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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. Number of Pins for Drives: 4. FDD
34
9
Volatile
Small Outline DIMM

2. This device converts a visual input into a binary stream through an analog-to-digital conversion (ADC)
40 or 80
RJ-11
CMOS
DB-25 parallel

3. What does ECC stand for?
DB-15
Storage
2048 x 1536
Error Correction Code.

4. What is a Sag?
USB Type A
DB-15
charged coupled device (CCD)
Very brief time (milliseconds) of too little voltage

5. RAID 5 has at least ___ hard drives.
its used as 'Endlessly' rewritable and used primarily as surveillance camera footage.
USB Type A
3
5.25

6. level three cache is located on _________.
Standardization
RJ-45
removable chips on the motherboard
CMOS

7. An example of a device that uses a low-density (two-row) male DB-15 connector.
Joystick
Storage
40 or 80
144

8. A temporary data storage location that can be read from and written to.
PS/2-style mouse
40 or 80
Random Access Memory (RAM)
CMOS

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

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10. How many pins is a DDR3 DIMM?
144
they plug into the motherboard to allow further expansion. 1. Magnetic Disk 2. Tape 3. Laser 4. Solid State Flash
240
Synchronous Dynamic RAM. Data transfer is timed to the system clock. DDR replaced 168 SDRAM

11. Parity is used in some _____________ - hard drives - and RAM.
1024 x 786
ECC
34
Network communications

12. A dime sized component of the camera head into which light enters and is converted into and electronic or video signal
RJ-45
charged coupled device (CCD)
the CPU
Cathode Ray Tube

13. Both Parity and _______ decrease efficiency - but increase reliability in RAM.
ECC
PS/2-style mouse
200
Componentization

14. Video cameras (most common) Less commonly - similar devices that use USB connectors such as printers or external drives
Firewire 6-pin
Cathode Ray Tube
200
Speaker

15. XGA is ____x_____
Synchronous Dynamic RAM. Data transfer is timed to the system clock. DDR replaced 168 SDRAM
5.25
Single Inline Memory Module - has 30 or 72 contacts on only one side.
1024 x 786

16. How many pins is a MICRODIMM DIMM?
144
Networking and Communications
Synchronous Dynamic RAM. Data transfer is timed to the system clock. DDR replaced 168 SDRAM
Redundant Array of Independant (Inexpensive) Disks.

17. What are the 6 form factors of motherboards?
ATX - BTX - Micro ATX - ITX - NLX - and LPX
Cathode Ray Tube
BIOS
the motherboard

18. An example of a device that uses a high-density (three-row) DB-15 connector.
VGA/SVGA monitor
TRS
Componentization
verifying data integrity.

19. An area of memory that holds recently-accessed data.
Processing
DB-15
Cache
they plug into the motherboard to allow further expansion. 1. Magnetic Disk 2. Tape 3. Laser 4. Solid State Flash

20. How many pins is a SODIMM DDR2 DIMM?
200
the CPU
ECC
PS/2-style mouse

21. Speaker or microphone - Common color codes for connectors are: Red = Mic In - Blue = Line In - Green = Line Out
1600 x 1200
TRS
Processing
240

22. Number of Pins for Drives: 2. SCSI
PCIe - PCI - AGP - ESIA - and ISA
1. jumper 2. dip switch 3. push button switch 4. and configured with a separae SCSI BIOS
Redundant Array of Independant (Inexpensive) Disks.
50 - 68 - or 80

23. Surge
Random Access Memory (RAM)
Very Brief time (milliseconds) of too much voltage
Too much voltage
Power failure

24. Multicore CPUs share a common ____ _____ _____. Which can cause traffic bottlenecks as competing cores communicate on the main system bus.
Front Side Bus.
ATX - BTX - Micro ATX - ITX - NLX - and LPX
800 x 600
Firmware

25. The physical components that work together to make a computer system or network: - Keyboard - mouse - monitor - printer - Connectors and cables - Drives - Circuit boards
Input
RJ-45
CMOS
Hardware

26. What does SODIMM stand for?
34
Reduced Instruction - Set - Chips - Used in data collection - sensors - routers - and graphics processors.
Small Outline DIMM
Front Side Bus.

27. RAID 1+0 and 0+1 require ____ disks which are two disks that are striped and then mirrored or vise vera.
9-pin serial
Firewire 6-pin
Front Side Bus.
4

28. External modems most commonly connect to this port.
Serial
Very brief time (milliseconds) of too little voltage
CMOS
184

29. Serial mouse or external modem
Small Outline DIMM
RAMBUS Inline Memory Module - Comes in 184 and 232-pin slot
CMOS
B-9 serial

30. SVGA is ____ x_____
800 x 600
144
Reduced Instruction - Set - Chips - Used in data collection - sensors - routers - and graphics processors.
CMOS

31. Ethernet network
Joystick
9-pin serial
Complex -Instruction - Set - Chips - Used in General Purpose PCs
RJ-45

32. A special RAM chip powered and maintained by a small battery that holds basic configuration data a computer needs to start.
CMOS
50 - 68 - or 80
RJ-45
1. jumper 2. dip switch 3. push button switch 4. and configured with a separae SCSI BIOS

33. What does LCD stand for?
Liquid Crystal Display
detects and fixes corrupt data in RAM.
USB Type A
BIOS

34. The process of sending data to the computer. These devices include: - Mouse - Keyboard - Touchscreen
Networking and Communications
RAMBUS Inline Memory Module - Comes in 184 and 232-pin slot
Input
DB-15

35. The event of a program being loaded - retrieved - transmitted - or executed. Major components include: - CPU (Central Processing Unit) - RAM
Processing
DB-15
240
Storage

36. Before sending a power supply to the recycling facility...
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.
144
Synchronous Dynamic RAM. Data transfer is timed to the system clock. DDR replaced 168 SDRAM
Dynamic and Static - Dynamic - loses info in the absence of power. Static - retains info like a hard drive.

37. PGA stands for
1600 x 1200
9
Pin Grid Array
184

38. A type of memory that loses data when the power is no longer supplied to the component.
its used as 'Endlessly' rewritable and used primarily as surveillance camera footage.
Too much voltage
Volatile
detects and fixes corrupt data in RAM.

39. LGA stands for ______.
Componentization
Line Grid Array
a mini DIN Tip Sleeve Ring (TSR) 3.5 millimeter jack
DB-15

40. The actual speed of the CPU is governed by a _______ setting called the clock rate.
BIOS
Joystick
34
DSD and SSD (DSD - Dynamic State Drives SSD - Solid State Drives)

41. An example of firmware.
BIOS
verifying data integrity.
144
Radial Lines

42. 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.
detects and fixes corrupt data in RAM.
RJ-45
Power failure
Componentization

43. What is VRAM used for?
Front Side Bus.
video ram for the use of the Graphic Processing Unit (GPU). Not related to Virtual RAM.
50 - 68 - or 80
Very Brief time (milliseconds) of too much voltage

44. Software that has been permanently placed in a hardware component. An example is a BIOS chip.
Dynamic and Static - Dynamic - loses info in the absence of power. Static - retains info like a hard drive.
Power failure
BIOS
Firmware

45. QXGA is ____x____
Software
Reduced Instruction - Set - Chips - Used in data collection - sensors - routers - and graphics processors.
2048 x 1536
Line Grid Array

46. What does SIMM stand for?
verifying data integrity.
RJ-45
Single Inline Memory Module - has 30 or 72 contacts on only one side.
Componentization

47. An example of a device that uses a 6-pin Mini-DIN connector.
PS/2-style mouse
1600 x 1200
BIOS
144

48. 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.
Firewire 6-pin
order Boot sequence - Integrated devices - drive controllers - power supply settings
184
verifying data integrity.

49. What do the type types of Hard Drive acronyms stand for?
9-pin serial
Reduced Instruction - Set - Chips - Used in data collection - sensors - routers - and graphics processors.
DSD and SSD (DSD - Dynamic State Drives SSD - Solid State Drives)
Power failure

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

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