CPE 400 Midterm Exam Questions & Answers 2023/2024
How many states does TCP (client and server) have? - ANSWER-11-
Listen
Syn-Sent
Syn-Received
Established
Fin-Wait-1
Fin-Wait-2
Close-Wait
Closing
Last-Ack
Time-Wait
Closed
What does Listen state signify? - ANSWER-The server is wait...
CPE 400 Midterm Exam Questions &
Answers 2023/2024
How many states does TCP (client and server) have? - ANSWER-11-
Listen
Syn-Sent
Syn-Received
Established
Fin-Wait-1
Fin-Wait-2
Close-Wait
Closing
Last-Ack
Time-Wait
Closed
What does Listen state signify? - ANSWER-The server is waiting for an incoming call
What does Syn-Sent state signify? - ANSWER-The client has started to open a connection
What does Syn-Received state signify? - ANSWER-A connection request has arrived
What does Established state signify? - ANSWER-Normal data transfer state
What does Fin-Wait-1 state signify? - ANSWER-Client has said it's finished
What does Fin-Wait-2 state signify? - ANSWER-Server has agreed to release
, What does Close-Wait state signify? - ANSWER-Server has initiated a release
What does Closing state signify? - ANSWER-Both sides have tried to close simultaneously
What does Last-Ack state signify? - ANSWER-Wait for pending packets
What does Time-Wait state signify? - ANSWER-Wait for pending packets
What does Closed state signify? - ANSWER-represents no connection state at all.
Which statement is true about the resource record of type A?
a) It stores the IP address of a server
b) It is used mostly for SMTP relaying
c) It is an alias name for some canonical name
d) None of the above - ANSWER-a) it stores the IP address of a server
Which one of the following is
NOT a function of transport layer?
a) routing
b) flow-control
c) congestion control
d) All of the above - ANSWER-a) routing
What is the difference between iterative and recursive DNS query? - ANSWER-Iterative: puts burden of
name resolution on local DNS server no or low load at upper levels of hierarchy No caching of DNS
information in upper levels of hierarchy
Recursive: puts burden of name resolution on contacted name server heavy load at upper levels of
hierarchy advantage of caching of DNS information in upper levels of hierarchy
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