CompTIA - Hardware-intensive Mini-review
Strong focus on hardware elements, not specific to any particular A+ section.
- 1.
When describing a CPU, what does "45 nm" refer to?
- A.
The energy wavelength that powers it.
- B.
The manufacturing process used to produce it.
- C.
The thickness of the silicon wafer it came from.
- D.
The factory in New Mexico (NM) where it was made.
- E.
The processor's "code-name".
Correct Answer
B. The manufacturing process used to produce it.Explanation
The manufacturing process for a processor describes the size of the components on the die.Rate this question:
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- 2.
What is the bus clock speed of PC8500 DDR2 SDRAM?
- A.
8500 MHz
- B.
266 MHz
- C.
533 MHz
- D.
1066 MHz
- E.
8.5 GHz
Correct Answer
C. 533 MHzExplanation
PC8500 has a 533 MHz bus clock speed and a 1066 MHz transfer rate.Rate this question:
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- 3.
What type of cable, at a minimum, must be used for Gigabit ethernet?
- A.
Cat 3
- B.
Cat 4e
- C.
Cat 5
- D.
Cat 10e
- E.
Cat Stevens
Correct Answer
C. Cat 5Explanation
Cat 5 is the lowest grade of UTP cable that can provide Gigabit data throughput.Rate this question:
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- 4.
In referring to computer components and materials, what is TIM short for?
- A.
Timing Interface Mode.
- B.
Transistor Impact Module.
- C.
Thermal Inversion Mainframe.
- D.
Thermal Interface Material.
- E.
The sorcerer from "Monty Python and the Holy Grail."
Correct Answer
D. Thermal Interface Material.Explanation
Thermal interface material helps transfer heat from the processor to the heatsink.Rate this question:
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- 5.
How many pins does a PCIe power connector have?
- A.
4
- B.
8
- C.
6
- D.
20
- E.
247
Correct Answer
C. 6Explanation
The PCIe power connector, often used for video cards, has 6 pins: three ground pins, two +12v and one unused.Rate this question:
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- 6.
What is the advantage of using LCD monitors instead of CRT monitors?
- A.
Lighter weight.
- B.
Less heat.
- C.
Takes up less space.
- D.
Less power usage.
- E.
All of the above.
Correct Answer
E. All of the above.Explanation
When compared to CRTs with similar-sized screens, LCD monitors are lightweight, use less power and produce less heat, and have a smaller footprint area.Rate this question:
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- 7.
Which of the following is most likely to interfere with a home wireless network (WLAN)?
- A.
Convection oven.
- B.
TV remote.
- C.
Cordless phone.
- D.
Running car engine.
- E.
Background radiation from the Big Bang.
Correct Answer
C. Cordless phone.Explanation
Many cordless phones operate in the 2.4 GHz frequency range, similar to that used by wireless networking devices.Rate this question:
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- 8.
What kind of fire extinguisher is most appropriate for computer/electronics related fires?
- A.
Type C
- B.
Type A
- C.
Type F
- D.
Type 2
- E.
Type O-
Correct Answer
A. Type CExplanation
Type C fire extinguishers are intended for use on electrical fires.Rate this question:
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- 9.
Terms like SLI and CrossFire refer to which computer component?
- A.
The CPU.
- B.
The PSU.
- C.
The video card.
- D.
The memory.
- E.
The KGB.
Correct Answer
C. The video card.Explanation
SLI (copyright by NVidia) and CrossFire (copyright by ATI) are multi-card arrangements for video adapters.Rate this question:
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- 10.
The number "64", when used in reference to a processor, typically means:
- A.
You need 64 of them to run a computer.
- B.
You can't use it if you are over 64 years old.
- C.
The processor contains 64 million transistors.
- D.
The processor supports 64-bit computing mode.
- E.
It costs 64 times more than a typical processor.
Correct Answer
D. The processor supports 64-bit computing mode.Explanation
A 64-bit processor can be used with a compatible 64-bit operating system. It allows for much more memory addressing than the original 4GB of RAM that was the limit for 32-bit.Rate this question:
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- 11.
What does ACPI stand for?
- A.
Advanced Configuration and Power Interface.
- B.
Alternate Control Processing Interface.
- C.
Awaiting Competent Procedural Instructions.
- D.
Accelerated Central Processing Initiative.
- E.
Anti Cow Personnel Invasion.
Correct Answer
A. Advanced Configuration and Power Interface.Explanation
ACPI is a technical configuration standard that allows for efficient power management in a computer system.Rate this question:
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- 12.
What is a Peltier cooler?
- A.
A home air-conditioning device that can be controlled by your computer.
- B.
A type of sub-zero quantum-computing device that speeds up your computer.
- C.
A thermoelectric cooling device that can cool a processor in a very efficient manner.
- D.
A heatsink made of a special alloy called 'Peltier metal'.
- E.
Someone named Peltier, who is much cooler than you.
Correct Answer
C. A thermoelectric cooling device that can cool a processor in a very efficient manner.Explanation
Peltier coolers use the thermoelectric effect to transfer heat from the processor and dissipate it through a heatsink.Rate this question:
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- 13.
Where is a PCIe 16x slot located, and what is it typically used for?
- A.
On the motherboard, on the back edge and close to the CPU socket, used for video adapter cards.
- B.
On the motherboard, near the bottom edge, used for TV tuner cards.
- C.
On the motherboard, near the top edge, used for a spare processor.
- D.
On the front panel of the computer case, used for inserting 16x CD and DVD media.
- E.
On your mailbox, used by postal employees to drop off your newest mail-order computer gadget.
Correct Answer
A. On the motherboard, on the back edge and close to the CPU socket, used for video adapter cards.Explanation
PCIe 16x slots are usually used for video cards. They're usually the expansion slot farthest from the bottom of the board, close to the CPU socket.Rate this question:
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- 14.
Overclocking functions and features are located in your:
- A.
Motherboard.
- B.
Processor.
- C.
Memory modules.
- D.
Power supply.
- E.
Imagination.
Correct Answer
A. Motherboard.Explanation
Overclocking functionality is determined by your motherboard's CMOS customization features, and varies by board and by manufacturer.Rate this question:
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- 15.
Latency, in regards to computer technology, is typically measured in:
- A.
Nanometers.
- B.
Picoferads.
- C.
Nanoseconds.
- D.
Micrograms.
- E.
Milliamps.
Correct Answer
C. Nanoseconds.Explanation
Latency, a measure of time delay, is typically given in nanoseconds.Rate this question:
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- 16.
Twisted Nematic (TN) is a type of:
- A.
Voltage regulation.
- B.
LCD panel technology.
- C.
Networking cable construction.
- D.
Comic-book supervillain.
- E.
Computer processor.
Correct Answer
B. LCD panel technology.Explanation
Twisted nematic LCD panels are affordable, fast, but somewhat lacking in quality compared to IPS and VA types.Rate this question:
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- 17.
CFM, in regards to computer cooling technology, stands for:
- A.
Carbon Fluoride Matrix.
- B.
Cathode Flux Material.
- C.
Cool Flow Management.
- D.
Cubic Feet per Minute.
- E.
Cat Fuzz Monitor.
Correct Answer
D. Cubic Feet per Minute.Explanation
Computer case fans measure airflow in cubic feet per minute, abbreviated CFM. More CFM means more airflow, and most likely better cooling.Rate this question:
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- 18.
An example of an HID would be:
- A.
An all-copper heatsink.
- B.
An eight-core server-quality processor.
- C.
A surround-sound gaming audio system.
- D.
A multi-format optical disk burning drive.
- E.
A mouse.
Correct Answer
E. A mouse.Explanation
HID stands for Human Interface Device. This category includes input devices like keyboards and mice.Rate this question:
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