Guru Gobind Singh Indraprastha Vishwavidyalaya 2007 B.E Mechanical Engineering LAN & NETWORKING - Question Paper
END TERM exam
FOURTH SEMESTER [B.TECH] – MAY-JUNE 2007
LAN & NETWORKING
(Please write'your Exum Roll No.) Exam Roll No.
Fourth Semester [B.Tech.]- May-Junb2007
|
Paper Code:ETME212 |
Subject: LAN 6 Networking |
|
Time: 3 Hours |
Maximum Marks: 75 |
|
Note: Attempt one question from each unit. Question No. 1 is compulsory. | |
Q.1 Answer the following: - (2.5x10)
(a) Explain how the 10 Mbps Ethernet can also be made to function as 100 Mbps Ethernet or fast Ethernet?
(b) Explain why IEEE 802.11 Wireless LAN will not benefit from the Collision Detection Capability of CSMA/CD?
(c) What is a virtual LAN and why it is called so?
(d) Why is IPV6 considered better than IPV4? Has this standard being completely deployed in Internet? Give reasons.
(e) Discuss the PLUG and PLAY" features of the bridge,
(f) Explain Cut through switching.
(g) What is broadband Internet connection?
(h) Explain in short the TCP/IP model.
(i) What is encryption? Give two algorithms of encrypting he plain text.
(j) Explain what is guided & unguided medja? Give examples.
UNIT-1
Q.2 (a) Explain in detail various type of error detecting and error correcting codes, (6.5) (b) Explain how CRC of a message can be calculated? Give examples. (6)
Q.3 Explain how both Flow Control and Error Control in done in stop and wait protocol and sliding window protocol. (12*5)
UNIT-II
Q.4 Explain the following routing algorithms with help of diagrams and examples.
(a) Distance Vector Routing (6)
(b) Link-State Routing (6.5)
Q.5 (a) Explain what is a subnet mask and how sub-netting can be done? (6) (b) Explain various classes of class full routing. Explain class-less routing. (6.5)
UNIT-III
Q.6 (a) Explain how the OSI architecture is mapping to the TCP/IP architecture by giving the functionality of each layer of both architecture. (9)
(b) Give reasons as to why the seven layered OSI architecture is compressed into 5-layered TCP/IP architecture of Internet (3.5)
Q.7 (a) Sketch; the Manchester and differential Manchester encoding for the bit stream 0001110101. ~
(b) Consider building a CSMA/D network running st 1Gbps over 1-km cable with no repeaters. The signal speed in the cable is 200,000 km/sec. What is th minimum, frame size? I (6.5) .
't. > ,cvv.
UNIT-1 V
. ' V . *
Q.8 Explain the following applications in detajl give its uses amd its data formats and their port numbers. 1 (6.5+6)
(a) HTtP ,i L-5 r..
(b) DNS M
Q.9 (a) Explain what types of attacks can be made on the" network of an organization? (6.5)
(b) Give a detailed account of security mechanism and services to avert the attack. (6)
************
> i y
|
Attachment: |
| Earning: Approval pending. |
