M.Sc. (Semester IV) (CBCS) Examination Mar/Apr-2018
Electronics
NETWORKING AND DATA COMMUNICATIONS
Time: 2½ Hours
Max. Marks: 70
Instructions: Q. and are compulsory. Answer any three questions from Q.3 to Q.7. Answer any 5 questions. Figures to the right indicate full marks.
Q.1
Choose the alternatives given below.
08
The RG-58 is used for ethernet.
thick
thin
wireless
none of these
The reply of the Address Resolution Protocol is
broadcast
unicast
multicast
all of these
In IPv4 addressing, x.y.z.t/n, the is defined for
masking
addressing
encoding
decoding
IP is an unreliable and data gram protocol.
connection oriented
connectionless
both a b
None of these
The layer has his sub-layer as Media Access Control (MAC).
physical
network
presentation
data link
The encoding technique, Differential Manchester, has the idea of
RZ NRZ-I
RZ NRZ-L
NRZ NRZ-I
NRZ NRZ-L
The TDD-TDMA is a type of communication.
full duplex
duplex
half duplex
simplex
The TDP and UDP are layer protocols.
physical
transport
presentation
session
State True or false.
06
The 68:21:D2:01:2E:4B is unicast address.
The HDB3 substitutes eight consecutive zeros with 000VB0VB.
The BSS without an AP is called an Ad-Hoc network.
The repeater has filtering capabilities.
The L2CAP provides Multiplexing, Segmentation and reassembly and QoS.
The ADM in the network performs insertion and extraction of signals.
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SLR-UJ-344
Q.2
Attempt any two of the following.
10
Explain repeater and routers.
Explain the IPv4 protocol.
Explain Bridge Ethernet and Switched Ethernet.
Discuss circuit switched network.
04
Q.3
Explain in detail IPv6 addressing.
09
Discuss the SONET.
05
Q.4
Discuss the OSI model.
09
Discuss standard Modem.
05
Q.5
Explain ATM technology.
09
Discuss the connecting devices.
05
Q.6
Explain the different multiplexing techniques to improve the efficiency of the channel.
09
Explain the frequency hopping spread spectrum technique.
05
Q.7
Explain role of cryptography in networking.
09
Explain the multicast routing protocol.
05