Cisco 642-883 Exam Actual Questions

Topic 1 - Single Topic

Question #1 Topic 1

Refer to the OSPF command exhibit.

Which effect does the no-summary command option have?

A. It will cause area 1 to be able to receive non-summarized inter-area routes.
B. It will cause area 1 to not receive any inter-area routes and will use a default route to reach networks in other areas.
C. It will cause area 1 to not receiveany external routes and will use a default route to reach the external networks.
D. It will convert the NSSA area into a NSSA totally stubby area.
E. It will convert the stubby area into a NSSA.
F. It will disable OSPF auto-summary.

Reveal Solution Discussion

Correct Answer: B 🗳️

Question #2 Topic 1

When troubleshooting OSPF neighbor errors, which three verification steps should be considered? (Choose three.)

A. Verify if neighboring OSPF interfaces are configured in the same area.
B. Verify if neighboring OSPF interfaces are configured with the same OSPF process ID.
C. Verify if neighboring OSPF interfaces are configured with the same OSPF priority.
D. Verify if neighboring OSPF interfaces are configured with the same hello and dead intervals.
E. Verify if neighboring OSPF interfaces are configured with the same area type.

Reveal Solution Discussion

Correct Answer: ADE 🗳️

Question #3 Topic 1

On Cisco IOS XR Software, which set of commands is used to enable the gi0/0/0/1 interface for OSPF in area 0?

A. interface gi0/0/0/0ip address 10.1.1.1255.255.255.0!router ospf 1network 10.1.1.1 0.0.0.0 area 0
B. interface gi0/0/0/0ip address 10.1.1.1 255.255.255.0!router ospf 1network 10.1.1.1 255.255.255.255 area 0
C. router ospf 1area 0interface GigabitEthernet0/0/0/1
D. interface gi0/0/0/0ip address10.1.1.1 255.255.255.0ip ospf 1 area 0
E. router ospf 1address-family ipv4 unicastinterface GigabitEthernet0/0/0/1 area 0
F. router ospf 1address-family ipv4 unicastinterface GigabitEthernet0/0/0/1area 0

Reveal Solution Discussion

Correct Answer: C 🗳️

Question #4 Topic 1

Which three statements are true regarding the OSPF router ID? (Choose three.)

A. The OSPF routing process chooses a router ID for itself when it starts up.
B. The router-id command is the preferred procedure to set the router ID.
C. If a loopback interface is configured, its address will always be preferred as the router ID over any other methods.
D. After the router ID is set, it does not change, even if the interface that the router is using for the router ID goes down. The router ID changes only if the routerreloads or if the OSPF routing process restarts.
E. In OSPF version 3, the OSPF router ID uses a 128-bit number.

Reveal Solution Discussion

Correct Answer: ABD 🗳️