Network-protocols

Question 1

HELO and PORT, respectively, are commands from the protocols

A
FTP and HTTP
B
TELNET and POP3
C
HTTP and TELNET
D
SMTP and FTP
Computer-NetworksNetwork-ProtocolsGATE 2006-IT
Question 1 Explanation: 
Note: Out of syllabus.
Question 2

Consider the following clauses:
(i) Not inherently suitable for client authentication.
(ii) Not a state sensitive protocol.
(iii) Must be operated with more than one server.
(iv) Suitable for structured message organization.
(v) May need two ports on the serve side for proper operation.
The option that has the maximum number of correct matches is

A
IMAP-(i), FTP-(ii), HTTP-(iii), DNS-(iv), POP3-(v)
B
FTP-(i), POP3-(ii), SMTP-(iii), HTTP-(iv), IMAP-(v)
C
POP3-(i), SMTP-(ii), DNS-(iii), IMAP-(iv), HTTP-(v)
D
SMTP-(i), HTTP-(ii), IMAP-(iii), DNS-(iv), FTP-(v)
Computer-NetworksNetwork-ProtocolsGATE 2007-IT
Question 2 Explanation: 
(ii) HTTP as it does not depend on state of device or operating system.
(v) FTP needs two ports, 20 for data and 21 for control.
Hence, only (D) matches.
There are 2 questions to complete.

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