READ Free Dumps For Cisco- 400-101
Question ID 18483 | Drag and drop the Cisco IOS XE subpackage on the left to the function it performs on the
right.
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Option A | Answer :
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Correct Answer | A |
Explanation
Question ID 18484 | Which statement about MSS is true?
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Option A | It is negotiated between sender and receiver.
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Option B | It is sent in all TCP packets.
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Option C | It is 20 bytes lower than MTU by default.
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Option D | It is sent in SYN packets.
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Option E | It is 28 bytes lower than MTU by default.
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Correct Answer | D |
Explanation Explanation: The maximum segment size (MSS) is a parameter of the Options field of the TCP header that specifies the largest amount of data, specified in octets, that a computer or communications device can receive in a single TCP segment. It does not count the TCP header or the IP header. The IP datagram containing a TCP segment may be self- contained within a single packet, or it may be reconstructed from several fragmented pieces; either way, the MSS limit applies to the total amount of data contained in the final, reconstructed TCP segment. The default TCP Maximum Segment Size is 536. Where a host wishes to set the maximum segment size to a value other than the default, the maximum segment size is specified as a TCP option, initially in the TCP SYN packet during the TCP handshake. The value cannot be changed after the connection is established. Reference: http://en.wikipedia.org/wiki/Maximum_segment_size