A network administrator manages a switch with a default MAC aging timer of 300 seconds. The switch connects to a server that sends a burst of traffic every 10 minutes, but is otherwise idle. The administrator notices that frames sent to the server are frequently flooded, causing unnecessary load on the network. The administrator wants to reduce flooding without manually configuring static MAC entries. What should the administrator do?

Enable port security on the server port.

Decrease the MAC aging timer to 60 seconds.

Increase the MAC aging timer to 900 seconds.

Disable MAC learning on the server port.

What does a switch do with a frame whose destination MAC address is found in its MAC address table?

It drops the frame because the destination is already known.

It forwards the frame out the port associated with that MAC address.

It floods the frame out all ports except the receiving port.

It sends the frame back out the port it arrived on.

A switch receives a unicast frame with a destination MAC that is not in its MAC address table. The frame arrived on port Gi0/4. What will the switch do with this frame?

Forward the frame only to the default gateway.

Drop the frame because the destination is unknown.

Send the frame back out Gi0/4 because the source and destination are on the same port.

Flood the frame out all ports except Gi0/4.

A switch receives a frame on port Gi0/1 with source MAC 00:11:22:33:44:55 and destination MAC 66:77:88:99:AA:BB. The MAC address table has an entry for 66:77:88:99:AA:BB on port Gi0/10. What will the switch do with this frame?

Drop the frame because the source and destination are on different ports.

Update the MAC table for 66:77:88:99:AA:BB to port Gi0/1.

Flood the frame out all ports except Gi0/1.

Forward the frame only out port Gi0/10.

A switch receives a broadcast frame on port Gi0/2. The MAC address table contains entries for several devices on other ports. How will the switch process this broadcast frame?

Forward the frame only to ports that have entries in the MAC address table.

Forward the frame out all ports except Gi0/2.

Forward the frame only to the port that has the broadcast MAC address.

Drop the frame because broadcasts are not forwarded by switches.

CiscoCertified Network Associate (CCNA)

Domain 1Objective 13

1.13 Describe Switching Concepts 200-301 Practice Questions (Page 3)

Part of the Network Fundamentals domain, which accounts for 20% of the 200-301 exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~10–16 in this domain), expect 1–1 from this objective — we provide 32 practice questions to prepare you well beyond it. (estimate)

32questions here

7free pages

5concepts

20%of the exam

Questions 11–15

11expert · hard
A network administrator manages a switch with a default MAC aging timer of 300 seconds. The switch connects to a server that sends a burst of traffic every 10 minutes, but is otherwise idle. The administrator notices that frames sent to the server are frequently flooded, causing unnecessary load on the network. The administrator wants to reduce flooding without manually configuring static MAC entries. What should the administrator do?
Select an answer first
12foundation · easy
What does a switch do with a frame whose destination MAC address is found in its MAC address table?
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13application · medium
A switch receives a unicast frame with a destination MAC that is not in its MAC address table. The frame arrived on port Gi0/4. What will the switch do with this frame?
Select an answer first
14application · medium
A switch receives a frame on port Gi0/1 with source MAC 00:11:22:33:44:55 and destination MAC 66:77:88:99:AA:BB. The MAC address table has an entry for 66:77:88:99:AA:BB on port Gi0/10. What will the switch do with this frame?
Select an answer first
15application · medium
A switch receives a broadcast frame on port Gi0/2. The MAC address table contains entries for several devices on other ports. How will the switch process this broadcast frame?
Select an answer first

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