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Exam 200-301 All Questions

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Exam 200-301 topic 1 question 332 discussion

Actual exam question from Cisco's 200-301
Question #: 332
Topic #: 1
[All 200-301 Questions]

What does a switch do when it receives a frame whose destination MAC address is missing from the MAC address table?

  • A. It changes the checksum of the frame to a value that indicates an invalid frame.
  • B. It updates the CAM table with the destination MAC address of the frame.
  • C. It appends the table with a static entry for the MAC and shuts down the port.
  • D. It floods the frame unchanged across all remaining ports in the incoming VLAN.
Show Suggested Answer Hide Answer
Suggested Answer: D 🗳️
by Bibi20 at Sept. 18, 2022, 4:38 p.m.

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MikD4016
Highly Voted 2 years, 1 month ago
If the address is in the table, the frame is forwarded out the port associated with the MAC address in the table. When the DESTINATION MAC address is not found in the MAC address table, the switch forwards the frame out of all ports (flooding) except for the ingress port of the frame
upvoted 8 times
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HMaw
Highly Voted 1 year, 11 months ago
My answer is none of them.
upvoted 6 times
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[Removed]
Most Recent 7 months, 3 weeks ago
Selected Answer: D
D is correct. when the Source MAC Adress is not found in the MAC Table, the Switch assigns the MAC Address automatically in the MAC Table and forwards the packet normally. when the Destination MAC address is not found in the MAC Table, the switch forwards the frame out of all ports (flooding) except for the ingress port of the frame.
upvoted 2 times
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picho707
9 months, 2 weeks ago
Selected Answer: D
" It floods the frame unchanged across all remaining ports in the incoming VLAN." is a fancy way to say that if "the destination MAC address is not found in the MAC address table, the switch forwards the frame out of all ports (flooding) except for the ingress port."
upvoted 1 times
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[Removed]
11 months ago
Selected Answer: D
When the destination MAC address is not in the MAC/CAM table, the switch doesn't know which interface it is associated with. Therefore, it floods it out of all frames but the one it received it on (the ingress port).
upvoted 1 times
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uselessscript
1 year, 1 month ago
Selected Answer: D
When the destination MAC is not in the table, the frame is forwarded out to all ports excluding the ingress port.
upvoted 1 times
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yavuzcangiz
2 years ago
In this case destination mac is missin so it will flood the frame broadcast to the vlan except incoming port
upvoted 1 times
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tattybizzy
2 years, 1 month ago
D is correct
upvoted 3 times
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Bibi20
2 years, 1 month ago
I think the correct answer is B https://www.ciscopress.com/articles/article.asp?p=2181835&seqNum=5#:~:text=If%20the%20address%20is%20in,ingress%20port%20of%20the%20frame.
upvoted 4 times
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Community vote distribution
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C (25%)
B (20%)
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