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GATE | GATE CS Mock 2018 | Set 2 | Question 18

An application layer is an abstraction layer that specifies the shared communications protocols and interface methods used by hosts in a communications network. Consider the following statements regarding various application layer protocols: (S1) : BOOTP is a Host initialization protocol which is implemented using the Transmission Control Protocol (TCP) as transport protocol. (S2) : Domain Name System (DNS) is Networking support protocol which uses User Data Protocol (UDP) as transport protocol. (S3) : Simple Network Management Protocol (SNMP) is a Remote host management protocol which uses Transmission Control Protocol (TCP) as transport protocol. Which of the following option is True?

(A)

Only (S1) and (S2) are not correct.

(B)

Only (S1) and (S3) are not correct.

(C)

Only (S2) and (S3) are not correct.

(D)

All statements (S1), (S2), and (S3) are correct.

Answer

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