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Which of the following statements is TRUE about network devices?

  1. Ethernet switches will always send received frames out to all interfaces (except the one on which the packet was received).
  2. Both IP routers and Ethernet hubs drop packets when there is congestion.
  3. Ethernet switches learn the location of hosts on their network by observing the frames they process.
  4. If an IP router doesn’t know the location of a destination IP address in a packet it receives, it will flood the packet out to all interfaces (except the one on which the packet was received).
asked in Computer Networks by Boss (17.2k points) | 93 views

1 Answer

+2 votes

Option C

IP routers drop packets when there is congestion but a hub doesn't know about collision.

Ethernet switches learn the location of hosts on their network by observing the frames they process. The switch learns which devices, called stations in the standard, are on which segments of the network by looking at the source addresses in all of the frames it receives. As each frame is received on each port, the switching software looks at the source address of the frame and adds that source address to a table of addresses that the switch maintains. This is how the switch automatically discovers which stations are reachable on which ports.

https://www.oreilly.com/library/view/ethernet-switches/9781449367299/ch01.html

If an IP router doesn’t know the location of a destination IP address in a packet it receives, it will send it to default address in routing table.

answered by Boss (11k points)
edited by
+1

option C is the correct answer. Switches learn the location of hosts on their network by observing packets.

 

refer :

Answer:

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