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Sample Questions

Question: 1
A network administrator executes the command clear ip route. Which two tables
does this command clear and rebuild? (Choose two.)
A.
B.
C.
D.
E.
F.

IP routing
FIB
ARP cache
MAC address table
Cisco Express Forwarding table
topology table

Answer: AB

Question: 2
Which switching method is used when entries are present in the output of the
command show ip cache?
A.
B.
C.
D.

fast switching
process switching
Cisco Express Forwarding switching
cut-through packet switching

Answer: A

Question: 3
Which two actions must you perform to enable and use window scaling on a
router? (Choose two.)
A.
B.
C.
D.

Execute the command ip tcp window-size 65536
Set window scaling to be used on the remote host.
Execute the command ip tcp queuemax
Set TCP options to "enabled" on the remote host.

Answer: AB

Question: 4
Which three TCP enhancements can be used with TCP selective
acknowledgments? (Choose three.)
A.
B.
C.
D.
E.
F.

header compression
explicit congestion notification
keepalive
time stamps
TCP path discovery
MTU window

Answer: BCD

Question: 5
A network administrator uses IP SLA to measure UDP performance and notices
that packets on one router have a higher one-way delay compared to the opposite
direction. Which UDP characteristic does this scenario describe?

A.
B.
C.
D.
E.

latency
starvation
connectionless communication
nonsequencing unordered packets
jitter

Answer: A

Question: 6
Under which condition does UDP dominance occur?
A.
B.
C.
D.

when TCP traffic is in the same class as UDP
when UDP flows are assigned a lower priority queue
when WRED is enabled
when ACLs are in place to block TCP traffic

Answer: A

Question: 7
Prior to enabling PPPoE in a virtual private dialup network group, which task
must be completed?
A.
B.
C.
D.

Disable CDP on the interface
Execute the vpdn enable command.
Execute the no switchport command.
Enable QoS FIFO for PPPoE support.

Answer: B

Question: 8
A network engineer has been asked to ensure that the PPPoE connection is
established and authenticated using an encrypted password. Which technology,
in combination with PPPoE, can be used for authentication in this manner?
A.
B.
C.
D.
E.

PAP
dot1x
Ipsec
CHAP
ESP

Answer: D

Question: 9
A corporate policy requires PPPoE to be enabled and to maintain a connection
with the ISP, even
if no interesting traffic exists. Which feature can be used to accomplish this task?
A.
B.
C.
D.
E.

TCP Adjust
Dialer Persistent
PPPoE Groups
half-bridging
Peer Neighbor Route

Answer: B

Question: 10
Which PPP authentication method sends authentication information in clear text?
A. MS CHAP
B. CDPCP
C. CHAP
D. PAP
Answer: D

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