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 automotive technology allows vehicles to communicate with each other?

  1. Bluetooth

  2. Wi-Fi

  3. Cellular

  4. Vehicle-to-Vehicle Communication
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Vehicle-to-Vehicle Communication (V2V) allows vehicles to exchange information such as speed, location, and trajectory to improve safety and traffic flow.

Multiple choice

Which of the following is NOT a type of robot communication?

  1. Wired communication

  2. Wireless communication

  3. Optical communication

  4. Mechanical communication
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Mechanical communication is not a common type of robot communication.

Multiple choice

What are some examples of knowledge networks?

  1. The Internet.

  2. Universities.

  3. Research and development labs.

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

The Internet is a global knowledge network that allows people to share information and ideas with each other. Universities are knowledge networks that bring together students, faculty, and researchers to create and share knowledge. Research and development labs are knowledge networks that are dedicated to the creation of new knowledge.

Multiple choice

What is the name of the technology that allows us to send and receive messages over long distances using the internet?

  1. email

  2. text messaging

  3. social media

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

Email was invented in the 1970s and was the first technology to allow for the transmission of electronic messages over long distances.

Multiple choice

Which type of electrical cable is commonly used for flexible connections between devices?

  1. BX cable

  2. Romex cable

  3. UF cable

  4. SO cord
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

SO cord (Service and Oil-Resistant cord) is designed for flexible connections between devices and is resistant to oil and moisture.

Multiple choice

Which of the following is NOT a common type of redundancy used in spacecraft avionics systems?

  1. Active redundancy

  2. Passive redundancy

  3. Hybrid redundancy

  4. Virtual redundancy
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Virtual redundancy is not a common type of redundancy used in spacecraft avionics systems.

Multiple choice

Which network device connects multiple computers within a limited physical space, such as a home or small office?

  1. Router

  2. Switch

  3. Modem

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

A switch is a network device that connects multiple computers within a limited physical space, such as a home or small office. It allows devices to communicate with each other and share resources.

Multiple choice

What is the primary function of a router in a network?

  1. Connecting devices within a limited physical space

  2. Transmitting data between networks

  3. Providing internet access

  4. Sharing resources among devices
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A router's primary function is to transmit data between networks. It determines the best path for data to travel and forwards it accordingly, ensuring efficient data transfer between different networks.

Multiple choice

Which network device allows users to connect to the internet?

  1. Switch

  2. Hub

  3. Router

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

A modem is a network device that allows users to connect to the internet. It modulates and demodulates signals, converting digital data into analog signals for transmission over telephone lines or cable connections.

Multiple choice

Which network device is used to amplify and regenerate signals over long distances?

  1. Switch

  2. Hub

  3. Repeater

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

A repeater is a network device used to amplify and regenerate signals over long distances. It receives a signal, amplifies it, and retransmits it, extending the range and strength of the signal.

Multiple choice

What is the function of a network bridge?

  1. Connecting devices within a limited physical space

  2. Transmitting data between networks

  3. Providing internet access

  4. Connecting different network segments
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A network bridge is a device that connects different network segments, allowing devices on different segments to communicate with each other. It forwards data packets between segments, extending the reach of the network.

Multiple choice

What is the purpose of a proxy server in a network?

  1. Connecting devices within a limited physical space

  2. Transmitting data between networks

  3. Providing internet access

  4. Acting as an intermediary between clients and servers
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A proxy server acts as an intermediary between clients and servers. It receives requests from clients, forwards them to the appropriate servers, and returns the responses to the clients. It can also provide caching services, security features, and load balancing.

Multiple choice

Which network device is used to connect two or more networks with different protocols?

  1. Switch

  2. Hub

  3. Gateway

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

A gateway is a network device that connects two or more networks with different protocols. It acts as a translator between different protocols, allowing devices on different networks to communicate with each other.

Multiple choice

What is the primary function of a network interface card (NIC) in a computer?

  1. Connecting devices within a limited physical space

  2. Transmitting data between networks

  3. Providing internet access

  4. Connecting a computer to a network
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A network interface card (NIC) is a hardware component that connects a computer to a network. It allows the computer to communicate with other devices on the network, enabling data transfer and resource sharing.

Multiple choice

Which network device is used to connect multiple network segments into a single, larger network?

  1. Switch

  2. Hub

  3. Bridge

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

A router is a network device used to connect multiple network segments into a single, larger network. It determines the best path for data to travel between different networks and forwards data packets accordingly.