質問 1：
Click the Exhibit.
You have three switches, each with a trunk connection allowing all VLANs to the switches. CIST will coverage, however MSTP will not.
Referring to the exhibit, which statement is correct?
A. Switch3's configuration digest is different than for switch1 and for switch2.
B. Switch2 is the MSTI root bridge.
C. Switch3's contest identifier must be changed.
D. Switch1 is the CIST root bridge.
正解：A
質問 2：
Which two statements are true about PIM source-specific multicast (SSM)? (Choose two.)
A. S, G is always used.
B. A Different group address must be used by each source.
C. IGMPv3 is required.
D. The receiver DR builds a source-base tree to the RP.
正解：A,C
質問 3：
Click the Exhibit.
Switch 4 is rebooted as shown in the exhibit.
Which statement is correct in this scenario?
A. MSTI-1 is reconverged.
B. MSTI-2 is reconverged.
C. CIST is reconverged.
D. CIST generates notification events.
正解：A
質問 4：
Your network provider supports multicast traffic but your provider network does not. You want to allow multicast hosts outside of your network to receive multicast traffic sourced within your network.
How would you satisfy this requirement?
A. Use MSDP peering with your provider.
B. Use AutoVPN to connect to the remote hosts.
C. Use an automatic multicast tunnel gateway at the edge of your network.
D. Use an MP-BGP session to your provider to pass multicast traffic.
正解：C
質問 5：
Which three statements are true about strict-high priority queues? (Choose three.)
A. In systems that support multiple strict-high priority queues, traffic in the strict-high queue is processed in a round-robin fashion.
B. In systems that support strict-high and high priority queues, traffic in the strict-high queue is completely emptied, and then high priority queue traffic is processed.
C. When a strict-high queue can never go into negative credits and will always transmit the traffic in the queue.
D. When a strict-high queue goes into negative credits, it will maintain a strict DSCP marking.
E. In systems that support strict-high and high priority queues, traffic in these two priorities is processed in a round-robin fashion.
正解：A,B,C
Click the Exhibit.
You have three switches, each with a trunk connection allowing all VLANs to the switches. CIST will coverage, however MSTP will not.
Referring to the exhibit, which statement is correct?
A. Switch3's configuration digest is different than for switch1 and for switch2.
B. Switch2 is the MSTI root bridge.
C. Switch3's contest identifier must be changed.
D. Switch1 is the CIST root bridge.
正解：A
質問 2：
Which two statements are true about PIM source-specific multicast (SSM)? (Choose two.)
A. S, G is always used.
B. A Different group address must be used by each source.
C. IGMPv3 is required.
D. The receiver DR builds a source-base tree to the RP.
正解：A,C
質問 3：
Click the Exhibit.
Switch 4 is rebooted as shown in the exhibit.
Which statement is correct in this scenario?
A. MSTI-1 is reconverged.
B. MSTI-2 is reconverged.
C. CIST is reconverged.
D. CIST generates notification events.
正解：A
質問 4：
Your network provider supports multicast traffic but your provider network does not. You want to allow multicast hosts outside of your network to receive multicast traffic sourced within your network.
How would you satisfy this requirement?
A. Use MSDP peering with your provider.
B. Use AutoVPN to connect to the remote hosts.
C. Use an automatic multicast tunnel gateway at the edge of your network.
D. Use an MP-BGP session to your provider to pass multicast traffic.
正解：C
質問 5：
Which three statements are true about strict-high priority queues? (Choose three.)
A. In systems that support multiple strict-high priority queues, traffic in the strict-high queue is processed in a round-robin fashion.
B. In systems that support strict-high and high priority queues, traffic in the strict-high queue is completely emptied, and then high priority queue traffic is processed.
C. When a strict-high queue can never go into negative credits and will always transmit the traffic in the queue.
D. When a strict-high queue goes into negative credits, it will maintain a strict DSCP marking.
E. In systems that support strict-high and high priority queues, traffic in these two priorities is processed in a round-robin fashion.
正解：A,B,C
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