mobile devices

Answer 29

Usb Mini B

Question 30

A connector used for wired analog telephone service and for dial-up modem connections on computers.

Answer 30

RJ-11

Question 31

Which is a low-speed serial connector found on old PCs and used for mice, external modems, and various other devices?

Answer 31

RS-232

Question 32

The ExpressCard is an older technology that is being replaced by ______

Answer 32

Thunderbolt

Question 33

Which connector type is used with USB on-the-go devices such as cellphones, GPS units, PDAs, and digital cameras?

Answer 33

Micro USB A

Question 34

what type of memory is permanently installed on the motherboard

Answer 34

eMMC

Question 35

an interface protocol used to connect storage devices and other peripherals. While it's less common on PCs than SATA or IDE, it is compatible with a wide variety of physical cables and connection types, and generally supports a larger number of devices on a single controller than ATA.

Answer 35

SCSI

Question 36

This happens during boot, , which verifies critical hardware components are working.

Answer 36

POST power-on self-test

Question 37

a hardware device that allows a user to control multiple computers from one or more sets of keyboards, video monitors, and mice

Answer 37

KVM

Question 38

used by older SSDs, this standard looks similar to mini-PCIe, and integrates both data and power

Answer 38

mSATA

Question 39

directly to the PCIe bus, but instead of NVMe they connect through the Advanced Host Controller Interface driver provided by legacy operating systems.

Answer 39

PCIe over AHCI

Question 40

onnect directly to the PCIe bus using the NVM Express standard designed to leverage the performance benefits of SSDs. It gives increased performance over SATA, but may not be supported by legacy operating systems.

Answer 40

NVME M.2

Question 41

connect to a SATA drive controller through the M.2 bus. It doesn't have any performance benefit over ordinary SATA

Answer 41

SATA M.2

Question 42

steps for slow hard drive performance

Answer 42

- Run CHKDSK - Run manufacturer diagnostic software - Converto to NTFS - Run Disk Cleanup - Defragment - Move data cable to different port