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A monitoring plane usually comprises the monitoring units of main control boards and interface boards. This plane can monitor the system environment independently. Which of the following environment monitoring functions can be provided by the monitoring plane?
The monitoring plane's primary role is environmental monitoring, ensuring the stability of the system. Functions like voltage monitoring, temperature tracking, fan speed control, and power management are standard. These are independent of the forwarding or control planes and critical for maintaining device health in network operations .
Which three transmission modes are supported for IPv4 packets?
IPv4 supports three main transmission modes:
Unicast: One-to-one communication.
Broadcast: One-to-all communication within a network.
Multicast: One-to-many communication to a group of interested receivers.
Anycast is not a native IPv4 mode but is introduced in IPv6 .
Which of the following statements regarding OSPF multi-instance is false?
OSPF process IDs are locally significant and do not need to match between routers to form neighbor relationships. The other statements correctly describe the behavior of OSPF multi-instances, making Option C false .
A route-policy can have multiple nodes, and each node can have multiple if-match and apply clauses. Which of the following statements are false?
The operator between if-match clauses under a node is AND, meaning all conditions must be satisfied. However, the operator between nodes is OR, meaning a route matching any node will pass the route-policy .
After which of the following parameters are modified does an IS-IS neighbor relationship need to re-established?
When the level of an IS-IS interface is changed, the adjacency must be re-established because IS-IS adjacencies are formed based on matching levels (Level-1, Level-2, or both). Other changes, such as cost or hello intervals, do not disrupt the existing adjacency but might impact routing metrics or timing .
