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The figure shows the networking of Smart Link and Monitor Link cascade. The Smart Link group on switch SWH is used as the uplink port of the Monitor Link group on switch SWH, and the peer port of the downlink port of the Monitor Link group is the master port of the Smart Link group on switch SWJ. The uplink SWD and SWE ports of switch SWH are the ports of the Smart Link group. What can we learn from the above information?

The figure shows the networking of Smart Link and Monitor Link cascade. The Smart Link group on switch SWH is used as the uplink port of the Monitor Link group on switch SWH, and the peer port of the downlink port of the Monitor Link group is the master port of the Smart Link group on switch SWJ. The uplink SWD and SWE ports of switch SWH are the ports of the Smart Link group. What can we learn from the above information?

A . If the link of switch SWH to switch SWD is down, the master port of switch SWJ Smart Link group will switch to the slave port.
B . If the link of switch SWH to switch SWE is down, the primary port of the Smart Link group of switch SWJ will switch to the secondary port.
C . If the links of the upstream switches SWD and SWE of switch SWH are both in Down state, the primary port of the Smart Link group of switch SWJ will be switched to the secondary port.
D . The Smart Link group status of switch SWJ has nothing to do with switch SWH

Answer: C

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