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Computer Science - Class 12
Solutions to CBSE Sample Paper - Computer Science Class 12

b) Which network device will be used to connect computers in each block to form a local area network?


Answer by student

The network device that will be used to connect computers in each block to form a local area network is a switch .

Detailed answer by teachoo

A local area network (LAN) is a collection of devices connected together in one physical location, such as a building, office, or home. A LAN can be small or large, ranging from a home network with one user to an enterprise network with thousands of users and devices in an office or school.

A network device is a hardware component that performs specific functions in a network, such as routing, switching, firewalling, etc. There are different types of network devices, such as routers, switches, hubs, bridges, etc. Each device has its own features and capabilities in terms of performance, functionality, security, and cost.

For connecting computers in each block to form a LAN, a common device is the switch , which is a multiport device that forwards data frames based on their MAC addresses. The switch has the following benefits:

  • It provides dedicated bandwidth to each port
  • It reduces collisions and congestion in the network
  • It supports various features and protocols, such as VLANs, STP, QoS, etc.
  • It improves security and manageability of the network

A switch can be used to connect computers in each block using twisted-pair cables. The twisted-pair cables provide cost-effective and flexible data transmission over short distances (up to 100 m). The switch can also be connected to another switch or router using fiber-optic cables. The fiber-optic cables provide high-speed and reliable data transmission over long distances (up to 10 km).

So, the correct answer is switch .

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.