This configuration is part of RTA configuration: [RTA] ospf 100 [RTA-ospf-100] silent-interface GigabitEthernet 1/0/0 Which of the following statements regarding the configuration are true? A. RTA…

Question

Options

• ARTA cannot establish a neighbor relationship with the neighbor that this interface is directly connected to.
• BGigabitEthernet 1/0/0 is prohibited from sending OSPF packets.
• COSPF routes of GigabitEthernet 1/0/0 will still be advertised.
• DThis interface cannot send Hello packets.

• A
  77% (23)
• B
  7% (2)
• C
  3% (1)
• D
  13% (4)

Explanation

silent-interface suppresses OSPF Hello packets on the specified interface, which is the fundamental mechanism OSPF uses to discover and maintain neighbor relationships. Without Hello exchange, no OSPF adjacency can form with any device directly connected to GigabitEthernet 1/0/0 - making A correct.

B is wrong because silent-interface targets Hello packets specifically, not all OSPF packets. The router still generates LSAs advertising the GigabitEthernet 1/0/0 network and floods them out its other interfaces - OSPF routing still functions for that subnet.

C is wrong because while the network exists in the router's topology, no OSPF neighbor can form on that interface to exchange routing information, so practically speaking, that interface's routes are not being advertised to any directly connected peer.

D is wrong because it only describes half the mechanism - silent-interface blocks both sending and receiving Hello packets, not just sending. More importantly, D describes the means while A describes the outcome, and A is the more complete and operationally meaningful statement.

Memory tip: Think of silent-interface as putting an interface into "airplane mode" for OSPF - it goes completely dark (no Hellos in or out), so it can't make any OSPF neighbors on that link, but the router still knows the network exists and can tell other neighbors about it via different interfaces.

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