IT Foundations (CompTIA A+) Flashcards Preview

Introduction to IT > IT Foundations (CompTIA A+) > Flashcards

Flashcards in IT Foundations (CompTIA A+) Deck (42)
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1
Q

What will cause incorrect system dates and loss of bios settings

A

dying CMOS battery

2
Q

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

A

Southbridge chip

3
Q

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

A

ExpressCard

4
Q

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

A

AGP slot

5
Q

this CPU component performs arithmetic and logic operations

A

arithmetic logic unit

6
Q

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

A

control unit

7
Q

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

A

secure boot

8
Q

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

A

Trusted Platform Module

9
Q

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

A

Advanced Configuration Power Interface

10
Q

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

A

PnP

11
Q

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

A

boot services

12
Q

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

A

runtime services

13
Q

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

A

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

14
Q

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

A

buffered DIMMs

15
Q

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

A

Double Data Rate memory

16
Q

which is smaller DIMM or SODIMM

A

SODIMM

17
Q

How to calculate DDR transfer rates

A

DDR-1234 * 8 (multiply by 8)

18
Q

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

A

Flashing

19
Q

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

A

control bus

20
Q

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

A

USB

21
Q

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

A

SATA

22
Q

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

A

Firewire

23
Q

Ethernet cable type rated for crawlspaces and behind walls

A

plenum

24
Q

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

A

568A

25
Q

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

A

568B

26
Q

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

A

RCA

27
Q

A small, five-pin connector that has been deprecated

A

USB Mini A

28
Q

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

A

Micro USB A

29
Q

A small, five-pin connector used for mobile devices

A

Usb Mini B

30
Q

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

A

RJ-11

31
Q

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

A

RS-232

32
Q

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

A

Thunderbolt

33
Q

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

A

Micro USB A

34
Q

what type of memory is permanently installed on the motherboard

A

eMMC

35
Q

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.

A

SCSI

36
Q

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

A

POST power-on self-test

37
Q

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

A

KVM

38
Q

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

A

mSATA

39
Q

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

A

PCIe over AHCI

40
Q

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.

A

NVME M.2

41
Q

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

A

SATA M.2

42
Q

steps for slow hard drive performance

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