先試後買

A. Multi-area IS-IS domain with broadcast interfaces.

B. Single-area IS-IS domain with broadcast interfaces.

C. Multi-area IS-IS domain with no broadcast interfaces.

D. Single-area IS-IS domain with no broadcast interfaces.

A. The routers do not agree on the result of the DIS election.

B. The routers discard the received Hello messages because they are not the expected type: LAN Hello vs point-to-point Hello.

C. The routers do not receive each other's Hello messages because they listen for messages transmitted to different multicast IP addresses.

D. The routers do not receive each other's Hello messages because they listen for messages transmitted to different multicast MAC addresses.

A. It uses the ARP table to find a match for the source MAC address.

B. It uses the ARP table to find a match for the destination MAC address.

C. It uses the routing table to find a match for the source IP address.

D. It uses the routing table to find a match for the destination IP address.

A. The head office has a specific static route and the branch office has a default route.

B. The head office has a default route and the branch office has a specific static route.

C. The head office and the branch office both have default routes.

D. The head office and the branch offices both have specific static routes.

A. A reference bandwidth needs to be configured to calculate link costs.

B. The IS-IS context needs to be enabled.

C. The router needs to be associated with an IS-IS area ID.

D. Layer-3 interfaces that will participate in IS-IS need to be identified.