The transport layer protocols used for Secure Shell (SSH), Domain Name System (DNS), Dynamic Host Configuration Protocol (DHCP) and Hypertext Transfer Protocol (HTTP), respectively are:
(A) UDP, UDP, UDP and UDP
(B) TCP, UDP, UDP and TCP
(C) TCP, UDP, UDP and UDP
(D) TCP, UDP, TCP and UDP


Answer: (B)

Explanation: Transport layer protocol Secure Shell (SSH) uses TCP, Domain Name System (DNS) uses UDP, Dynamic Host Configuration Protocol (DHCP) uses UDP and Hypertext Transfer Protocol (HTTP) uses TCP.

So, option (B) is correct.

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