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CBSE Class 12 Informatics Practices Question 11 of 118

Introduction to Computer Networks — Question 11

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Question 11

Assertion. Hubs and switches can be replaced.

Reason. While a hub is a broadcast device, a switch is a unicast device.

  1. Both A and R are true and R is the correct explanation of A.
  2. Both A and R are true but R is not the correct explanation of A.
  3. A is true but R is false.
  4. A is false but R is true.
Answer

Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

Explanation
Both hubs and switches are used to connect multiple devices in a network. Hence they are replaceable with each other. Switches offer more efficient data transmission compared to hubs because they can direct data specifically to the intended device connected to it, unlike a hub that just sends data to all connected devices. This makes a switch more efficient for managing network traffic. Therefore, a hub is a broadcast device, a switch is a unicast device.