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Exam
: CISCO 640-821
Title
:
INTRO
Version : Demo
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1. Refer to the exhibit. Why was this message received?
A. No VTY password has been set.
B. No enable password has been set.
C. No console password has been set.
D. No enable secret password has been set.
E. The login command has not been set on CON 0.
F. The login command has not been set on the VTY ports.
Answer: A
2. A network administrator needs to create 29 subnetworks while maximizing the number of host addresses
available on each subnet. How many bits must be borrowed from the host field of the network address to
provide the required number of subnets with the most hosts per subnet?
A. 2
B. 3
C. 4
D. 5
E. 6
F. 7
Answer: D
3. Refer to the exhibit. If host A sends an IP packet to host B, what will the OSI Layer 3 source address be in
the packet when it reaches host B?
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A. 10.168.10.99
B. 10.168.11.88
C. 10.168.11.65
D. A1:A1:A1:A1:A1:A1
E. B2:B2:B2:B2:B2:B2
F. C3:C3:C3:C3:C3:C3
Answer: A
4. What is the difference between the Cisco router IOS commands show cdp neighbor detail and show cdp
entry?
A. The show cdp neighbor detail command shows all neighbor information, while show cdp entry displays
only one line of output for each neighbor.
B. The show cdp entry command shows neighbor information for specific neighbors only, while show cdp
neighbor detail lists each neighbor with detailed output on each.
C. The show cdp entry command shows neighbor information for all neighbors with one line of output for
each, while show cdp neighbor detail lists each neighbor with detailed output on each.
D. The show cdp neighbor detail command shows neighbor information for a single neighbor only, while
show cdp entry displays detailed output on each neighbor known.
Answer: B
5. Refe