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

What is the primary function of a network switch?

  1. Connecting devices to the internet

  2. Routing data packets between networks

  3. Providing wireless connectivity

  4. Storing and managing data
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A network switch is a networking device that connects multiple devices to a network. It operates at Layer 2 of the OSI model and forwards data packets based on the MAC addresses of the devices.

Multiple choice

What is the term for the basic unit of data that is transmitted over a network?

  1. Packet

  2. Frame

  3. Segment

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

A packet is the basic unit of data that is transmitted over a network. It consists of a header that contains information about the source and destination addresses, as well as the data itself.

Multiple choice

What is the primary function of a network router?

  1. Connecting devices to the internet

  2. Routing data packets between networks

  3. Providing wireless connectivity

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

A network router is a networking device that connects multiple networks and routes data packets between them. It operates at Layer 3 of the OSI model and uses routing protocols to determine the best path for data packets to take.

Multiple choice

What is the term for the process of dividing a large data transmission into smaller, more manageable packets?

  1. Fragmentation

  2. Segmentation

  3. Encapsulation

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

Segmentation is the process of dividing a large data transmission into smaller, more manageable packets. This is done to improve the efficiency of data transmission and to reduce the risk of data loss.

Multiple choice

What is the term for the process of combining multiple data packets into a single, larger transmission?

  1. Fragmentation

  2. Segmentation

  3. Encapsulation

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

Encapsulation is the process of combining multiple data packets into a single, larger transmission. This is done to improve the efficiency of data transmission and to reduce the risk of data loss.

Multiple choice

What is the term for the process of breaking a large data transmission into smaller, more manageable packets?

  1. Fragmentation

  2. Segmentation

  3. Encapsulation

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

Fragmentation is the process of breaking a large data transmission into smaller, more manageable packets. This is done to improve the efficiency of data transmission and to reduce the risk of data loss.

Multiple choice

Which network device is responsible for connecting multiple networks?

  1. Modem

  2. Router

  3. Switch

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

A router is a network device that connects multiple networks and routes data packets between them. It operates at Layer 3 of the OSI model and uses routing protocols to determine the best path for data packets to take.

Multiple choice

Which of the following is NOT a common network maintenance task?

  1. Updating firmware and software

  2. Monitoring network traffic and performance

  3. Replacing faulty network components

  4. Installing new network equipment
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Installing new network equipment is typically not considered a maintenance task, as it involves adding new components to the network rather than maintaining existing ones.

Multiple choice

What is the recommended frequency for performing network maintenance tasks?

  1. Daily

  2. Weekly

  3. Monthly

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

The frequency of network maintenance tasks can vary depending on the size and complexity of the network, as well as the specific maintenance requirements of the network components. It is generally recommended to perform maintenance tasks as needed, based on monitoring results and identified issues.

Multiple choice

Which of the following is NOT a common network maintenance best practice?

  1. Documenting network changes

  2. Backing up network configurations

  3. Using outdated software and firmware

  4. Performing regular security audits
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Using outdated software and firmware is not a recommended network maintenance practice, as it can introduce security vulnerabilities and compatibility issues. Keeping software and firmware up to date is essential for maintaining network security and performance.

Multiple choice

Which of the following is a common network optimization technique?

  1. Load balancing

  2. Traffic shaping

  3. QoS (Quality of Service)

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

Load balancing, traffic shaping, and QoS are all common network optimization techniques used to improve network performance and efficiency by distributing traffic load, prioritizing network traffic, and ensuring that critical applications receive the necessary bandwidth and resources.

Multiple choice

Which of the following is NOT a common type of network documentation?

  1. Network diagrams

  2. Configuration files

  3. User manuals

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

Financial statements are not typically considered a type of network documentation, as they are not related to the technical aspects of network maintenance and management.

Multiple choice

Which of the following is not a component of NETRA?

  1. A network of ground-based sensors

  2. A space-based sensor platform

  3. A data processing and analysis center

  4. A command and control center
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

NETRA does not have a space-based sensor platform. Instead, it relies on a network of ground-based sensors to track and monitor objects in space.

Multiple choice

Which of the following is a network implementation methodology?

  1. Top-down approach

  2. Bottom-up approach

  3. Hybrid approach

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

All of the above are network implementation methodologies.

Multiple choice

Which of the following is a network implementation tool?

  1. Network management software

  2. Network monitoring software

  3. Network simulation software

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

All of the above are network implementation tools.