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GATE | Sudo GATE 2020 Mock III (24 January 2019) | Question 18
Consider the following statements about the routing protocols, Simple Mail Transfer Protocol (SMTP), Dynamic Host Configuration Protocol (DHCP) and Domain Name Service (DNS) in an IPv4 network.
I. Port number for SMTP is 23
II. DHCP uses UDP (user data protocol)
III. DHCP gives IP addresses to hosts
IV. Port number for DNS is 53
Which of the following above are CORRECT ?
(A)
I and IV only
(B)
I, II and III only
(C)
I, II and IV only
(D)
II, III and IV only
Answer
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