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PROGRAM Master of Science in Information Technology(MSc IT)Revised
Fall 2011
SEMESTER 3
SUBJECT CODE &
NAME
MIT3031–
High Speed Networks
Q1.
List the advantages of packet switching over the circuit switching.
Answer:
Packet switched (PS)
networks quality of service (QoS) is not guaranteed while in circuit switched
(CS) networks quality is guaranteed.
PS is used for time
Qus:2
What are the advantages of virtual path connection (VPC)? Explain.
Answer:
The
advantages of virtual path connection (VPC):
A virtual path
connection (VPC) is a bunch of VCCs share the same endpoints where all the
cells flowing over all the VCCs in a single VPC are switched together. Grouping
connections that share a common path over the network reduces the control
costs. There are many advantages of VPC some of them are mentioned below which
are as follows:
Qus:3
List and explain the issues that we need to resolve while using a mixed ATM LAN
architecture?
Answer:
The
issues that we need to resolve while using a mixed ATM LAN architecture:
·
Difference
in protocols – In connectionless protocols like
Ethernet, a station can send data packets to another station without
establishing or terminating a connection. But connection-oriented protocols like
ATM must first establish a connection and then
Qus:4
What are the objectives that are defined for frame relay congestion control?
Answer:
The
objectives that are defined for frame relay congestion control:
The following
objectives are defined for frame relay congestion control:
·
Minimize
frame discard.
Qus:5
List the timers that TCP maintains for every connection? Explain any three.
Answer:
The
timers that TCP maintains for every connection:
There are seven
timers that TCP maintains for every
connection and
they are:
·
SYNACK
timer
Q6. What are the advantages and disadvantages of
Routing Information Protocol (RIP).
Answer:
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