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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. 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.
Too much voltage
3
Networking and Communications
PS/2-style mouse

2. What is a Brownout?
Coaxial
Serial
VGA/SVGA monitor
Too little voltage

3. The act of keeping or maintaining data. These devices include: - Hard disk drive - Floppy disk drive - Optical drives (CD-ROM - DVD) - Flash drive
Storage
Cache
7 or 15 (powered)
184

4. SVGA is ____ x_____
Pin Grid Array
800 x 600
Synchronous Dynamic RAM. Data transfer is timed to the system clock. DDR replaced 168 SDRAM
50 - 68 - or 80

5. What are the two types of RAM?
VGA/SVGA monitor
Front Side Bus.
Dynamic and Static - Dynamic - loses info in the absence of power. Static - retains info like a hard drive.
Line Grid Array

6. RAID stands for _________.
184
Firmware
Very brief time (milliseconds) of too little voltage
Redundant Array of Independant (Inexpensive) Disks.

7. SDRAM sands for _______.
Radial Lines
Single Inline Memory Module - has 30 or 72 contacts on only one side.
Synchronous Dynamic RAM. Data transfer is timed to the system clock. DDR replaced 168 SDRAM
9-pin serial

8. Video cameras (most common) Less commonly - similar devices that use USB connectors such as printers or external drives
PS/2-style mouse
DSD and SSD (DSD - Dynamic State Drives SSD - Solid State Drives)
Firewire 6-pin
50 - 68 - or 80

9. What is Virtual RAM?
Too little voltage
1600 x 1200
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.
Small Outline DIMM

10. RAID 5 has at least ___ hard drives.
Input
3
verifying data integrity.
Single Inline Memory Module - has 30 or 72 contacts on only one side.

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

12. The actual speed of the CPU is governed by a _______ setting called the clock rate.
DB-15
BIOS
order Boot sequence - Integrated devices - drive controllers - power supply settings
RAMBUS Inline Memory Module - Comes in 184 and 232-pin slot

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

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14. The event of a program being loaded - retrieved - transmitted - or executed. Major components include: - CPU (Central Processing Unit) - RAM
Processing
Error Correction Code.
DSD and SSD (DSD - Dynamic State Drives SSD - Solid State Drives)
Volatile

15. QXGA is ____x____
Cache
Software
240
2048 x 1536

16. What does ECC stand for?
Dynamic and Static - Dynamic - loses info in the absence of power. Static - retains info like a hard drive.
ATX - BTX - Micro ATX - ITX - NLX - and LPX
Line Grid Array
Error Correction Code.

17. Serial ports have this many pins.
RJ-11
B-9 serial
RJ-45
9

18. A temporary data storage location that can be read from and written to.
Single Inline Memory Module - has 30 or 72 contacts on only one side.
Random Access Memory (RAM)
Cathode Ray Tube
Componentization

19. A serial mouse connects to a computer with this connector.
9-pin serial
144
3
Error Correction Code.

20. BIOS allows you to do 4 things - what are they?
order Boot sequence - Integrated devices - drive controllers - power supply settings
Single Inline Memory Module - has 30 or 72 contacts on only one side.
RJ-11
Front Side Bus.

21. Ethernet network
DB-15
Firmware
RJ-45
Serial

22. 10Base-2 Ethernet uses this cable.
Front Side Bus.
Coaxial
tasks or 'Threads'
BIOS

23. How many pins is a DDR DIMM?
184
Firewire 6-pin
Very brief time (milliseconds) of too little voltage
the CPU

24. An example of a device that uses a 6-pin Mini-DIN connector.
PS/2-style mouse
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.
Storage
Firmware

25. What are the 5 Expansion Slot types - Daughter Boards or Riser Boards?
PCIe - PCI - AGP - ESIA - and ISA
Networking and Communications
Pin Grid Array
800 x 600

26. An example of a device that uses a low-density (two-row) male DB-15 connector.
ATX - BTX - Micro ATX - ITX - NLX - and LPX
Joystick
2048 x 1536
Error Correction Code.

27. The physical components that work together to make a computer system or network: - Keyboard - mouse - monitor - printer - Connectors and cables - Drives - Circuit boards
9-pin serial
Networking and Communications
Dynamic and Static - Dynamic - loses info in the absence of power. Static - retains info like a hard drive.
Hardware

28. RAID 1+0 and 0+1 require ____ disks which are two disks that are striped and then mirrored or vise vera.
Line Grid Array
144
4
Single Inline Memory Module - has 30 or 72 contacts on only one side.

29. Multicore CPUs share a common ____ _____ _____. Which can cause traffic bottlenecks as competing cores communicate on the main system bus.
RJ-45
Front Side Bus.
7 or 15 (powered)
Standardization

30. What is a Sag?
tasks or 'Threads'
Very brief time (milliseconds) of too little voltage
Too much voltage
5.25

31. Surge
verifying data integrity.
Processing
Too much voltage
Random Access Memory (RAM)

32. This device converts a visual input into a binary stream through an analog-to-digital conversion (ADC)
Radial Lines
tasks or 'Threads'
CMOS
they plug into the motherboard to allow further expansion. 1. Magnetic Disk 2. Tape 3. Laser 4. Solid State Flash

33. A special RAM chip powered and maintained by a small battery that holds basic configuration data a computer needs to start.
CMOS
Coaxial
DB-25 parallel
CMOS

34. What is a Blackout?
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.
Power failure
50 - 68 - or 80
Software

35. Speaker or microphone - Common color codes for connectors are: Red = Mic In - Blue = Line In - Green = Line Out
144
CMOS
DB-15
TRS

36. UXGA is _____x_____
Software
1600 x 1200
Joystick
184

37. What does SODIMM stand for?
PCIe - PCI - AGP - ESIA - and ISA
9-pin serial
Small Outline DIMM
Input

38. How many pins is a MICRODIMM DIMM?
CMOS
TRS
144
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.

39. What does SIMM stand for?
Single Inline Memory Module - has 30 or 72 contacts on only one side.
Power failure
Redundant Array of Independant (Inexpensive) Disks.
tasks or 'Threads'

40. Parity is used in some _____________ - hard drives - and RAM.
Power failure
the CPU
Network communications
RAMBUS Inline Memory Module - Comes in 184 and 232-pin slot

41. 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.
200
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.
Complex -Instruction - Set - Chips - Used in General Purpose PCs
DB-15

42. Number of Pins for Drives: 3. SATA
9-pin serial
7 or 15 (powered)
order Boot sequence - Integrated devices - drive controllers - power supply settings
RAMBUS Inline Memory Module - Comes in 184 and 232-pin slot

43. Internal modem or telephone
RJ-11
PCIe - PCI - AGP - ESIA - and ISA
Software
DB-15

44. What does LCD stand for?
Processing
Liquid Crystal Display
Software
RAMBUS Inline Memory Module - Comes in 184 and 232-pin slot

45. How many pins is a SODIMM DDR2 DIMM?
34
the CPU
200
RJ-45

46. XGA is ____x_____
the CPU
Componentization
1024 x 786
Dynamic and Static - Dynamic - loses info in the absence of power. Static - retains info like a hard drive.

47. What do the type types of Hard Drive acronyms stand for?
800 x 600
1024 x 786
1600 x 1200
DSD and SSD (DSD - Dynamic State Drives SSD - Solid State Drives)

48. Both Parity and _______ decrease efficiency - but increase reliability in RAM.
ECC
7 or 15 (powered)
BIOS
Processing

49. An example of a device that uses a TRS connector.
Speaker
Cache
144
3

50. External modems most commonly connect to this port.
Serial
PS/2-style mouse
DSD and SSD (DSD - Dynamic State Drives SSD - Solid State Drives)
DB-25 parallel