A.Add a community string to the existing entry.

B.Maintain the configuration but switch to an encrypted password for device access through SSH.

C.Re-configure to use SNMPv2 with MD5 authentication.

D.Re-configure to use SNMPv3.

A.Disable Cisco Express Forward.ng on all interfaces running routing protocols other than IS-IS

B.Configure BFD under the IS-IS process

C.Configure all ISIS routers as Level 2 devices

D.Configure BFD in an interface configuration mode

A.Router 1 accepts all traffic that ingresses and egresses interface gigabitethernet0/1

B.Router 1 drops all traffic that ingresses interface gigabitethernet0/1 that has a FIB entry that exits a different interface

C.Router 1 accepts source addresses on interface gigabitethemet0/1 that are private addresses

D.Router 1 accepts source addresses that have a match in the FIB that indicates it is reachable through a real interface

A.All traffic to 192.168.1.0/24 is dropped

B.All traffic is dropped

C.Router 1 and Router 2 advertise the route to 192.0.2.0/24 to all BGFD peers.

D.Router 1 drops all traffic with a local-preference set to 150

A.In the ospfv3 1 area 1 ipv4 command, area 0 must be configured instead of area 1.

B.OSPFv3 cannot be configured for IPv4; OSPFv3 works only for IPv6.

C.OSPFv3 does not run for IPv4 on FastEthemet0/0 until IPv6 routing is enabled on the router and IPv6 is enabled on interface Fastfc.thernet0/0

D.IPv6 routing not enabled" is just an informational message and OSPFv3 runs for IPv4 on interface FastEthernet0/0 anyway