Multiple choice general knowledge science & technology

Data on LAN is generally broadcasted. Why your computer doesn't accepts data which is coming for another computer?

  1. NIC card is default set to promiscuous mode

  2. NIC card is default set to non promiscuous mode

  3. OS takes care of this security issue.

  4. Hub logic takes care of it.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In non-promiscuous mode, the NIC card only accepts frames where the destination MAC address matches its own hardware address or is a broadcast/multicast address. This hardware-level filtering happens before the data even reaches the operating system, ensuring each computer only processes the data specifically meant for it. Promiscuous mode would accept all frames regardless of destination.

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