Examcollection 400-101 BrainDumps

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CISCO 400-101 in just 24 Hours!!!
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Questions Answers Zone
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Questions 1
What is the most efficient way to confirm whether
microbursts of traffic are occurring? A. Monitor
the output traffic rate using the show interface
command. B. Monitor the output traffic rate using
the show controllers command. C. Check the CPU
utilization of the router. D. Sniff the traffic
and plot the packet rate over time.
Answer D
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Questions 2
What is Nagle's algorithm used for? A. To
increase the latency B. To calculate the best
path in distance vector routing protocols C. To
calculate the best path in link state routing
protocols D. To resolve issues caused by poorly
implemented TCP flow control.
Answer D
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Questions 3
Which statement is true regarding the UDP
checksum? A. It is used for congestion
control. B. It cannot be all zeros. C. It is used
by some Internet worms to hide their
propagation. D. It is computed based on the IP
pseudo-header.
Answer D
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Questions 4
Which statement describes the purpose of the
Payload Type field in the RTP header? A. It
identifies the signaling protocol. B. It
identifies the codec. C. It identifies the port
numbers for RTP. D. It identifies the port
numbers for RTCP
Answer B
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Questions 5
Which Cisco IOS XE process administers routing
and forwarding? A. Forwarding manager B.
Interface manager C. Cisco IOS D. Host manager
Answer C
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Questions 6
Which circumstance can cause packet loss due to a
microburst? A. slow convergence B. a blocked
spanning-tree port C. process switching D.
insufficient buffers
Answer D
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Questions 7
Which two statements about proxy ARP are true?
(Choose two.) A. It is supported on networks
without ARP. B. It allows machines to spoof
packets. C. It requires larger ARP tables D. It
reduces the amount of ARP traffic.
Answer B, C
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Questions 8
Which option is the most effective action to
avoid packet loss due to microbursts? A.
Implement larger buffers. B. Install a faster
CPU. C. Install a faster network interface. D.
Configure a larger tx-ring size.
Answer A
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Questions 9
Which two statements about packet fragmentation
on an IPv6 network are true? (Choose two.) A.
The fragment header is 64 bits long. B. The
identification field is 32 bits long. C. The
fragment header is 32 bits long. D. The
identification field is 64 bits long. E. The MTU
must be a minimum of 1280 bytes. F. The fragment
header is 48 bits long.
Answer A, B
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Questions 10
How many hash buckets does Cisco Express
Forwarding use for load balancing? A. 8 B. 16 C.
24 D. 32
Answer B
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