Computer Knowledge

Computer Networks

2,095 Questions

Computer networks form the backbone of digital communication, connecting multiple devices to share data and resources. This area covers network architectures, transmission media, modems, and topologies like LAN. These concepts are crucial for computer knowledge sections in banking and government exams.

Network topologiesModulation and demodulationNetwork addressingFiber optic cablesWireless infrastructure

Computer Networks Questions

Multiple choice

Which of the following is a common cause of network problems?

  1. Hardware failures

  2. Software bugs

  3. Misconfigurations

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Hardware failures, software bugs, and misconfigurations are all common causes of network problems.

Multiple choice

Which of the following is a common network troubleshooting technique?

  1. Divide and conquer

  2. Process of elimination

  3. Trial and error

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Divide and conquer, process of elimination, and trial and error are all common network troubleshooting techniques.

Multiple choice

Which of the following is a common network performance metric?

  1. Throughput

  2. Latency

  3. Packet loss

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Throughput, latency, and packet loss are all common network performance metrics.

Multiple choice

Which of the following is a common cause of network congestion?

  1. Excessive traffic

  2. Insufficient bandwidth

  3. Misconfigured network devices

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Excessive traffic, insufficient bandwidth, and misconfigured network devices are all common causes of network congestion.

Multiple choice

What is the term for the process of connecting multiple computers or devices to form a network?

  1. Networking

  2. Routing

  3. Switching

  4. Broadcasting
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Networking refers to the process of connecting multiple computers or devices together to allow them to communicate and share resources, such as files, printers, and internet access.

Multiple choice

In the context of computer networking, what is the purpose of a router?

  1. Connecting devices to a network

  2. Transmitting data between networks

  3. Providing internet access

  4. Storing data
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A router is a networking device that connects different networks and forwards data packets between them. It determines the best path for data to travel and manages the flow of traffic across networks.

Multiple choice

Which type of network cable is commonly used for home networking?

  1. Coaxial cable

  2. Fiber optic cable

  3. Twisted pair cable

  4. HDMI cable
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Twisted pair cable, specifically Category 5e or Category 6, is commonly used for home networking due to its affordability, ease of installation, and sufficient bandwidth for most home applications.

Multiple choice

What is the purpose of a router in a home network?

  1. To connect to the internet

  2. To share files and printers

  3. To control network traffic

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A router serves multiple purposes in a home network. It connects to the internet, allows multiple devices to share files and printers, and controls network traffic to ensure efficient data transfer.

Multiple choice

Which wireless networking standard is commonly used in modern home networks?

  1. 802.11a

  2. 802.11b

  3. 802.11g

  4. 802.11n
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

802.11n, also known as Wi-Fi 4, is commonly used in modern home networks due to its improved speed and range compared to previous standards.

Multiple choice

Which network topology is commonly used in small home networks?

  1. Bus topology

  2. Star topology

  3. Ring topology

  4. Mesh topology
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Star topology is commonly used in small home networks because it provides a central connection point (usually a router) to which all devices are connected. This simplifies network management and troubleshooting.

Multiple choice

What is the purpose of a network switch in a home network?

  1. To connect multiple devices to the internet

  2. To share files and printers

  3. To extend the range of a wireless network

  4. To control network traffic
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A network switch allows multiple devices to connect to the internet and communicate with each other by providing multiple ports for wired connections.

Multiple choice

What is the role of a modem in a home network?

  1. To connect to the internet

  2. To share files and printers

  3. To extend the range of a wireless network

  4. To control network traffic
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A modem (modulator-demodulator) is responsible for converting digital signals from a computer into analog signals that can be transmitted over a telephone line or cable connection, allowing devices to connect to the internet.

Multiple choice

What is the purpose of a network extender in a home network?

  1. To connect multiple devices to the internet

  2. To share files and printers

  3. To extend the range of a wireless network

  4. To control network traffic
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A network extender (also known as a Wi-Fi extender or repeater) is used to extend the range of a wireless network by amplifying and retransmitting the wireless signal, allowing devices to connect to the network even when they are far from the main router.

Multiple choice

Which type of network connection is typically used to connect a home network to the internet?

  1. Dial-up connection

  2. DSL connection

  3. Cable connection

  4. Fiber optic connection
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A cable connection, which uses a coaxial cable, is commonly used to connect a home network to the internet due to its high-speed data transfer capabilities.

Multiple choice

What is the role of a VPN (Virtual Private Network) in a home network?

  1. To connect to the internet

  2. To share files and printers

  3. To secure remote access to the network

  4. To control network traffic
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A VPN allows users to securely access a private network, such as a home network, over a public network, such as the internet, by creating an encrypted connection.