Types of networks: LAN MCQs Quiz | Class 9
This quiz is for Class 9 students studying Computer Applications (Code 165), based on Unit 1: Basics of Information Technology. It specifically covers the topic of Local Area Network (LAN), including common examples like home and school networks. Attempt all 10 questions and click ‘Submit Quiz’ to see your score and download a PDF of your answers.
Understanding Local Area Networks (LAN)
A Local Area Network (LAN) is a collection of computers and other devices connected together within a limited geographical area. This area could be a home, a school, a single office building, or a group of nearby buildings. The primary purpose of a LAN is to enable resource sharing, such as files, printers, applications, and a common internet connection, among its users.
Key Concepts of a LAN
- Limited Geographical Area: LANs are defined by their small scale. They do not extend over large distances like cities or countries.
- High-Speed Data Transfer: Because the devices are close to each other, data can be transferred at very high speeds, typically from 100 Mbps to several Gbps.
- Private Ownership: A LAN is usually privately owned and managed by the organization or individual it serves, giving them full control over its configuration and security.
- Resource Sharing: This is the main advantage. Instead of each computer having its own printer, all computers on the LAN can share a single one. Similarly, files can be stored in a central location and accessed by everyone on the network.
Components of a Home or School Network
A typical LAN, like the one in your home or school, is built using several key hardware components:
- Router: Often called the ‘gateway’ of the network. A router connects the entire LAN to the internet (which is a WAN – Wide Area Network). It directs traffic between your local devices and the wider internet.
- Switch: A switch is a device that connects multiple devices on the network (e.g., computers, printers, servers). It intelligently forwards data packets only to the intended recipient device, making the network efficient.
- Network Interface Card (NIC): This is a piece of hardware inside each computer or device that allows it to connect to the network. It can be for a wired connection (Ethernet port) or wireless (Wi-Fi adapter).
- Cables / Wireless Access Point: Devices are connected either through physical Ethernet cables or wirelessly through a Wi-Fi Access Point (which is often built into the router in home setups).
Network Comparison
It’s helpful to see how LANs compare to other types of networks:
| Feature | LAN (Local Area Network) | MAN (Metropolitan Area Network) | WAN (Wide Area Network) |
|---|---|---|---|
| Area Covered | Small (Building, Campus) | Medium (City) | Large (Country, Globe) |
| Speed | Very High | Moderate | Low to High |
| Example | Home network, School network | Cable TV network in a city | The Internet |
Quick Revision Points
- LAN stands for Local Area Network.
- It operates within a small, specific area like a home, school, or office.
- The main benefit is sharing resources like printers, files, and internet access.
- Key hardware includes routers, switches, and NICs.
- Data transfer speeds on a LAN are generally much faster than on a WAN.
- A router connects a LAN to a WAN (like the internet).
Extra Practice Questions
- What is the full form of NIC?
- The device that connects a LAN to the internet is called a ________.
- True or False: The internet is an example of a LAN.
- List two resources that can be shared on a school’s computer network.
- Which network type would be used to connect the different branches of a bank across a country?
