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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 a device that uses a high-density (three-row) DB-15 connector.
VGA/SVGA monitor
Synchronous Dynamic RAM. Data transfer is timed to the system clock. DDR replaced 168 SDRAM
Serial
Network communications

2. LGA stands for ______.
Single Inline Memory Module - has 30 or 72 contacts on only one side.
184
charged coupled device (CCD)
Line Grid Array

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

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4. What does LCD stand for?
144
Liquid Crystal Display
Coaxial
Standardization

5. Serial mouse or external modem
B-9 serial
2048 x 1536
34
1. jumper 2. dip switch 3. push button switch 4. and configured with a separae SCSI BIOS

6. 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
1600 x 1200
verifying data integrity.
Componentization

7. The BIOS is stored on the _______ chip that is on the motherboard.
CMOS
3
1024 x 786
DB-25 parallel

8. How many pins is a DDR DIMM?
184
Radial Lines
1. jumper 2. dip switch 3. push button switch 4. and configured with a separae SCSI BIOS
Pin Grid Array

9. What are the 5 Expansion Slot types - Daughter Boards or Riser Boards?
CMOS
PCIe - PCI - AGP - ESIA - and ISA
4
Cache

10. The actual speed of the CPU is governed by a _______ setting called the clock rate.
charged coupled device (CCD)
TRS
BIOS
PCIe - PCI - AGP - ESIA - and ISA

11. What does ECC do?
Front Side Bus.
ECC
240
detects and fixes corrupt data in RAM.

12. SCSI code is set by a 4 things - what are they?
9
order Boot sequence - Integrated devices - drive controllers - power supply settings
1. jumper 2. dip switch 3. push button switch 4. and configured with a separae SCSI BIOS
1600 x 1200

13. RAID 1+0 and 0+1 require ____ disks which are two disks that are striped and then mirrored or vise vera.
4
9
Processing
charged coupled device (CCD)

14. How many pins is a SODIMM DDR2 DIMM?
200
Dynamic and Static - Dynamic - loses info in the absence of power. Static - retains info like a hard drive.
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.

15. Ethernet network
1024 x 786
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.
RJ-45
Speaker

16. What is Virtual RAM?
Reduced Instruction - Set - Chips - Used in data collection - sensors - routers - and graphics processors.
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.
Componentization
40 or 80

17. An example of firmware.
Processing
BIOS
144
50 - 68 - or 80

18. CPUS: What is CISC?
9-pin serial
Power failure
Cathode Ray Tube
Complex -Instruction - Set - Chips - Used in General Purpose PCs

19. Software that has been permanently placed in a hardware component. An example is a BIOS chip.
Network communications
DB-25 parallel
Firmware
Processing

20. The act of keeping or maintaining data. These devices include: - Hard disk drive - Floppy disk drive - Optical drives (CD-ROM - DVD) - Flash drive
5.25
Error Correction Code.
Storage
PCIe - PCI - AGP - ESIA - and ISA

21. 10Base-5 Ethernet and game ports use this cable
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.
5.25
a mini DIN Tip Sleeve Ring (TSR) 3.5 millimeter jack
DB-15

22. What does SODIMM stand for?
Too little voltage
Small Outline DIMM
Joystick
CMOS

23. 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
Synchronous Dynamic RAM. Data transfer is timed to the system clock. DDR replaced 168 SDRAM
5.25
Complex -Instruction - Set - Chips - Used in General Purpose PCs

24. A special RAM chip powered and maintained by a small battery that holds basic configuration data a computer needs to start.
Firmware
CMOS
3
Networking and Communications

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

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26. What is a Brownout?
verifying data integrity.
Too little voltage
Software
TRS

27. Number of Pins for Drives: 2. SCSI
1600 x 1200
50 - 68 - or 80
Input
CMOS

28. UXGA is _____x_____
240
1600 x 1200
the CPU
50 - 68 - or 80

29. What do the type types of Hard Drive acronyms stand for?
200
TRS
DSD and SSD (DSD - Dynamic State Drives SSD - Solid State Drives)
3

30. An example of a device that uses a 6-pin Mini-DIN connector.
Error Correction Code.
DB-25
PS/2-style mouse
40 or 80

31. A temporary data storage location that can be read from and written to.
Random Access Memory (RAM)
Error Correction Code.
the CPU
800 x 600

32. Video cameras (most common) Less commonly - similar devices that use USB connectors such as printers or external drives
Error Correction Code.
Firewire 6-pin
Output
Pin Grid Array

33. 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)
CMOS
Processing
Software
CMOS

34. How many pins is a MICRODIMM DIMM?
240
144
Random Access Memory (RAM)
Dynamic and Static - Dynamic - loses info in the absence of power. Static - retains info like a hard drive.

35. Level two cache is located on _______.
the motherboard
order Boot sequence - Integrated devices - drive controllers - power supply settings
RJ-11
Redundant Array of Independant (Inexpensive) Disks.

36. BIOS allows you to do 4 things - what are they?
charged coupled device (CCD)
Very brief time (milliseconds) of too little voltage
B-9 serial
order Boot sequence - Integrated devices - drive controllers - power supply settings

37. 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.
200
its used as 'Endlessly' rewritable and used primarily as surveillance camera footage.
Cathode Ray Tube
Networking and Communications

38. 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.
Standardization
DB-15
144
Speaker

39. Printer - Scanner - Camera - Printer - Mouse - Keyboard - External CD-ROM drive - MP3 player - PDA
Very brief time (milliseconds) of too little voltage
USB Type A
Speaker
1. jumper 2. dip switch 3. push button switch 4. and configured with a separae SCSI BIOS

40. What is the formal name of the 'headphone jack'?
a mini DIN Tip Sleeve Ring (TSR) 3.5 millimeter jack
they plug into the motherboard to allow further expansion. 1. Magnetic Disk 2. Tape 3. Laser 4. Solid State Flash
verifying data integrity.
Processing

41. XGA is ____x_____
RAMBUS Inline Memory Module - Comes in 184 and 232-pin slot
order Boot sequence - Integrated devices - drive controllers - power supply settings
1024 x 786
a mini DIN Tip Sleeve Ring (TSR) 3.5 millimeter jack

42. What are the two types of RAM?
144
ATX - BTX - Micro ATX - ITX - NLX - and LPX
CMOS
Dynamic and Static - Dynamic - loses info in the absence of power. Static - retains info like a hard drive.

43. level three cache is located on _________.
removable chips on the motherboard
34
1. jumper 2. dip switch 3. push button switch 4. and configured with a separae SCSI BIOS
Networking and Communications

44. Level one cache is located on ___________.
800 x 600
TRS
the CPU
RJ-45

45. What are the 6 form factors of motherboards?
Single Inline Memory Module - has 30 or 72 contacts on only one side.
9
ATX - BTX - Micro ATX - ITX - NLX - and LPX
Pin Grid Array

46. How many pins is a SODIMM DDR DIMM?
DB-25 parallel
144
9-pin serial
Small Outline DIMM

47. What is a Sag?
Processing
Networking and Communications
Very brief time (milliseconds) of too little voltage
ATX - BTX - Micro ATX - ITX - NLX - and LPX

48. The physical components that work together to make a computer system or network: - Keyboard - mouse - monitor - printer - Connectors and cables - Drives - Circuit boards
CMOS
Liquid Crystal Display
B-9 serial
Hardware

49. Spike
Very Brief time (milliseconds) of too much voltage
50 - 68 - or 80
Cache
40 or 80

50. Parallel devices connect to this connector.
9
video ram for the use of the Graphic Processing Unit (GPU). Not related to Virtual RAM.
DB-25
Hardware