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Comptia A +: Hardware

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

Instructions:

Answer 50 questions in 15 minutes.
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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. How many pins is a SODIMM DDR2 DIMM?
1600 x 1200
200
Random Access Memory (RAM)
5.25

2. SVGA is ____ x_____
DB-25 parallel
800 x 600
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.
Coaxial

3. SDRAM sands for _______.
Standardization
Synchronous Dynamic RAM. Data transfer is timed to the system clock. DDR replaced 168 SDRAM
Small Outline DIMM
184

4. 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)
240
4
Serial
Software

5. The process of sending data to the computer. These devices include: - Mouse - Keyboard - Touchscreen
240
Componentization
detects and fixes corrupt data in RAM.
Input

6. How many pins is a DDR2 DIMM?
CMOS
240
Joystick
Volatile

7. Parity is used in some _____________ - hard drives - and RAM.
Network communications
Cache
Power failure
CMOS

8. 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.
240
Cache
Small Outline DIMM

9. Multicore CPUs share a common ____ _____ _____. Which can cause traffic bottlenecks as competing cores communicate on the main system bus.
Front Side Bus.
4
Pin Grid Array
Too little voltage

10. How many pins is a SODIMM DDR DIMM?
144
34
CMOS
Front Side Bus.

11. The physical components that work together to make a computer system or network: - Keyboard - mouse - monitor - printer - Connectors and cables - Drives - Circuit boards
VGA/SVGA monitor
9
Pin Grid Array
Hardware

12. BIOS allows you to do 4 things - what are they?
Very brief time (milliseconds) of too little voltage
the motherboard
Firmware
order Boot sequence - Integrated devices - drive controllers - power supply settings

13. ZIF stands for ______.
Too little voltage
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.
VGA/SVGA monitor
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.

14. What does ECC stand for?
Storage
Very brief time (milliseconds) of too little voltage
Line Grid Array
Error Correction Code.

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

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16. What does LCD stand for?
2048 x 1536
Liquid Crystal Display
Very brief time (milliseconds) of too little voltage
they plug into the motherboard to allow further expansion. 1. Magnetic Disk 2. Tape 3. Laser 4. Solid State Flash

17. What is a Blackout?
Power failure
Liquid Crystal Display
240
34

18. 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
DB-25
RJ-11
1. jumper 2. dip switch 3. push button switch 4. and configured with a separae SCSI BIOS

19. Number of Pins for Drives: 4. FDD
Too much voltage
34
Small Outline DIMM
Software

20. LGA stands for ______.
VGA/SVGA monitor
Line Grid Array
240
4

21. XGA is ____x_____
CMOS
its used as 'Endlessly' rewritable and used primarily as surveillance camera footage.
Processing
1024 x 786

22. What is VRAM used for?
video ram for the use of the Graphic Processing Unit (GPU). Not related to Virtual RAM.
Componentization
RJ-45
Dynamic and Static - Dynamic - loses info in the absence of power. Static - retains info like a hard drive.

23. Video cameras (most common) Less commonly - similar devices that use USB connectors such as printers or external drives
DB-15
Firewire 6-pin
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.
ATX - BTX - Micro ATX - ITX - NLX - and LPX

24. Surge
a mini DIN Tip Sleeve Ring (TSR) 3.5 millimeter jack
Random Access Memory (RAM)
Too much voltage
800 x 600

25. What is a Brownout?
4
Cathode Ray Tube
CMOS
Too little voltage

26. What are the 6 form factors of motherboards?
ATX - BTX - Micro ATX - ITX - NLX - and LPX
Serial
Single Inline Memory Module - has 30 or 72 contacts on only one side.
CMOS

27. 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.
Very Brief time (milliseconds) of too much voltage
Standardization
Input
CMOS

28. Both Parity and _______ decrease efficiency - but increase reliability in RAM.
ECC
CMOS
Speaker
2048 x 1536

29. What do the type types of Hard Drive acronyms stand for?
Small Outline DIMM
TRS
Front Side Bus.
DSD and SSD (DSD - Dynamic State Drives SSD - Solid State Drives)

30. Printer - Scanner - Camera - Printer - Mouse - Keyboard - External CD-ROM drive - MP3 player - PDA
PCIe - PCI - AGP - ESIA - and ISA
USB Type A
Radial Lines
PS/2-style mouse

31. Parallel devices connect to this connector.
Too little voltage
Standardization
184
DB-25

32. Spike
34
Very Brief time (milliseconds) of too much voltage
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.
Radial Lines

33. A serial mouse connects to a computer with this connector.
VGA/SVGA monitor
a mini DIN Tip Sleeve Ring (TSR) 3.5 millimeter jack
9-pin serial
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.

34. Hard Drives mount at 3.5 or 2.5 - Optical Drives mount at _____.
144
5.25
800 x 600
50 - 68 - or 80

35. External modems most commonly connect to this port.
Networking and Communications
Serial
CMOS
DB-25

36. QXGA is ____x____
2048 x 1536
Reduced Instruction - Set - Chips - Used in data collection - sensors - routers - and graphics processors.
the CPU
Small Outline DIMM

37. DSD or Dynamic State Drives are organized into Tracks or Rings - and sectors or _____.
detects and fixes corrupt data in RAM.
DB-25 parallel
video ram for the use of the Graphic Processing Unit (GPU). Not related to Virtual RAM.
Radial Lines

38. 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.
verifying data integrity.
Serial
1024 x 786
order Boot sequence - Integrated devices - drive controllers - power supply settings

39. A dime sized component of the camera head into which light enters and is converted into and electronic or video signal
Hardware
charged coupled device (CCD)
PS/2-style mouse
Coaxial

40. Ethernet network
RJ-11
order Boot sequence - Integrated devices - drive controllers - power supply settings
PS/2-style mouse
RJ-45

41. Level one cache is located on ___________.
Input
3
800 x 600
the CPU

42. RAID stands for _________.
Line Grid Array
CMOS
Redundant Array of Independant (Inexpensive) Disks.
Cache

43. CPUS: What is CISC?
USB Type A
200
Complex -Instruction - Set - Chips - Used in General Purpose PCs
they plug into the motherboard to allow further expansion. 1. Magnetic Disk 2. Tape 3. Laser 4. Solid State Flash

44. RAID 5 has at least ___ hard drives.
3
Input
Very brief time (milliseconds) of too little voltage
Synchronous Dynamic RAM. Data transfer is timed to the system clock. DDR replaced 168 SDRAM

45. A special RAM chip powered and maintained by a small battery that holds basic configuration data a computer needs to start.
RJ-45
CMOS
the CPU
BIOS

46. CPUs: What is RISC?
Reduced Instruction - Set - Chips - Used in data collection - sensors - routers - and graphics processors.
DSD and SSD (DSD - Dynamic State Drives SSD - Solid State Drives)
Standardization
Dynamic and Static - Dynamic - loses info in the absence of power. Static - retains info like a hard drive.

47. Before sending a power supply to the recycling facility...
Front Side Bus.
Software
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.
Hardware

48. 10Base-5 Ethernet and game ports use this cable
DB-15
Front Side Bus.
Storage
1024 x 786

49. An example of a device that uses a high-density (three-row) DB-15 connector.
VGA/SVGA monitor
Too little voltage
Speaker
DB-15

50. What does ECC do?
verifying data integrity.
Complex -Instruction - Set - Chips - Used in General Purpose PCs
RJ-45
detects and fixes corrupt data in RAM.

Can you answer 50 questions in 15 minutes?

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Comptia A +: Hardware

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