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Port 8 1 is a well known port number associated with: a . Telnet. b . FTP . c . SMTP . d . HTTP
Port is a well known port number associated with:
a Telnet.
b FTP
c SMTP
d HTTP
e None of the above.
The DNS server that receives a DNS query directly from a local DNS is:
a TLD
b Root.
c Domain.
d Authoritative.
c URL.
The protocol that allows user to organize Email messages in folders and keeps user state across sessions is:
a IMAP.
b IGMP.
c POP.
d POP
e ICMP.
SMTP cannot be used by receiver agent to retrieve mail from receivers mail server because:
a SMTP can be used between servers only.
b SMIP is a push protocol.
c SMTP is a pull protocol.
d SMTP is not compatible with user agents.
e None of the above.
One of the following is an application that tolerates delay:
a Interactive games.
b Video streaming.
c Email.
d VoIP.
e None of the above.
With persistent HITP:
a Multiple objects are exchanged over the same TCP connection.
b Multiple objects are exchanged over the same HTTP session.
c Multiple objects are exchanged over the same packet switching connection.
d Multiple objects are exchanged over the same circuit switching connection.
e None of the above:
One of the following is a service that is not provided by TCP:
a Authentication.
b Flow contrel.
c Multiplexing.
d Congestion control.
e All of the above.
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