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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 serial mouse connects to a computer with this connector.
Single Inline Memory Module - has 30 or 72 contacts on only one side.
9-pin serial
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.
Random Access Memory (RAM)

2. How many pins is a MICRODIMM DIMM?
Complex -Instruction - Set - Chips - Used in General Purpose PCs
240
Redundant Array of Independant (Inexpensive) Disks.
144

3. The actual speed of the CPU is governed by a _______ setting called the clock rate.
2048 x 1536
BIOS
Networking and Communications
Serial

4. LGA stands for ______.
B-9 serial
Line Grid Array
Pin Grid Array
DSD and SSD (DSD - Dynamic State Drives SSD - Solid State Drives)

5. This device converts a visual input into a binary stream through an analog-to-digital conversion (ADC)
the motherboard
CMOS
5.25
Synchronous Dynamic RAM. Data transfer is timed to the system clock. DDR replaced 168 SDRAM

6. 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
2048 x 1536
240
Network communications

7. 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)
PS/2-style mouse
Cathode Ray Tube
Networking and Communications

8. 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.
PCIe - PCI - AGP - ESIA - and ISA
verifying data integrity.
Synchronous Dynamic RAM. Data transfer is timed to the system clock. DDR replaced 168 SDRAM
Firmware

9. 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.
a mini DIN Tip Sleeve Ring (TSR) 3.5 millimeter jack
Standardization
the CPU
240

10. UXGA is _____x_____
1600 x 1200
the CPU
BIOS
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.

11. An example of a device that uses a TRS connector.
Speaker
50 - 68 - or 80
removable chips on the motherboard
PS/2-style mouse

12. What do the type types of Hard Drive acronyms stand for?
B-9 serial
Complex -Instruction - Set - Chips - Used in General Purpose PCs
DSD and SSD (DSD - Dynamic State Drives SSD - Solid State Drives)
Very brief time (milliseconds) of too little voltage

13. Serial ports have this many pins.
Pin Grid Array
Networking and Communications
9
Firewire 6-pin

14. What does SODIMM stand for?
order Boot sequence - Integrated devices - drive controllers - power supply settings
Small Outline DIMM
144
Reduced Instruction - Set - Chips - Used in data collection - sensors - routers - and graphics processors.

15. Multicore CPUs share a common ____ _____ _____. Which can cause traffic bottlenecks as competing cores communicate on the main system bus.
Power failure
RJ-45
RAMBUS Inline Memory Module - Comes in 184 and 232-pin slot
Front Side Bus.

16. 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-15
2048 x 1536
RJ-11
B-9 serial

17. CPUS: What is CISC?
Complex -Instruction - Set - Chips - Used in General Purpose PCs
PCIe - PCI - AGP - ESIA - and ISA
Too little voltage
its used as 'Endlessly' rewritable and used primarily as surveillance camera footage.

18. What is a Sag?
TRS
the motherboard
Networking and Communications
Very brief time (milliseconds) of too little voltage

19. Internal modem or telephone
CMOS
RJ-11
Joystick
Pin Grid Array

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

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21. The process of the computer presenting - displaying - or otherwise giving data. These devices include: - Video - Audio - Printing
detects and fixes corrupt data in RAM.
Output
Volatile
Componentization

22. External modems most commonly connect to this port.
Serial
200
removable chips on the motherboard
9

23. The BIOS is stored on the _______ chip that is on the motherboard.
CMOS
CMOS
9-pin serial
Error Correction Code.

24. What does ECC stand for?
order Boot sequence - Integrated devices - drive controllers - power supply settings
Serial
Error Correction Code.
Too little voltage

25. What are the 5 Expansion Slot types - Daughter Boards or Riser Boards?
Pin Grid Array
PCIe - PCI - AGP - ESIA - and ISA
a mini DIN Tip Sleeve Ring (TSR) 3.5 millimeter jack
50 - 68 - or 80

26. Both Parity and _______ decrease efficiency - but increase reliability in RAM.
BIOS
Joystick
ECC
144

27. BIOS allows you to do 4 things - what are they?
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
Speaker
Reduced Instruction - Set - Chips - Used in data collection - sensors - routers - and graphics processors.

28. Parity is used in some _____________ - hard drives - and RAM.
tasks or 'Threads'
Software
Network communications
removable chips on the motherboard

29. DSD or Dynamic State Drives are organized into Tracks or Rings - and sectors or _____.
Radial Lines
Complex -Instruction - Set - Chips - Used in General Purpose PCs
Componentization
800 x 600

30. Number of Pins for Drives: 2. SCSI
they plug into the motherboard to allow further expansion. 1. Magnetic Disk 2. Tape 3. Laser 4. Solid State Flash
Storage
50 - 68 - or 80
Cathode Ray Tube

31. What is a Brownout?
Too little voltage
Small Outline DIMM
video ram for the use of the Graphic Processing Unit (GPU). Not related to Virtual RAM.
Random Access Memory (RAM)

32. Printers
Redundant Array of Independant (Inexpensive) Disks.
VGA/SVGA monitor
DB-25 parallel
240

33. How many pins is a DDR2 DIMM?
240
Network communications
Firmware
VGA/SVGA monitor

34. How many pins is a DDR DIMM?
7 or 15 (powered)
BIOS
184
Liquid Crystal Display

35. What does CRT stand for?
ECC
Dynamic and Static - Dynamic - loses info in the absence of power. Static - retains info like a hard drive.
Cathode Ray Tube
Line Grid Array

36. Printer - Scanner - Camera - Printer - Mouse - Keyboard - External CD-ROM drive - MP3 player - PDA
video ram for the use of the Graphic Processing Unit (GPU). Not related to Virtual RAM.
5.25
3
USB Type A

37. What is Virtual RAM?
DB-25
Redundant Array of Independant (Inexpensive) Disks.
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.
1600 x 1200

38. The act of keeping or maintaining data. These devices include: - Hard disk drive - Floppy disk drive - Optical drives (CD-ROM - DVD) - Flash drive
DB-25 parallel
4
5.25
Storage

39. What does ECC do?
video ram for the use of the Graphic Processing Unit (GPU). Not related to Virtual RAM.
Error Correction Code.
detects and fixes corrupt data in RAM.
DB-15

40. What is the formal name of the 'headphone jack'?
a mini DIN Tip Sleeve Ring (TSR) 3.5 millimeter jack
Power failure
Input
RJ-11

41. Number of Pins for Drives: 4. FDD
verifying data integrity.
34
5.25
Hardware

42. RAID 1+0 and 0+1 require ____ disks which are two disks that are striped and then mirrored or vise vera.
DB-25 parallel
ATX - BTX - Micro ATX - ITX - NLX - and LPX
4
Componentization

43. Number of Pins for Drives: 3. SATA
9-pin serial
7 or 15 (powered)
USB Type A
CMOS

44. What is a Blackout?
Power failure
Redundant Array of Independant (Inexpensive) Disks.
the motherboard
ATX - BTX - Micro ATX - ITX - NLX - and LPX

45. RAID 5 has at least ___ hard drives.
3
5.25
DB-25
Standardization

46. Video cameras (most common) Less commonly - similar devices that use USB connectors such as printers or external drives
Firewire 6-pin
Small Outline DIMM
240
PS/2-style mouse

47. PGA stands for
34
CMOS
Random Access Memory (RAM)
Pin Grid Array

48. 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
Software
Standardization
they plug into the motherboard to allow further expansion. 1. Magnetic Disk 2. Tape 3. Laser 4. Solid State Flash

49. An example of firmware.
184
DB-25 parallel
BIOS
Synchronous Dynamic RAM. Data transfer is timed to the system clock. DDR replaced 168 SDRAM

50. XGA is ____x_____
240
Networking and Communications
1024 x 786
Too much voltage