M.Sc. (Semester IV) (CBCS) Examination Nov/Dec-2018
Electronics
NETWORKING AND DATA COMMUNICATIONS
Time: 2½ hrs Max. Marks: 70
Instructions: Attempt five questions.
Q. 1 and 2 are compulsory.
Answer any three questions from Q.3 to Q.7
Figures to the right indicate full marks.
Q.1 Choose correct answer. 08
The address space of IPv4 is address.
2128 264
216 232
The layer come under the IEEE802.11 specifications.
session network
physical transportation
The isochronous transmission guarantees the frame arrive at a
rate.
variable fixed
both a and b none of these
The layer has his sub-layer as Media Access Control (MAC).
physical network
presentation data link
The Open Shortest Path First (OSPF) is an implementation of the
protocol.
link state path vector
distance vector all of these
The RG-58 is used for ethernet.
thick thin
wireless no of these
The TDD-TDMA is a type of communication.
full duplex duplex
half duplex simplex
The TDP &UDP are layer protocols.
physical transport
presentation session
State True or false. 06
The 68:21:D2:01:2E:4B is multicast address.
The BSS with an AP is called an Ad-Hoc network.
The L2CAP provides Multiplexing, Segmentation and reassembly and
QoS.
The IP address 118.45.69.100 is Class-A address.
The ATM is a byte relay protocol.
In ADSL the Channel-0 is reserved for voice communication.
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Q.2 Attempt two short questions. 10
Explain bridges and routers.
Explain the IPv4 protocol.
Explain remote logging.
Discuss datagram switched network. 04
Q.3 Discuss the OSI model. 09
Discuss the SONET. 05
Q.4 Explain in detail IPv6 addressing. 09
Discuss standard Modem. 05
Q.5 Explain ATM technology. 09
Discuss the connecting devices. 05
Q.6 Explain the guided and unguided transmission media. 09
Discuss the domain name system. 05
Q.7 Explain role of cryptography in networking. 09
Explain the multicast routing protocol. 05