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Comptia A +: Hardware

Subjects : certifications, comptia-a-+, it-skills

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. What is a Brownout?
Too little voltage
240
ATX - BTX - Micro ATX - ITX - NLX - and LPX
Pin Grid Array

2. What does ECC stand for?
Very brief time (milliseconds) of too little voltage
Error Correction Code.
Complex -Instruction - Set - Chips - Used in General Purpose PCs
RAMBUS Inline Memory Module - Comes in 184 and 232-pin slot

3. RAID 1+0 and 0+1 require ____ disks which are two disks that are striped and then mirrored or vise vera.
Pin Grid Array
Random Access Memory (RAM)
Coaxial
4

4. How many pins is a MICRODIMM DIMM?
Cache
800 x 600
Front Side Bus.
144

5. The actual speed of the CPU is governed by a _______ setting called the clock rate.
BIOS
Network communications
DB-15
Very Brief time (milliseconds) of too much voltage

6. What is DVD-RAM? and how is it used?

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7. The physical components that work together to make a computer system or network: - Keyboard - mouse - monitor - printer - Connectors and cables - Drives - Circuit boards
Hardware
Random Access Memory (RAM)
CMOS
184

8. What is a Sag?
USB Type A
Line Grid Array
Networking and Communications
Very brief time (milliseconds) of too little voltage

9. Components from many different manufacturers are interchangeable. As long as the component meets the standards - you can be reasonably confident that it will work in the system.
Reduced Instruction - Set - Chips - Used in data collection - sensors - routers - and graphics processors.
its used as 'Endlessly' rewritable and used primarily as surveillance camera footage.
Standardization
Software

10. QXGA is ____x____
the CPU
40 or 80
2048 x 1536
Liquid Crystal Display

11. Level one cache is located on ___________.
PS/2-style mouse
video ram for the use of the Graphic Processing Unit (GPU). Not related to Virtual RAM.
the CPU
Liquid Crystal Display

12. Multiple core allow the PC to simultaneously process multiple ______.

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13. An example of a device that uses a TRS connector.
PCIe - PCI - AGP - ESIA - and ISA
5.25
Speaker
Joystick

14. PGA stands for
Power failure
a mini DIN Tip Sleeve Ring (TSR) 3.5 millimeter jack
Firmware
Pin Grid Array

15. What are the 4 main types of storage?
they plug into the motherboard to allow further expansion. 1. Magnetic Disk 2. Tape 3. Laser 4. Solid State Flash
1. jumper 2. dip switch 3. push button switch 4. and configured with a separae SCSI BIOS
800 x 600
BIOS

16. Spike
Hardware
Firmware
RJ-45
Very Brief time (milliseconds) of too much voltage

17. BIOS allows you to do 4 things - what are they?
PCIe - PCI - AGP - ESIA - and ISA
Processing
order Boot sequence - Integrated devices - drive controllers - power supply settings
RAMBUS Inline Memory Module - Comes in 184 and 232-pin slot

18. A working PC is a combination of many different parts - also called a Field-Replaceable Unit (FRU) - can be replaced when faulty or upgraded to provide additional functionality.
Standardization
Firewire 6-pin
Componentization
ECC

19. What are the two types of RAM?
Dynamic and Static - Dynamic - loses info in the absence of power. Static - retains info like a hard drive.
5.25
9-pin serial
Power failure

20. RAID 5 has at least ___ hard drives.
240
3
Line Grid Array
the motherboard

21. Number of Pins for Drives: 3. SATA
7 or 15 (powered)
removable chips on the motherboard
order Boot sequence - Integrated devices - drive controllers - power supply settings
CMOS

22. What does SIMM stand for?
2048 x 1536
they plug into the motherboard to allow further expansion. 1. Magnetic Disk 2. Tape 3. Laser 4. Solid State Flash
Single Inline Memory Module - has 30 or 72 contacts on only one side.
its used as 'Endlessly' rewritable and used primarily as surveillance camera footage.

23. How many pins is a DDR3 DIMM?
CMOS
Radial Lines
240
PCIe - PCI - AGP - ESIA - and ISA

24. Parallel devices connect to this connector.
DB-25
ATX - BTX - Micro ATX - ITX - NLX - and LPX
Dynamic and Static - Dynamic - loses info in the absence of power. Static - retains info like a hard drive.
RAMBUS Inline Memory Module - Comes in 184 and 232-pin slot

25. Networking is a specialized form of input and output that entails using media (cable) and devices (routers - switches) to link multiple computers into an interconnected unit.
Networking and Communications
RJ-11
7 or 15 (powered)
the CPU

26. An example of a device that uses a high-density (three-row) DB-15 connector.
Redundant Array of Independant (Inexpensive) Disks.
VGA/SVGA monitor
Complex -Instruction - Set - Chips - Used in General Purpose PCs
Cache

27. Before sending a power supply to the recycling facility...
Complex -Instruction - Set - Chips - Used in General Purpose PCs
DB-25
Reduced Instruction - Set - Chips - Used in data collection - sensors - routers - and graphics processors.
discharge the capacitors by touching and connecting the phase with the ground plug and then the neutral to the ground plug with an insulated screwdriver or pliers.

28. What is Virtual RAM?
Radial Lines
DB-15
Space on the HD that the RAM uses as an overflow area and as a backup copy of the contents in case of power failure.
9

29. Both Parity and _______ decrease efficiency - but increase reliability in RAM.
removable chips on the motherboard
ECC
USB Type A
40 or 80

30. 10Base-2 Ethernet uses this cable.
USB Type A
2048 x 1536
Coaxial
Synchronous Dynamic RAM. Data transfer is timed to the system clock. DDR replaced 168 SDRAM

31. Parity is used in some _____________ - hard drives - and RAM.
Power failure
ATX - BTX - Micro ATX - ITX - NLX - and LPX
Network communications
Joystick

32. The process of the computer presenting - displaying - or otherwise giving data. These devices include: - Video - Audio - Printing
Output
Small Outline DIMM
its used as 'Endlessly' rewritable and used primarily as surveillance camera footage.
Pin Grid Array

33. Surge
they plug into the motherboard to allow further expansion. 1. Magnetic Disk 2. Tape 3. Laser 4. Solid State Flash
DB-25 parallel
Redundant Array of Independant (Inexpensive) Disks.
Too much voltage

34. What are the 6 form factors of motherboards?
the motherboard
ATX - BTX - Micro ATX - ITX - NLX - and LPX
CMOS
144

35. Multicore CPUs share a common ____ _____ _____. Which can cause traffic bottlenecks as competing cores communicate on the main system bus.
discharge the capacitors by touching and connecting the phase with the ground plug and then the neutral to the ground plug with an insulated screwdriver or pliers.
tasks or 'Threads'
Front Side Bus.
BIOS

36. External modems most commonly connect to this port.
Error Correction Code.
Networking and Communications
video ram for the use of the Graphic Processing Unit (GPU). Not related to Virtual RAM.
Serial

37. Video cameras (most common) Less commonly - similar devices that use USB connectors such as printers or external drives
Joystick
Firewire 6-pin
DB-15
144

38. UXGA is _____x_____
1600 x 1200
Error Correction Code.
Complex -Instruction - Set - Chips - Used in General Purpose PCs
Too much voltage

39. What is a Blackout?
5.25
Power failure
240
DB-25 parallel

40. What does CRT stand for?
1. jumper 2. dip switch 3. push button switch 4. and configured with a separae SCSI BIOS
Cathode Ray Tube
Power failure
1600 x 1200

41. The act of keeping or maintaining data. These devices include: - Hard disk drive - Floppy disk drive - Optical drives (CD-ROM - DVD) - Flash drive
DB-15
Storage
9-pin serial
DB-15

42. Computer programs that perform specific tasks include: - Operating System- Program applications - Hardware drivers (special programs that tell the operating system how to use the hardware)
Software
4
Pin Grid Array
the CPU

43. Parity is a method of ____________. It is used when the reliability of the data is more important than the speed at which it is written or read. When the data is read or received - the bytes should still be even. If not - the data is corrupt.
removable chips on the motherboard
DSD and SSD (DSD - Dynamic State Drives SSD - Solid State Drives)
800 x 600
verifying data integrity.

44. CPUS: What is CISC?
144
Complex -Instruction - Set - Chips - Used in General Purpose PCs
CMOS
DB-15

45. 10Base-5 Ethernet and game ports use this cable
its used as 'Endlessly' rewritable and used primarily as surveillance camera footage.
DB-15
200
tasks or 'Threads'

46. SCSI code is set by a 4 things - what are they?
TRS
1. jumper 2. dip switch 3. push button switch 4. and configured with a separae SCSI BIOS
Reduced Instruction - Set - Chips - Used in data collection - sensors - routers - and graphics processors.
Line Grid Array

47. An example of a device that uses a low-density (two-row) male DB-15 connector.
a mini DIN Tip Sleeve Ring (TSR) 3.5 millimeter jack
ATX - BTX - Micro ATX - ITX - NLX - and LPX
Firewire 6-pin
Joystick

48. This device converts a visual input into a binary stream through an analog-to-digital conversion (ADC)
Line Grid Array
240
CMOS
DB-15

49. A dime sized component of the camera head into which light enters and is converted into and electronic or video signal
Complex -Instruction - Set - Chips - Used in General Purpose PCs
the CPU
charged coupled device (CCD)
DB-15

50. What does ECC do?
Joystick
detects and fixes corrupt data in RAM.
order Boot sequence - Integrated devices - drive controllers - power supply settings
CMOS