FAQs on Computer Network & Internet complete notes Part - 1

Question 1

1. What is a computer network?

Accepted Answer

Ans. A computer network is a collection of interconnected devices, such as computers, servers, switches, and routers, that are linked together to facilitate communication and data sharing between them.

Question 2

2. What is the Internet?

Accepted Answer

Ans. The Internet is a global network of interconnected computer networks that allows devices from all around the world to communicate with each other. It provides access to a vast amount of information, services, and resources through various protocols and technologies.

Question 3

3. What is the difference between a LAN and a WAN?

Accepted Answer

Ans. A LAN (Local Area Network) is a network that covers a small geographical area, such as an office building or a home, and is usually owned and managed by a single organization. On the other hand, a WAN (Wide Area Network) spans a large geographical area and connects multiple LANs together, often using public or private communication links.

Question 4

4. What is the role of switches and routers in a computer network?

Accepted Answer

Ans. Switches are devices that connect multiple devices within a LAN and facilitate the transfer of data between them. They operate at the data link layer of the network and use MAC addresses to forward data to the intended recipient. Routers, on the other hand, operate at the network layer and are responsible for forwarding data between different networks. They use IP addresses to determine the best path for data transmission.

Question 5

5. What are the advantages of using a computer network?

Accepted Answer

Ans. Some advantages of using a computer network include:- Resource sharing: Networks allow devices to share resources such as printers, storage devices, and internet connections, reducing costs and improving efficiency.- Communication: Networks enable seamless communication between individuals and groups through email, instant messaging, video conferencing, and other collaboration tools.- Centralized management: Networks allow for centralized management of resources, security settings, and software updates, making it easier to maintain and control the network infrastructure.- Data backup and recovery: Networks provide the ability to back up data centrally, minimizing the risk of data loss and facilitating quick recovery in case of hardware failure or disasters.- Scalability: Networks can be easily scaled up or down to accommodate the changing needs of an organization, allowing for flexible growth and expansion.

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