Download AKTU B-Tech 7th Sem 2015-2016 EEC 702 Data Communication Networks Question Paper

Download AKTU (Dr. A.P.J. Abdul Kalam Technical University (AKTU), formerly Uttar Pradesh Technical University (UPTU) B-Tech 7th Semester (Seventh Semester) 2015-2016 EEC 702 Data Communication Networks Question Paper

Printed Pages : 4 309 I EEC-702
(Following Paper ID and Roll No. to be filled in your
Answer Book)
Roll No.
B.Tech.
(SEM. VII) THEORY: EXAMINATION, 2015-16
DATA COMMUNICATION N ETWORKS
Time : 3 hours] . [Maximum Marks : 100
Part-A
1. Attempt all sections. All sections carry equal marks.
Write answer of each sections in short. (10X2_=20)
(a) What do you mean by de jure and de facto
standards?
(b) What are the ?mdamental characteristics on which
the effectiveness 'of data communication depends
on? '
(c) What are the advantages of distributed processing?
(d) What are the three criteria necessary for an
effective and ef?cient network?
14825 ? (1) P.T.O.

Q2.
Q3.
Q4.
14825 (2)
(6) Give the frame format ofIEEE standards 802 for
LAN.
(D What are the responsibilities of physical layer data
link layer?
(g) For n devices in a network, what is the number of
cable links necessary for mesh, ring, and bus and
'star networks?
(h) What is the purpose of the timer at the sender site
in systems using ARQ?
(i) Give data transfer modes of HDLC?
0) How TCP diffwer from the sliding window
protocols.
Section-B
Attempt any five questions from this sections.
(5 X 10=50)
Explain and compare the performance of different line
coding scheme.
Explain IPv4 and IPv6 Internet protocol.
Explain in short IEEE standards 802 for LAN.
EEC-702
Q5.
Q6.
Q7.
Q8.
Q9.
Q10.
De?ne and explain the various frame type in HDLC.
Design a three stage. 200 X 200 switch with K=4 and
n=20.
How do we say collision detection is analog process?
Why do we prefer CSMA over ALOHA? Prove that
maximum ef?ciency of ALOHA is l/e.
Discuss the various design issue involved in ATM
Technology and also explain the different layers of ATM.
Write a short note on:
(i) Message Integrity
(ii) Digital Signature
(iii) Cryptography
Explain the CRC error detection technique generator
polynomial X4+X3+1 and data is 11100011.
Section?C
Attempt any two questions. (2 X 15=30)
What is the various design issues involved in the network
layer? What do you mean by intradomain and interdomain
routing techniques? Explain link state routin g with
suitable example.
14825 . (3) ? P.T.O.

Ql 1 What do you mean by layered architecture? Explain the
roll of each layer in 081 Model.
Q 12. Explain controlled access method and Discuss CSMA/
CA random access method.
14825 ~ (4) EEC-702