FREE NOCTI Computer Science Questions and Answers

Question 1

A twisted-pair cable that uses RJ-45 connectors has how many wires?

Accepted Answer

8

Answer

A twisted-pair cable that uses RJ-45 connectors typically has 8 wires. The RJ-45 connector is commonly used for Ethernet connections, and it follows the TIA/EIA-568 standard, which specifies that the cable should have 4 pairs of wires. Each pair consists of a twisted pair of wires, resulting in a total of 8 wires in the cable.

Question 2

Which of the following symbols can be used as a wildcard character in a filename when working at the command prompt?

Accepted Answer

?

Answer

The symbol "?" can be used as a wildcard character in a filename when working at the command prompt. This symbol represents a single unknown character and can be used to match any character in a filename. For example, if you want to find all files that start with "file" and have a three-letter extension, you can use the wildcard pattern "file???.*" to match any three characters after "file".

Question 3

Which of the following terms refers to the process by which a signal weakens as it travels long distances over a network?

Accepted Answer

Attenuation

Answer

Attenuation refers to the process by which a signal weakens as it travels long distances over a network. This can happen due to various factors such as resistance, interference, and dispersion. Amplifier repeater is not the correct answer as it refers to a device that boosts or amplifies a weak signal. Fade-out is also not the correct answer as it refers to a sudden loss of signal strength. Drop-down is not related to the weakening of a signal over a network.

Question 4

How many bits are in the SIMMs data path?

Accepted Answer

32

Answer

SIMM stands for Single In-Line Memory Module, which is a type of computer memory module. The data path refers to the width of the memory bus, which determines the amount of data that can be transferred between the memory module and the processor in a single clock cycle. In this case, the correct answer is 32, indicating that the SIMMs data path is 32 bits wide. This means that it can transfer 32 bits of data at a time, allowing for faster data transfer and processing.

Question 5

Which of the following prevents too much toner from sticking to the cylinder surface?

Accepted Answer

Control blade

Answer

The control blade prevents too much toner from sticking to the cylinder surface. It is responsible for regulating the amount of toner that is transferred onto the cylinder during the printing process. By controlling the thickness of the toner layer, the control blade ensures that an appropriate amount of toner is transferred onto the paper, resulting in clear and accurate prints.

NOCTI - National Occupational Competency Testing Institute Practice Test

NOCTI - National Occupational Competency Testing Institute Practice Test

FREE NOCTI Computer Science Questions and Answers