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Consider the following two statements.

  • $S_1$: Destination $\text{MAC}$ address of an $\text{ARP}$ reply is a broadcast address.
  • $S_2$: Destination $\text{MAC}$ address of an $\text{ARP}$ request is a broadcast address.

Which one of the following choices is correct?

  1. Both $S_1$ and $S_2$ are true
  2. $S_1$ is true and $S_2$ is false
  3. $S_1$ is false and $S_2$ is true
  4. Both $S_1$ and $S_2$ are false
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4 Answers

Best answer
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In ARP, source broadcasts an ARP request to all devices in local subnet.

The destination which has the matching IP address then sends an ARP response which includes the MAC address of the source and hence is a unicast message.

Option (C) S1 is false and S2 is true

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Destination MAC address of an ARP request is broadcast address  (for find destination mac address )

But reply is not broadcast (destination send its mac address to sender only)

 

So C is correct answer first false second true.
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Source 1 (Ram) sends a message to Source 2  (Shyam)

now when the packet is in the router using ARP , will act like listen everyone  (broadcasting) if you are Shyam then raise your hand then Shyam will reply by raising hand  then the packet is received by Source 2
Answer:

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