What action will occur if a switch receives a frame and does have the source MAC address in the MAC table? Group of answer choicesThe switch refreshes the timer on that entry.The switch sends the frame to a connected router because the destination MAC address is not local.The switch does not forward the frame.The switch shares the MAC address table entry with any connected switches
Question
What action will occur if a switch receives a frame and does have the source MAC address in the MAC table? Group of answer choicesThe switch refreshes the timer on that entry.The switch sends the frame to a connected router because the destination MAC address is not local.The switch does not forward the frame.The switch shares the MAC address table entry with any connected switches
Solution
When a switch receives a frame and it does have the source MAC address in the MAC table, the switch refreshes the timer on that entry. This is because the MAC address table, also known as the Forwarding Information Base (FIB), is used by switches to identify the appropriate physical output port to which the input data frame is sent. The switch does not forward the frame to a connected router because the destination MAC address is local. It also does not share the MAC address table entry with any connected switches. The MAC address table is unique to each switch.
Similar Questions
What action will occur if a host receives a frame with a destination MAC address it does not recognize? Group of answer choicesThe host will discard the frame.The host sends the frame to the switch to update the MAC address table.The host forwards the frame to the router.The host forwards the frame to all other hosts.
Refer to the exhibit. The exhibit shows a small switched network and the contents of the MAC address table of the switch. PC1 has sent a frame addressed to PC3. What will the switch do with the frame?Group of answer choicesThe switch will discard the frame.The switch will forward the frame to all ports.The switch will forward the frame only to port 2.The switch will forward the frame only to ports 1 and 3.The switch will forward the frame to all ports except port 4.
The switch recordd the source MAC address and corresponding interface in the received data frame in the MAC address table. A. True B. False
What are two actions performed by a Cisco switch? (Choose two.)Please select 2 correct answersGroup of answer choicesutilizing the MAC address table to forward frames via the destination MAC addressexamining the destination MAC address to add new entries to the MAC address tableusing the source MAC addresses of frames to build and maintain a MAC address tablebuilding a routing table that is based on the first IP address in the frame headerforwarding frames with unknown destination IP addresses to the default gateway
When does a switch flood the network with a frame?When there is no MAC address associated with a switch port in the forward/filter tableWhen the frame uses the UDP protocolWhen it does not know the destination IP addressFor every frame
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