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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. A type of memory that loses data when the power is no longer supplied to the component.
Synchronous Dynamic RAM. Data transfer is timed to the system clock. DDR replaced 168 SDRAM
1600 x 1200
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.
Volatile

2. What is a Sag?
DSD and SSD (DSD - Dynamic State Drives SSD - Solid State Drives)
Very brief time (milliseconds) of too little voltage
Output
order Boot sequence - Integrated devices - drive controllers - power supply settings

3. 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.
Small Outline DIMM
200
PS/2-style mouse
verifying data integrity.

4. A dime sized component of the camera head into which light enters and is converted into and electronic or video signal
50 - 68 - or 80
Liquid Crystal Display
Too little voltage
charged coupled device (CCD)

5. An example of firmware.
BIOS
PS/2-style mouse
Redundant Array of Independant (Inexpensive) Disks.
Power failure

6. Printers
Too much voltage
Storage
the motherboard
DB-25 parallel

7. 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.
Error Correction Code.
Synchronous Dynamic RAM. Data transfer is timed to the system clock. DDR replaced 168 SDRAM
Componentization
Networking and Communications

8. What does ECC do?
detects and fixes corrupt data in RAM.
DB-15
Error Correction Code.
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. Video cameras (most common) Less commonly - similar devices that use USB connectors such as printers or external drives
40 or 80
144
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.
Firewire 6-pin

10. LGA stands for ______.
Zero Insertion Force. a physical interface that lets you set the CPU into the array - and then use actuate a lever to make actual contact.
4
Line Grid Array
its used as 'Endlessly' rewritable and used primarily as surveillance camera footage.

11. External modems most commonly connect to this port.
Serial
Error Correction Code.
240
CMOS

12. The process of sending data to the computer. These devices include: - Mouse - Keyboard - Touchscreen
Joystick
184
Input
5.25

13. Ethernet network
200
Radial Lines
Cathode Ray Tube
RJ-45

14. The process of the computer presenting - displaying - or otherwise giving data. These devices include: - Video - Audio - Printing
Output
BIOS
Very Brief time (milliseconds) of too much voltage
34

15. 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.
Single Inline Memory Module - has 30 or 72 contacts on only one side.
40 or 80
the motherboard
Standardization

16. PGA stands for
DB-25
the motherboard
Pin Grid Array
Error Correction Code.

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

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18. Before sending a power supply to the recycling facility...
1024 x 786
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.
Reduced Instruction - Set - Chips - Used in data collection - sensors - routers - and graphics processors.
they plug into the motherboard to allow further expansion. 1. Magnetic Disk 2. Tape 3. Laser 4. Solid State Flash

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

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20. CPUs: What is RISC?
Software
CMOS
Reduced Instruction - Set - Chips - Used in data collection - sensors - routers - and graphics processors.
Speaker

21. What is Virtual RAM?
Error Correction Code.
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-pin serial
CMOS

22. A serial mouse connects to a computer with this connector.
a mini DIN Tip Sleeve Ring (TSR) 3.5 millimeter jack
Random Access Memory (RAM)
order Boot sequence - Integrated devices - drive controllers - power supply settings
9-pin serial

23. The act of keeping or maintaining data. These devices include: - Hard disk drive - Floppy disk drive - Optical drives (CD-ROM - DVD) - Flash drive
tasks or 'Threads'
USB Type A
Redundant Array of Independant (Inexpensive) Disks.
Storage

24. Serial mouse or external modem
B-9 serial
Processing
RJ-11
RAMBUS Inline Memory Module - Comes in 184 and 232-pin slot

25. The actual speed of the CPU is governed by a _______ setting called the clock rate.
tasks or 'Threads'
Liquid Crystal Display
Random Access Memory (RAM)
BIOS

26. Internal modem or telephone
144
1600 x 1200
DB-25 parallel
RJ-11

27. 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.
they plug into the motherboard to allow further expansion. 1. Magnetic Disk 2. Tape 3. Laser 4. Solid State Flash
5.25
DB-15
B-9 serial

28. Multicore CPUs share a common ____ _____ _____. Which can cause traffic bottlenecks as competing cores communicate on the main system bus.
DB-25
Front Side Bus.
Too much voltage
Firewire 6-pin

29. SCSI code is set by a 4 things - what are they?
1. jumper 2. dip switch 3. push button switch 4. and configured with a separae SCSI BIOS
RAMBUS Inline Memory Module - Comes in 184 and 232-pin slot
9
Synchronous Dynamic RAM. Data transfer is timed to the system clock. DDR replaced 168 SDRAM

30. A special RAM chip powered and maintained by a small battery that holds basic configuration data a computer needs to start.
Power failure
CMOS
200
Too little voltage

31. Software that has been permanently placed in a hardware component. An example is a BIOS chip.
the motherboard
1024 x 786
Firmware
1600 x 1200

32. Parity is used in some _____________ - hard drives - and RAM.
240
Dynamic and Static - Dynamic - loses info in the absence of power. Static - retains info like a hard drive.
Coaxial
Network communications

33. Hard Drives mount at 3.5 or 2.5 - Optical Drives mount at _____.
Software
3
5.25
Coaxial

34. An area of memory that holds recently-accessed data.
Cache
DB-25
1. jumper 2. dip switch 3. push button switch 4. and configured with a separae SCSI BIOS
34

35. BIOS allows you to do 4 things - what are they?
144
video ram for the use of the Graphic Processing Unit (GPU). Not related to Virtual RAM.
order Boot sequence - Integrated devices - drive controllers - power supply settings
RJ-45

36. How many pins is a SODIMM DDR DIMM?
Componentization
144
800 x 600
CMOS

37. Serial ports have this many pins.
they plug into the motherboard to allow further expansion. 1. Magnetic Disk 2. Tape 3. Laser 4. Solid State Flash
9
9-pin serial
Pin Grid Array

38. How many pins is a DDR DIMM?
the CPU
1. jumper 2. dip switch 3. push button switch 4. and configured with a separae SCSI BIOS
184
Radial Lines

39. level three cache is located on _________.
removable chips on the motherboard
Firewire 6-pin
Synchronous Dynamic RAM. Data transfer is timed to the system clock. DDR replaced 168 SDRAM
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.

40. Number of Pins for Drives: 2. SCSI
Software
50 - 68 - or 80
tasks or 'Threads'
Joystick

41. Level two cache is located on _______.
Single Inline Memory Module - has 30 or 72 contacts on only one side.
VGA/SVGA monitor
the motherboard
Input

42. CPUS: What is CISC?
Too much voltage
Complex -Instruction - Set - Chips - Used in General Purpose PCs
1024 x 786
2048 x 1536

43. What does SODIMM stand for?
50 - 68 - or 80
DB-25
Small Outline DIMM
charged coupled device (CCD)

44. Both Parity and _______ decrease efficiency - but increase reliability in RAM.
Power failure
DB-15
ECC
CMOS

45. What is VRAM used for?
video ram for the use of the Graphic Processing Unit (GPU). Not related to Virtual RAM.
4
DB-25
a mini DIN Tip Sleeve Ring (TSR) 3.5 millimeter jack

46. What is a Blackout?
tasks or 'Threads'
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.
Power failure
Serial

47. What does RIMM stand for?
RAMBUS Inline Memory Module - Comes in 184 and 232-pin slot
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.
CMOS
Cathode Ray Tube

48. Number of Pins for Drives: 1. PATA - ATA - IDE - or EIDE
tasks or 'Threads'
40 or 80
RJ-45
detects and fixes corrupt data in RAM.

49. Speaker or microphone - Common color codes for connectors are: Red = Mic In - Blue = Line In - Green = Line Out
TRS
Componentization
CMOS
DB-25

50. What is a Brownout?
Too little voltage
Serial
Standardization
RJ-11