M.Sc. Electronics (Semester IV) (CBCS) Examination, 2017
NETWORKING AND DATA COMMUNICATIONS
Day Date: Friday, 21-04-2017 Max. Marks: 70
Time: 02.30 PM to 05.00 PM
Instruction Answer five questions
Question 1 and 2 are compulsory
Attempt any Three from Q.3 to Q.7
Figures to the right indicates full marks.
Q.1 Choose correct answer 8
In IPv4 addressing x. y. z. the/n is defined for
Masking addressing encoding decoding
The reply of the Address Resolution Protocol is
broadcast unicast multicast all of these
IP is an unreliable and data gram protocol.
connection oriented connectionless
both a b none of these
The Bootstrap Protocol (BOOTP) is protocol.
client server client/server none of these
The address space of IPv6 is address.
232 264 216 2128
The uses 2.4 GHz ISM band.
Bluetooth Wi-fi I2C None of these
A proxy firewall filters works at the layer.
Transport Application network physical
The encoding technique, Differential Manchester, has the idea
of
RZ NRZ-I RZ NRZ-L
NRZ NRZ-I NRZ NRZ-L
State True or False 6
The HDB3 substitutes eight consecutive zeros with 000VB0VB.
In ADSL the Channel is reserved for voice communication.
The ADM in the network performs insertion and extraction of
Signals.
The BSS without an AP is called an infrastructure network.
Page 2 of 2
The repeater has filtering capabilities.
In Manchester and Differential Manchester line encoding
technique the transaction at the middle of the bit is used for
synchronization.
Q.2 Attempt two short questions)0 10
Explain congestion control
Explain the Bluetooth technology
Explain the massage authentication
Discuss virtual switched network. 4
Q.3 Discuss the TCP/IP model 9
Discuss PPP 5
Q.4 Explain the DSL technology. 9
Explain the Dual Stacking and Tunneling of IP. 5
Q.5 Explain in detail IPv4 addressing 9
Explain the frequency hopping spread spectrum technique. 5
Q.6 Explain the different multiplexing techniques to improve the efficiency
of the channel.
9
Discuss electronic mail. 5
Q.7 Explain WWW and HTTp. 9
Discuss the firewall. 5