CompTIA - Hardware-intensive Mini-review

1. The number "64", when used in reference to a processor, typically means:

You need 64 of them to run a computer.

You can't use it if you are over 64 years old.

The processor contains 64 million transistors.

The processor supports 64-bit computing mode.

It costs 64 times more than a typical processor.

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.

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.

2. What is the advantage of using LCD monitors instead of CRT monitors?

Lighter weight.

Less heat.

Takes up less space.

Less power usage.

All of the above.

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.

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.

3. What type of cable, at a minimum, must be used for Gigabit ethernet?

Cat 3

Cat 4e

Cat 5

Cat 10e

Cat Stevens

Cat 5 is the lowest grade of UTP cable that can provide Gigabit data throughput.

Explanation

Cat 5 is the lowest grade of UTP cable that can provide Gigabit data throughput.

4. What does ACPI stand for?

Advanced Configuration and Power Interface.

Alternate Control Processing Interface.

Awaiting Competent Procedural Instructions.

Accelerated Central Processing Initiative.

Anti Cow Personnel Invasion.

ACPI is a technical configuration standard that allows for efficient power management in a computer system.

Explanation

ACPI is a technical configuration standard that allows for efficient power management in a computer system.

5. Latency, in regards to computer technology, is typically measured in:

Nanometers.

Picoferads.

Nanoseconds.

Micrograms.

Milliamps.

Latency, a measure of time delay, is typically given in nanoseconds.

Explanation

Latency, a measure of time delay, is typically given in nanoseconds.

6. Where is a PCIe 16x slot located, and what is it typically used for?

On the motherboard, on the back edge and close to the CPU socket, used for video adapter cards.

On the motherboard, near the bottom edge, used for TV tuner cards.

On the motherboard, near the top edge, used for a spare processor.

On the front panel of the computer case, used for inserting 16x CD and DVD media.

On your mailbox, used by postal employees to drop off your newest mail-order computer gadget.

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.

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.

7. Which of the following is most likely to interfere with a home wireless network (WLAN)?

Convection oven.

TV remote.

Cordless phone.

Running car engine.

Background radiation from the Big Bang.

Many cordless phones operate in the 2.4 GHz frequency range, similar to that used by wireless networking devices.

Explanation

Many cordless phones operate in the 2.4 GHz frequency range, similar to that used by wireless networking devices.

8. What kind of fire extinguisher is most appropriate for computer/electronics related fires?

Type C

Type A

Type F

Type 2

Type O-

Type C fire extinguishers are intended for use on electrical fires.

Explanation

Type C fire extinguishers are intended for use on electrical fires.

9. Terms like SLI and CrossFire refer to which computer component?

The CPU.

The PSU.

The video card.

The memory.

The KGB.

SLI (copyright by NVidia) and CrossFire (copyright by ATI) are multi-card arrangements for video adapters.

Explanation

SLI (copyright by NVidia) and CrossFire (copyright by ATI) are multi-card arrangements for video adapters.

10. What is a Peltier cooler?

A home air-conditioning device that can be controlled by your computer.

A type of sub-zero quantum-computing device that speeds up your computer.

A thermoelectric cooling device that can cool a processor in a very efficient manner.

A heatsink made of a special alloy called 'Peltier metal'.

Someone named Peltier, who is much cooler than you.

Peltier coolers use the thermoelectric effect to transfer heat from the processor and dissipate it through a heatsink.

Explanation

Peltier coolers use the thermoelectric effect to transfer heat from the processor and dissipate it through a heatsink.

11. In referring to computer components and materials, what is TIM short for?

Timing Interface Mode.

Transistor Impact Module.

Thermal Inversion Mainframe.

Thermal Interface Material.

The sorcerer from "Monty Python and the Holy Grail."

Thermal interface material helps transfer heat from the processor to the heatsink.

Explanation

Thermal interface material helps transfer heat from the processor to the heatsink.

12. Overclocking functions and features are located in your:

Motherboard.

Processor.

Memory modules.

Power supply.

Imagination.

Overclocking functionality is determined by your motherboard's CMOS customization features, and varies by board and by manufacturer.

Explanation

Overclocking functionality is determined by your motherboard's CMOS customization features, and varies by board and by manufacturer.

13. What is the bus clock speed of PC8500 DDR2 SDRAM?

8500 MHz

266 MHz

533 MHz

1066 MHz

8.5 GHz

PC8500 has a 533 MHz bus clock speed and a 1066 MHz transfer rate.

Explanation

PC8500 has a 533 MHz bus clock speed and a 1066 MHz transfer rate.

14. When describing a CPU, what does "45 nm" refer to?

The energy wavelength that powers it.

The manufacturing process used to produce it.

The thickness of the silicon wafer it came from.

The factory in New Mexico (NM) where it was made.

The processor's "code-name".

The manufacturing process for a processor describes the size of the components on the die.

Explanation

The manufacturing process for a processor describes the size of the components on the die.

15. How many pins does a PCIe power connector have?

4

8

6

20

247

The PCIe power connector, often used for video cards, has 6 pins: three ground pins, two +12v and one unused.

Explanation

The PCIe power connector, often used for video cards, has 6 pins: three ground pins, two +12v and one unused.

16. CFM, in regards to computer cooling technology, stands for:

Carbon Fluoride Matrix.

Cathode Flux Material.

Cool Flow Management.

Cubic Feet per Minute.

Cat Fuzz Monitor.

Computer case fans measure airflow in cubic feet per minute, abbreviated CFM. More CFM means more airflow, and most likely better cooling.

Explanation

Computer case fans measure airflow in cubic feet per minute, abbreviated CFM. More CFM means more airflow, and most likely better cooling.

17. Twisted Nematic (TN) is a type of:

Voltage regulation.

LCD panel technology.

Networking cable construction.

Comic-book supervillain.

Computer processor.

Twisted nematic LCD panels are affordable, fast, but somewhat lacking in quality compared to IPS and VA types.

Explanation

Twisted nematic LCD panels are affordable, fast, but somewhat lacking in quality compared to IPS and VA types.

18. An example of an HID would be:

An all-copper heatsink.

An eight-core server-quality processor.

A surround-sound gaming audio system.

A multi-format optical disk burning drive.

A mouse.

HID stands for Human Interface Device. This category includes input devices like keyboards and mice.

Explanation

HID stands for Human Interface Device. This category includes input devices like keyboards and mice.