Quiz on Network Connectivity and Media

What is the primary function of RG-6 coaxial cable?

• To connect USB devices

• For short-distance data transmission

• Long-distance radio and TV signals

• Used in fiber optics

Answer explanation

The primary function of RG-6 coaxial cable is to transmit long-distance radio and TV signals. It is designed to handle high-frequency signals, making it ideal for cable television and satellite connections.

What is the purpose of twisting pairs in UTP cables?

• To make the cable easier to install

• To prevent crosstalk

• To reduce cable costs

• To allow for higher voltage

Answer explanation

The purpose of twisting pairs in UTP cables is to prevent crosstalk, which is interference caused by signals in adjacent wires. This design helps maintain signal integrity and improves overall performance.

What is the main difference between T568A and T568B standards?

• The color-coding of the wires

• The material of the cable

• The speed of the cable

• The type of shielding used

Answer explanation

The main difference between T568A and T568B standards is the color-coding of the wires. Both standards define different arrangements for the same wires, affecting how they are connected in networking applications.

What type of cable is used to connect similar devices directly without using a switch or hub?

• Straight-through cable

• Crossover cable

• Plenum cable

• Coaxial cable

Answer explanation

A crossover cable is used to connect similar devices directly, such as two computers or two switches, without needing a switch or hub. It allows for the direct transmission of data between the devices.

Which of the following is an advantage of Cat6 over Cat5e cable?

Answer explanation

Cat6 cables offer higher bandwidth and faster data transmission rates compared to Cat5e, making them more suitable for modern networking needs. However, they typically come at a higher cost, not a lower one.

Which type of fiber optic cable is best suited for long-distance data transmission?

• Single-mode fiber

• Multi-mode fiber

• Coaxial cable

• Twisted pair cable

Answer explanation

Single-mode fiber is best for long-distance data transmission because it allows light to travel straight down the fiber with minimal loss, making it ideal for high-speed and long-range applications.

What does CSMA/CD do in a network?

• Prevents network collisions before they occur

• Detects and handles collisions after they occur

• Encrypts wireless communication

• Allocates IP addresses to devices

Answer explanation

CSMA/CD (Carrier Sense Multiple Access with Collision Detection) is a network protocol that detects and handles collisions after they occur, allowing devices to retransmit data, ensuring efficient communication.

What is a major benefit of MU-MIMO technology?

• Increased power consumption

• Reduced latency for multiple users

• Limited bandwidth

• Requires single antenna usage

Answer explanation

MU-MIMO technology allows multiple users to communicate simultaneously, which significantly reduces latency for each user. This enhances overall network efficiency and user experience, making it a key benefit.

Which Wi-Fi standard first introduced MU-MIMO?

• 802.11a

• 802.11n

• 802.11ac

• 802.11ax

Answer explanation

The Wi-Fi standard 802.11ac first introduced MU-MIMO (Multi-User Multiple Input Multiple Output), allowing multiple devices to communicate simultaneously, enhancing network efficiency and performance.

Which encryption protocol should be avoided due to security vulnerabilities?

• WPA2

• WPA3

• WEP

• AES

Answer explanation

WEP (Wired Equivalent Privacy) should be avoided due to significant security vulnerabilities, making it easy for attackers to compromise networks. In contrast, WPA2 and WPA3 offer stronger security measures.