READ Free Dumps For Cisco- 400-101

Question ID 18495	A TCP/IP host is able to transmit small amounts of data (typically less than 1500 bytes), but attempts to transmit larger amounts of data hang and then time out. What is the cause of this problem?
Option A	A link is flapping between two intermediate devices.
Option B	The processor of an intermediate router is averaging 90 percent utilization.
Option C	A port on the switch that is connected to the TCP/IP host is duplicating traffic and sending it to a port that has a sniffer attached.
Option D	There is a PMTUD failure in the network path.
Correct Answer	D

Explanation Explanation: Sometimes, over some IP paths, a TCP/IP node can send small amounts of data (typically less than 1500 bytes) with no difficulty, but transmission attempts with larger amounts of data hang, then time out. Often this is observed as a unidirectional problem in that large data transfers succeed in one direction but fail in the other direction. This problem is likely caused by the TCP MSS value, PMTUD failure, different LAN media types, or defective links. Reference: http://www.cisco.com/c/en/us/support/docs/additional-legacy-protocols/ms- windows-networking/13709-38.html

Question ID 18496	Which two statements about packet fragmentation on an IPv6 network are true? (Choose two.)
Option A	The fragment header is 64 bits long.
Option B	The identification field is 32 bits long.
Option C	The fragment header is 32 bits long.
Option D	The identification field is 64 bits long.
Option E	The MTU must be a minimum of 1280 bytes.
Option F	Answer : A,B Explanation: The fragment header is shown below, being 64 bits total with a 32 bit identification field: Reference: http://www.openwall.com/presentations/IPv6/img24.html
Correct Answer	F

Explanation

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