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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. An example of firmware.
Reduced Instruction - Set - Chips - Used in data collection - sensors - routers - and graphics processors.
Storage
BIOS
its used as 'Endlessly' rewritable and used primarily as surveillance camera footage.

2. A dime sized component of the camera head into which light enters and is converted into and electronic or video signal
charged coupled device (CCD)
Random Access Memory (RAM)
DB-25
240

3. Surge
Very Brief time (milliseconds) of too much voltage
9-pin serial
Too much voltage
USB Type A

4. What is a Blackout?
Speaker
Synchronous Dynamic RAM. Data transfer is timed to the system clock. DDR replaced 168 SDRAM
Very brief time (milliseconds) of too little voltage
Power failure

5. What are the 5 Expansion Slot types - Daughter Boards or Riser Boards?
DSD and SSD (DSD - Dynamic State Drives SSD - Solid State Drives)
PCIe - PCI - AGP - ESIA - and ISA
BIOS
Dynamic and Static - Dynamic - loses info in the absence of power. Static - retains info like a hard drive.

6. How many pins is a MICRODIMM DIMM?
144
Joystick
removable chips on the motherboard
Serial

7. 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.
4
Too much voltage
Software
Componentization

8. An example of a device that uses a TRS connector.
240
Coaxial
Speaker
charged coupled device (CCD)

9. 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.
DB-15
they plug into the motherboard to allow further expansion. 1. Magnetic Disk 2. Tape 3. Laser 4. Solid State Flash
1600 x 1200
verifying data integrity.

10. How many pins is a SODIMM DDR2 DIMM?
Synchronous Dynamic RAM. Data transfer is timed to the system clock. DDR replaced 168 SDRAM
detects and fixes corrupt data in RAM.
tasks or 'Threads'
200

11. What is Virtual RAM?
Speaker
Single Inline Memory Module - has 30 or 72 contacts on only one side.
RJ-45
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.

12. What does CRT stand for?
Network communications
USB Type A
Cathode Ray Tube
2048 x 1536

13. Number of Pins for Drives: 1. PATA - ATA - IDE - or EIDE
RJ-45
184
Software
40 or 80

14. Joystick or MIDI device (game port) - High Density DB-15 - VGA/SVGA monitor - 6-pin Mini-DIN - PS/2-style keyboard or mouse - By convention - purple connectors are used for the keyboard - and green connectors are used for the mouse.
DB-25
DB-15
3
7 or 15 (powered)

15. The actual speed of the CPU is governed by a _______ setting called the clock rate.
BIOS
Hardware
800 x 600
Network communications

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

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17. The BIOS is stored on the _______ chip that is on the motherboard.
B-9 serial
40 or 80
PS/2-style mouse
CMOS

18. Printer - Scanner - Camera - Printer - Mouse - Keyboard - External CD-ROM drive - MP3 player - PDA
a mini DIN Tip Sleeve Ring (TSR) 3.5 millimeter jack
DB-15
USB Type A
Line Grid Array

19. 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.
Standardization
Serial
Input
1024 x 786

20. What is the formal name of the 'headphone jack'?
9-pin serial
Reduced Instruction - Set - Chips - Used in data collection - sensors - routers - and graphics processors.
a mini DIN Tip Sleeve Ring (TSR) 3.5 millimeter jack
Componentization

21. Serial mouse or external modem
Too little voltage
tasks or 'Threads'
Software
B-9 serial

22. PGA stands for
9
Pin Grid Array
144
Complex -Instruction - Set - Chips - Used in General Purpose PCs

23. level three cache is located on _________.
Speaker
removable chips on the motherboard
Network communications
ECC

24. SCSI code is set by a 4 things - what are they?
Error Correction Code.
BIOS
Power failure
1. jumper 2. dip switch 3. push button switch 4. and configured with a separae SCSI BIOS

25. UXGA is _____x_____
1600 x 1200
removable chips on the motherboard
VGA/SVGA monitor
240

26. An area of memory that holds recently-accessed data.
Cache
Processing
Componentization
1024 x 786

27. CPUs: What is RISC?
removable chips on the motherboard
Reduced Instruction - Set - Chips - Used in data collection - sensors - routers - and graphics processors.
DSD and SSD (DSD - Dynamic State Drives SSD - Solid State Drives)
34

28. This device converts a visual input into a binary stream through an analog-to-digital conversion (ADC)
2048 x 1536
Liquid Crystal Display
CMOS
Software

29. The act of keeping or maintaining data. These devices include: - Hard disk drive - Floppy disk drive - Optical drives (CD-ROM - DVD) - Flash drive
Storage
BIOS
RJ-45
verifying data integrity.

30. What does ECC do?
detects and fixes corrupt data in RAM.
verifying data integrity.
Random Access Memory (RAM)
800 x 600

31. The physical components that work together to make a computer system or network: - Keyboard - mouse - monitor - printer - Connectors and cables - Drives - Circuit boards
Radial Lines
Cache
Hardware
detects and fixes corrupt data in RAM.

32. Number of Pins for Drives: 3. SATA
7 or 15 (powered)
34
RJ-11
CMOS

33. An example of a device that uses a 6-pin Mini-DIN connector.
Standardization
1600 x 1200
PS/2-style mouse
RAMBUS Inline Memory Module - Comes in 184 and 232-pin slot

34. Serial ports have this many pins.
Radial Lines
9
VGA/SVGA monitor
a mini DIN Tip Sleeve Ring (TSR) 3.5 millimeter jack

35. Parallel devices connect to this connector.
Software
DB-25
a mini DIN Tip Sleeve Ring (TSR) 3.5 millimeter jack
Firmware

36. BIOS allows you to do 4 things - what are they?
charged coupled device (CCD)
Synchronous Dynamic RAM. Data transfer is timed to the system clock. DDR replaced 168 SDRAM
order Boot sequence - Integrated devices - drive controllers - power supply settings
Too little voltage

37. 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)
tasks or 'Threads'
Software
50 - 68 - or 80
144

38. What is a Sag?
Standardization
Very brief time (milliseconds) of too little voltage
Random Access Memory (RAM)
Networking and Communications

39. CPUS: What is CISC?
40 or 80
Joystick
200
Complex -Instruction - Set - Chips - Used in General Purpose PCs

40. What are the 6 form factors of motherboards?
ATX - BTX - Micro ATX - ITX - NLX - and LPX
Cathode Ray Tube
144
DB-25 parallel

41. What is VRAM used for?
Redundant Array of Independant (Inexpensive) Disks.
video ram for the use of the Graphic Processing Unit (GPU). Not related to Virtual RAM.
50 - 68 - or 80
Random Access Memory (RAM)

42. Multicore CPUs share a common ____ _____ _____. Which can cause traffic bottlenecks as competing cores communicate on the main system bus.
Line Grid Array
Front Side Bus.
verifying data integrity.
4

43. Level one cache is located on ___________.
removable chips on the motherboard
the CPU
Pin Grid Array
Software

44. Speaker or microphone - Common color codes for connectors are: Red = Mic In - Blue = Line In - Green = Line Out
Error Correction Code.
removable chips on the motherboard
TRS
Too much voltage

45. 10Base-5 Ethernet and game ports use this cable
Software
ATX - BTX - Micro ATX - ITX - NLX - and LPX
DB-25 parallel
DB-15

46. LGA stands for ______.
USB Type A
Line Grid Array
CMOS
Processing

47. How many pins is a DDR3 DIMM?
BIOS
DB-25 parallel
Output
240

48. A special RAM chip powered and maintained by a small battery that holds basic configuration data a computer needs to start.
its used as 'Endlessly' rewritable and used primarily as surveillance camera footage.
CMOS
Componentization
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.

49. RAID 1+0 and 0+1 require ____ disks which are two disks that are striped and then mirrored or vise vera.
Joystick
Front Side Bus.
Very Brief time (milliseconds) of too much voltage
4

50. External modems most commonly connect to this port.
CMOS
50 - 68 - or 80
Serial
its used as 'Endlessly' rewritable and used primarily as surveillance camera footage.