640-802 CCNA Study Guide - Elktech.org

Answer: C
Explanation:
Cisco 640-802 Exam
QUESTION NO: 418
Which statement describes the rule of split horizon?
A. Only routers can split boundaries (horizons) between concentric networks.
B. All distance vector protocols require fall back routes that may cause momentary loops as the
topology changes.
C. Networks can only remain fully converged if all information about routes is sent out all active
interfaces.
D. Information about a route should not be sent back in the direction from which the original
update came.
E. Each AS must keep routing tables converged to prevent dead routes from being advertised
across the AS boundary.
Answer: D
Explanation:
QUESTION NO: 419
While troubleshooting a network problem, a technician discovers that the current copy of the Cisco
IOS is outdated and needs to be updated. Which of the following commands would the technician
issue to replace the Cisco router IOS with the newer version?
A. Router# copy tftp flash
B. Router(config)# restore flash
C. Router(config)# repair flash
D. Router# copy flash run
E. Router> copy start flash
F. Router# copy start flash
Answer: A
Explanation:
QUESTION NO: 420
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