TRANSPORT LAYER
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Identifying the applications
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Acknowledging received data
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Tracking individual conversations
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Retransmitting any unacknowledged data
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Reconstructing data in the order received
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Detailed explanation-1: -Which two operations are provided by TCP but not by UDP? (Choose two.) Explanation: Numbering and tracking data segments, acknowledging received data, and retransmitting any unacknowledged data are reliability operations to ensure that all of the data arrives at the destination. UDP does not provide reliability.
Detailed explanation-2: -TCP uses handshake protocol like SYN, SYN-ACK, ACK while UDP uses no handshake protocols. TCP does error checking and also makes error recovery, on the other hand, UDP performs error checking, but it discards erroneous packets. TCP has acknowledgment segments, but UDP does not have any acknowledgment segment.
Detailed explanation-3: -Which two statements apply to the Transport Layer protocols, TCP and UDP? (Choose two.) TCP provides reliability and data acknowledgement. TCP resends lost data and has low overhead. UDP is fast and delivers data as it arrives.
Detailed explanation-4: -Hence, the port numbering and use of checksum are the two characteristics that are utilized by both protocols.