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Computer Networks
Reliable Data Transfer
Q
Which layer is more helpful in providing reliable data transmission service?
AA. Transport layer
BB. Datalink layer
CC. Application layer
DD. Network layer
Correct Answer:
A. A. Transport layer
Explanation:
Transport layer uses some protocols, such as UDP, TCP and SCTP to accomplish reliability. UDP works well for real time data and has multiple ways for packet transmission. SCTP and TCP also provide reliable services by establishing connections and make use of their special features like error control and flow control.
