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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 TRS connector.
Speaker
144
DB-25
200

2. How many pins is a DDR DIMM?
800 x 600
184
the CPU
40 or 80

3. What does ECC stand for?
Pin Grid Array
Dynamic and Static - Dynamic - loses info in the absence of power. Static - retains info like a hard drive.
Too little voltage
Error Correction Code.

4. CPUS: What is CISC?
144
Complex -Instruction - Set - Chips - Used in General Purpose PCs
40 or 80
Volatile

5. An area of memory that holds recently-accessed data.
Firmware
Cache
144
ECC

6. XGA is ____x_____
34
verifying data integrity.
1024 x 786
2048 x 1536

7. What does SODIMM stand for?
Standardization
CMOS
Small Outline DIMM
9

8. What does ECC do?
1024 x 786
DB-25
Small Outline DIMM
detects and fixes corrupt data in RAM.

9. Level two cache is located on _______.
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.
50 - 68 - or 80
the motherboard
Joystick

10. What are the 6 form factors of motherboards?
detects and fixes corrupt data in RAM.
ATX - BTX - Micro ATX - ITX - NLX - and LPX
34
Networking and Communications

11. The actual speed of the CPU is governed by a _______ setting called the clock rate.
BIOS
PCIe - PCI - AGP - ESIA - and ISA
Dynamic and Static - Dynamic - loses info in the absence of power. Static - retains info like a hard drive.
Small Outline DIMM

12. Speaker or microphone - Common color codes for connectors are: Red = Mic In - Blue = Line In - Green = Line Out
TRS
Liquid Crystal Display
9
Small Outline DIMM

13. An example of a device that uses a 6-pin Mini-DIN connector.
Too much voltage
PCIe - PCI - AGP - ESIA - and ISA
PS/2-style mouse
144

14. 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.
Componentization
1600 x 1200
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.
USB Type A

15. What are the 4 main types of storage?
Small Outline DIMM
Too much voltage
they plug into the motherboard to allow further expansion. 1. Magnetic Disk 2. Tape 3. Laser 4. Solid State Flash
Line Grid Array

16. The physical components that work together to make a computer system or network: - Keyboard - mouse - monitor - printer - Connectors and cables - Drives - Circuit boards
Hardware
Pin Grid Array
Redundant Array of Independant (Inexpensive) Disks.
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.

17. RAID stands for _________.
Cache
DB-15
Redundant Array of Independant (Inexpensive) Disks.
Power failure

18. Internal modem or telephone
240
verifying data integrity.
BIOS
RJ-11

19. 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)
Power failure
DB-15
Networking and Communications
Software

20. An example of a device that uses a high-density (three-row) DB-15 connector.
50 - 68 - or 80
Line Grid Array
VGA/SVGA monitor
PS/2-style mouse

21. LGA stands for ______.
Random Access Memory (RAM)
ATX - BTX - Micro ATX - ITX - NLX - and LPX
Line Grid Array
Complex -Instruction - Set - Chips - Used in General Purpose PCs

22. Number of Pins for Drives: 2. SCSI
TRS
50 - 68 - or 80
Very Brief time (milliseconds) of too much voltage
200

23. An example of a device that uses a low-density (two-row) male DB-15 connector.
verifying data integrity.
detects and fixes corrupt data in RAM.
Joystick
Processing

24. The process of sending data to the computer. These devices include: - Mouse - Keyboard - Touchscreen
144
Input
DB-25 parallel
9-pin serial

25. 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.
Redundant Array of Independant (Inexpensive) Disks.
50 - 68 - or 80
5.25

26. Number of Pins for Drives: 3. SATA
9-pin serial
7 or 15 (powered)
Complex -Instruction - Set - Chips - Used in General Purpose PCs
verifying data integrity.

27. Number of Pins for Drives: 1. PATA - ATA - IDE - or EIDE
40 or 80
Networking and Communications
Firmware
4

28. CPUs: What is RISC?
Reduced Instruction - Set - Chips - Used in data collection - sensors - routers - and graphics processors.
Serial
VGA/SVGA monitor
Coaxial

29. Both Parity and _______ decrease efficiency - but increase reliability in RAM.
Pin Grid Array
ECC
1600 x 1200
2048 x 1536

30. 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.
240
Standardization
Synchronous Dynamic RAM. Data transfer is timed to the system clock. DDR replaced 168 SDRAM
40 or 80

31. level three cache is located on _________.
Redundant Array of Independant (Inexpensive) Disks.
BIOS
removable chips on the motherboard
9

32. External modems most commonly connect to this port.
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.
TRS
Serial
DSD and SSD (DSD - Dynamic State Drives SSD - Solid State Drives)

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

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34. Surge
Redundant Array of Independant (Inexpensive) Disks.
Too much voltage
Synchronous Dynamic RAM. Data transfer is timed to the system clock. DDR replaced 168 SDRAM
Firewire 6-pin

35. An example of firmware.
VGA/SVGA monitor
BIOS
Line Grid Array
Networking and Communications

36. 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.
240
verifying data integrity.
Storage
VGA/SVGA monitor

37. RAID 1+0 and 0+1 require ____ disks which are two disks that are striped and then mirrored or vise vera.
Coaxial
DB-25 parallel
4
800 x 600

38. Printer - Scanner - Camera - Printer - Mouse - Keyboard - External CD-ROM drive - MP3 player - PDA
ATX - BTX - Micro ATX - ITX - NLX - and LPX
RAMBUS Inline Memory Module - Comes in 184 and 232-pin slot
Componentization
USB Type A

39. How many pins is a SODIMM DDR DIMM?
BIOS
Redundant Array of Independant (Inexpensive) Disks.
144
verifying data integrity.

40. Video cameras (most common) Less commonly - similar devices that use USB connectors such as printers or external drives
Firewire 6-pin
PS/2-style mouse
240
1600 x 1200

41. SDRAM sands for _______.
Very brief time (milliseconds) of too little voltage
Software
Synchronous Dynamic RAM. Data transfer is timed to the system clock. DDR replaced 168 SDRAM
Output

42. The BIOS is stored on the _______ chip that is on the motherboard.
Coaxial
Power failure
CMOS
Firmware

43. What is Virtual RAM?
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
Too little voltage
144

44. 10Base-2 Ethernet uses this cable.
Coaxial
DSD and SSD (DSD - Dynamic State Drives SSD - Solid State Drives)
Speaker
Complex -Instruction - Set - Chips - Used in General Purpose PCs

45. BIOS allows you to do 4 things - what are they?
order Boot sequence - Integrated devices - drive controllers - power supply settings
Dynamic and Static - Dynamic - loses info in the absence of power. Static - retains info like a hard drive.
Too little voltage
Coaxial

46. The process of the computer presenting - displaying - or otherwise giving data. These devices include: - Video - Audio - Printing
Volatile
DB-15
Output
Dynamic and Static - Dynamic - loses info in the absence of power. Static - retains info like a hard drive.

47. How many pins is a DDR2 DIMM?
the motherboard
240
Line Grid Array
Componentization

48. SVGA is ____ x_____
Reduced Instruction - Set - Chips - Used in data collection - sensors - routers - and graphics processors.
800 x 600
RAMBUS Inline Memory Module - Comes in 184 and 232-pin slot
7 or 15 (powered)

49. A special RAM chip powered and maintained by a small battery that holds basic configuration data a computer needs to start.
CMOS
the CPU
Redundant Array of Independant (Inexpensive) Disks.
video ram for the use of the Graphic Processing Unit (GPU). Not related to Virtual RAM.

50. What do the type types of Hard Drive acronyms stand for?
Speaker
its used as 'Endlessly' rewritable and used primarily as surveillance camera footage.
DSD and SSD (DSD - Dynamic State Drives SSD - Solid State Drives)
charged coupled device (CCD)