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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. What does ECC do?
detects and fixes corrupt data in RAM.
the CPU
Networking and Communications
1024 x 786

2. How many pins is a DDR3 DIMM?
BIOS
240
144
order Boot sequence - Integrated devices - drive controllers - power supply settings

3. The physical components that work together to make a computer system or network: - Keyboard - mouse - monitor - printer - Connectors and cables - Drives - Circuit boards
240
Speaker
Hardware
its used as 'Endlessly' rewritable and used primarily as surveillance camera footage.

4. An area of memory that holds recently-accessed data.
DSD and SSD (DSD - Dynamic State Drives SSD - Solid State Drives)
Too much voltage
9-pin serial
Cache

5. What is a Blackout?
1600 x 1200
Joystick
Networking and Communications
Power failure

6. What does LCD stand for?
a mini DIN Tip Sleeve Ring (TSR) 3.5 millimeter jack
Liquid Crystal Display
9-pin serial
Redundant Array of Independant (Inexpensive) Disks.

7. This device converts a visual input into a binary stream through an analog-to-digital conversion (ADC)
DB-15
CMOS
a mini DIN Tip Sleeve Ring (TSR) 3.5 millimeter jack
Pin Grid Array

8. External modems most commonly connect to this port.
video ram for the use of the Graphic Processing Unit (GPU). Not related to Virtual RAM.
Too much voltage
Serial
9-pin serial

9. Parity is used in some _____________ - hard drives - and RAM.
Network communications
VGA/SVGA monitor
DB-15
PCIe - PCI - AGP - ESIA - and ISA

10. Serial ports have this many pins.
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.
tasks or 'Threads'
DB-25 parallel
9

11. CPUs: What is RISC?
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.
B-9 serial
144
Reduced Instruction - Set - Chips - Used in data collection - sensors - routers - and graphics processors.

12. Before sending a power supply to the recycling facility...
Too little voltage
Output
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.
USB Type A

13. RAID 5 has at least ___ hard drives.
charged coupled device (CCD)
1600 x 1200
Volatile
3

14. Level one cache is located on ___________.
3
the CPU
DSD and SSD (DSD - Dynamic State Drives SSD - Solid State Drives)
Input

15. What does SIMM stand for?
Input
144
Single Inline Memory Module - has 30 or 72 contacts on only one side.
the CPU

16. Printer - Scanner - Camera - Printer - Mouse - Keyboard - External CD-ROM drive - MP3 player - PDA
they plug into the motherboard to allow further expansion. 1. Magnetic Disk 2. Tape 3. Laser 4. Solid State Flash
USB Type A
800 x 600
detects and fixes corrupt data in RAM.

17. QXGA is ____x____
the CPU
2048 x 1536
Joystick
7 or 15 (powered)

18. 10Base-5 Ethernet and game ports use this cable
144
Front Side Bus.
DB-15
the CPU

19. How many pins is a SODIMM DDR DIMM?
DB-15
9-pin serial
144
detects and fixes corrupt data in RAM.

20. What is Virtual RAM?
Complex -Instruction - Set - Chips - Used in General Purpose PCs
Error Correction Code.
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.
1. jumper 2. dip switch 3. push button switch 4. and configured with a separae SCSI BIOS

21. The process of sending data to the computer. These devices include: - Mouse - Keyboard - Touchscreen
Cathode Ray Tube
Input
PS/2-style mouse
Cache

22. How many pins is a MICRODIMM DIMM?
144
charged coupled device (CCD)
ECC
they plug into the motherboard to allow further expansion. 1. Magnetic Disk 2. Tape 3. Laser 4. Solid State Flash

23. 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.
Synchronous Dynamic RAM. Data transfer is timed to the system clock. DDR replaced 168 SDRAM
DB-25
Componentization
40 or 80

24. An example of a device that uses a high-density (three-row) DB-15 connector.
RAMBUS Inline Memory Module - Comes in 184 and 232-pin slot
BIOS
VGA/SVGA monitor
they plug into the motherboard to allow further expansion. 1. Magnetic Disk 2. Tape 3. Laser 4. Solid State Flash

25. What does SODIMM stand for?
USB Type A
PCIe - PCI - AGP - ESIA - and ISA
9
Small Outline DIMM

26. The BIOS is stored on the _______ chip that is on the motherboard.
its used as 'Endlessly' rewritable and used primarily as surveillance camera footage.
5.25
CMOS
Synchronous Dynamic RAM. Data transfer is timed to the system clock. DDR replaced 168 SDRAM

27. Ethernet network
Random Access Memory (RAM)
RJ-45
Processing
BIOS

28. UXGA is _____x_____
1600 x 1200
the CPU
its used as 'Endlessly' rewritable and used primarily as surveillance camera footage.
BIOS

29. 10Base-2 Ethernet uses this cable.
DB-25 parallel
Coaxial
a mini DIN Tip Sleeve Ring (TSR) 3.5 millimeter jack
Small Outline DIMM

30. The actual speed of the CPU is governed by a _______ setting called the clock rate.
charged coupled device (CCD)
9-pin serial
BIOS
Very brief time (milliseconds) of too little voltage

31. Multicore CPUs share a common ____ _____ _____. Which can cause traffic bottlenecks as competing cores communicate on the main system bus.
Front Side Bus.
Firewire 6-pin
PS/2-style mouse
charged coupled device (CCD)

32. BIOS allows you to do 4 things - what are they?
order Boot sequence - Integrated devices - drive controllers - power supply settings
800 x 600
Liquid Crystal Display
144

33. 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.
Output
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.
verifying data integrity.
charged coupled device (CCD)

34. RAID 1+0 and 0+1 require ____ disks which are two disks that are striped and then mirrored or vise vera.
4
Cathode Ray Tube
Output
Software

35. PGA stands for
BIOS
Networking and Communications
Network communications
Pin Grid Array

36. Internal modem or telephone
Output
Too little voltage
RJ-11
CMOS

37. XGA is ____x_____
5.25
1024 x 786
Networking and Communications
they plug into the motherboard to allow further expansion. 1. Magnetic Disk 2. Tape 3. Laser 4. Solid State Flash

38. A serial mouse connects to a computer with this connector.
9-pin serial
1. jumper 2. dip switch 3. push button switch 4. and configured with a separae SCSI BIOS
RJ-45
ECC

39. How many pins is a DDR DIMM?
CMOS
184
Error Correction Code.
Redundant Array of Independant (Inexpensive) Disks.

40. The process of the computer presenting - displaying - or otherwise giving data. These devices include: - Video - Audio - Printing
50 - 68 - or 80
Output
240
BIOS

41. The event of a program being loaded - retrieved - transmitted - or executed. Major components include: - CPU (Central Processing Unit) - RAM
DB-25 parallel
Cathode Ray Tube
DB-15
Processing

42. An example of a device that uses a low-density (two-row) male DB-15 connector.
CMOS
Output
Joystick
9

43. What does ECC stand for?
Single Inline Memory Module - has 30 or 72 contacts on only one side.
Hardware
Error Correction Code.
RJ-11

44. A dime sized component of the camera head into which light enters and is converted into and electronic or video signal
Network communications
240
Serial
charged coupled device (CCD)

45. Number of Pins for Drives: 3. SATA
Standardization
7 or 15 (powered)
BIOS
BIOS

46. SDRAM sands for _______.
order Boot sequence - Integrated devices - drive controllers - power supply settings
the CPU
Synchronous Dynamic RAM. Data transfer is timed to the system clock. DDR replaced 168 SDRAM
Input

47. 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.
Networking and Communications
Line Grid Array
the CPU
DB-25

48. Number of Pins for Drives: 4. FDD
34
40 or 80
VGA/SVGA monitor
DSD and SSD (DSD - Dynamic State Drives SSD - Solid State Drives)

49. A temporary data storage location that can be read from and written to.
RAMBUS Inline Memory Module - Comes in 184 and 232-pin slot
Random Access Memory (RAM)
1600 x 1200
Error Correction Code.

50. An example of a device that uses a 6-pin Mini-DIN connector.
PS/2-style mouse
Volatile
9
Standardization