Refer to the exhibit.

A network administrator is trying to access a branch router using TACACS+ username and password credentials, but the administrator cannot log in to the router because the WAN connectivity is down. The branch router has following AAA configuration:

Which command will resolve this problem when WAN connectivity is down?

When configuring Control Plane Policing on a router to protect it from malicious traffic, an engineer observes that the configured routing protocols start flapping on that device. Which action in the Control Plane Policy prevents this problem in a production environment while achieving the security objective?

Refer to the exhibit.

During ISP router maintenance, the network produced many alerts because of the flapping interface. Which configuration on R1 resolves the issue?

Which configuration adds an IPv4 interface to an OSPFv3 process in OSPFv3 address family configuration?

Refer to the exhibit.


All the serial between R1, R2, and R3 have the Same bandwidth. User on the 192.168.1.0/24 network report slow response times while they access resource on network 192.168.3.0/24. When a traceroute is run on the path. It shows that the packet is getting forwarded via R2 to R3 although the link between R1 and R3 is still up. What must the network administrator to fix the slowness?