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Which of the following is NOT true with respect to a transparent bridge and a router?

  1. Both bridge and router selectively forward data packets

  2. A bridge uses IP addresses while a router uses MAC addresses

  3. A bridge builds up its routing table by inspecting incoming packets

  4. A router can connect between a LAN and a WAN

asked in Computer Networks by Veteran (59.4k points) | 1.2k views

2 Answers

+25 votes
Best answer
  1. Both bridge and router selectively forward data packets $\Rightarrow$ True.
    Bridge can drop packets not meant for other side, so can router.

  2. A bridge uses IP addresses while a router uses $\text{MAC}$ addresses $\Rightarrow$ False .
    A bridge operate at layer $2$ (data link layer) so it uses $\text{MAC}$ address,
    while router at layer $3$ (network layer) so it using IP addresse

  3. A bridge builds up its routing table by inspecting incoming packets $\Rightarrow$ True.
    Self Learning Bridges

  4. A router can connect between a $\text{LAN}$ and a $\text{WAN} \Rightarrow$ True.
    Router connecting home $\text{LAN}$ To internet !

answered by Boss (42.4k points)
edited by
+1 vote
ans b)
answered by Active (5.2k points)
0

A bridge operate at layer 2 (data link layer) so it uses MAC address, while router at layer 3 (network layer) so it using IP addresses smiley

0
for option (c), it has be mac table instead of routing table.??confused?
Answer:

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