640-802 CCNA Study Guide - Elktech.org

Cisco 640-802 Exam
No users are able to access 172.16.20.0. After reviewing the command output shown in the
graphic, what is the most likely cause of the problem?
A. no gateway of last resort on Central
B. Central router's not receiving 172.16.20.0 update
C. incorrect static route for 172.16.20.0
D. 172.16.20.0 not located in Central's routing table
Answer: C
Explanation:
QUESTION NO: 425
Refer to Exhibit:
Based on the network shown in the graphic which option contains both the potential networking
problem and the protocol or setting that should be used to prevent the problem?
A. routing loops, hold down timers
B. switching loops, split horizon
C. routing loops, split horizon
D. switching loops, VTP
E. routing loops, STP
F. switching loops, STP
Answer: F
Explanation: The Spanning-Tree Protocol (STP) prevents loops from being formed when
switches or bridges are interconnected via multiple paths. Spanning-Tree Protocol implements the
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