640-802 CCNA Study Guide - Elktech.org

Cisco 640-802 Exam
delivered properly. Feasible successors are also recorded in the topology table.
AD : Advertised Distance (AD) is the distance to a particular destination as reported by a router to
its neighbors. This distance is sometimes also called a Reported Distance and is equal to the
current lowest total distance through a successor.
FD. A Feasible Distance (FD) is the lowest known distance from a router to a particular destination
since the last time the route went from Active to Passive state. It can be expressed in other words
as a historically lowest known distance to a particular destination. While a route remains in
Passive state, the FD is updated only if the actual distance to the destination decreases, otherwise
it stays at its present value. On the other hand, if a router needs to enter Active state for that
destination, the FD will be updated with a new value after the router transitions back from Active to
Passive state. This is the only case when the FD can be increased. The transition from Active to
Passive state in effect marks the start of a new history for that route.
QUESTION NO: 269
The output of the show frame-relay pvc command shows"PVC STATUS=INACTIVE". What does
this mean?
A. The PVC is configured correctly and is operating normally, but no data packets have been
detected for more than five minutes.
B. The PVC is configured correctly, is operating normally, and is no longer actively seeking the
address the remote route.
C. The PVC is configured correctly, is operating normally, and is waiting for interesting to trigger a
call to the remote router.
D. The PVC is configured correctly on the local switch, but there is a problem on the remote end of
the PVC.
E. The PVC is not configured on the switch.
Answer: D
Explanation:
QUESTION NO: 270
Refer to the exhibit. Which command will create a default route on Router B to reach all networks
beyond routerA?
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