Free NJATC Apprenticeship Programs Questions and Answers

Question 1

Which is not one of the main types of Ethernet Cabling?

Accepted Answer

FTP

Answer

FTP (Foil Twisted Pair) is not one of the main types of Ethernet cabling. The main types of Ethernet cabling include UTP (Unshielded Twisted Pair), which is the most common type used for Ethernet connections, and RG-58 and RG-11, which are coaxial cables used for Ethernet connections in certain applications. FTP, on the other hand, is a type of cable that combines the characteristics of both coaxial and twisted pair cables, but it is not commonly used for Ethernet connections.

Question 2

What type of cable is used with ubs and switches?

Accepted Answer

UTP

Answer

UTP (Unshielded Twisted Pair) cable is used with USBs and switches. UTP cables are commonly used in Ethernet networks due to their cost-effectiveness and versatility. They consist of four pairs of twisted copper wires, which help to reduce electromagnetic interference. UTP cables are the most widely used type of cable for local area networks (LANs) and are compatible with most networking devices, including USBs and switches.

Question 3

RG-11 cable is considered the backbone of cable.

Accepted Answer

TRUE

Answer

RG-11 cable is considered the backbone of cable because it is a thick, high-performance coaxial cable that is designed to carry signals over long distances with minimal signal loss. It has a larger diameter and a lower attenuation rate compared to other cables, making it suitable for transmitting signals over longer distances. Due to its superior performance, RG-11 cable is commonly used in applications that require high bandwidth and long cable runs, such as in cable TV distribution systems, satellite installations, and high-speed internet connections.

Question 4

Reduction of noise and crosstalk is one advantage of twisted pair wires.

Accepted Answer

TRUE

Answer

Twisted pair wires have the ability to reduce noise and crosstalk, which are unwanted disturbances or interference that can affect the quality of the transmitted signal. This is achieved by twisting the pairs of wires together, which helps to cancel out the electromagnetic interference from external sources. As a result, twisted pair wires are commonly used in telecommunications and networking applications where maintaining signal integrity is crucial. Therefore, the statement that reduction of noise and crosstalk is one advantage of twisted pair wires is true.

Question 5

Fiber optic cable can be constructed only using plastic.

Accepted Answer

FALSE

Answer

It can also be constructed using glass.

NJATC - National Joint Apprenticeship and Training Committee Practice Test

NJATC - National Joint Apprenticeship and Training Committee Practice Test

Free NJATC Apprenticeship Programs Questions and Answers