it 503 - kopykitab

IT 503

B.E. Semester

Examination, December 2014

Computer Networks

Time : Three Hours

Maximum Marks : 70

http://www.rgpvonline.com

Note: i) Answer five questions. In each question part A, B, C is compulsory and D part has internal

choice.

ii) All parts of each question are to be attempted at one place.

iii) All questions carry equal marks, out of which part A and B (Max.50 words) carry 2 marks, part C

(Max.100 words) carry 3 marks, part D (Max.400 words) carry 7 marks.

iv) Except numericals, Derivation, Design and Drawing etc.

Unit - I

1 a) What do you mean by the term "clock based framing"?

b) List the common types of cables and fibers available for local links.

c) Give the token ring frame format of 802.5.

d) Explain how network are constructed from two classes of hardware building blocks.

OR

Compare and contrast stop and wait and sliding window protocol in detail with an illustration.

Unit-II

2. a) Give the example for the bit/byte oriented protocols.

b) Explain hidden/ exposed terminal problem.

c) What congestion control? Strategy is adapted in TCP

d) Describe in detail about the physical properties and collision avoidance scheme present in wi-fi.

Or

Explain in details about ethernet 802.3 with its access protocol and addressing mechanism

Unit- III

3. a ) Show the NRZ and Manchester encoding for the bit patterns shown below

101011111010111110010111110110.

b) Explain the token early/delayed released.

c) Differentiate secret key and public key encryption technique.

d) Explain in detail about the congestion avoidance mechanisms.

OR

Write short notes on following with respect to TCP.

i) End to end issues

ii) Connection establishment and termination

Unit - IV

4. a) How does a single bit error differ from a burst error?

b) What is the purpose of sequence number in TCP packet?

c) Define the terms broadcasting unicasting and multicasting.

d) What is the difference, if any, between static routing using two equally weighted alternatives and

selective flooding using only the best paths? Justify your answer.

OR

Why is UDP needed? Why can't user program directly access IP?

Unit - V

5. a) Comment on the term "keeping the pipe full".

b) List the single entry that is present in a VC table on a single switch.

c ) Draw the block diagram fix a JPEG compression technique.

d) Discuss in detail about the Karlin and Jacobson algorithm for transport layer routing.

OR

enumerate on the various TCP congestion control scheme with their merits and demerits.

http://www.a-pdf.com/?pc-demo

IT - 501 PTO IT - 501

Total No. of Questions :5] [Total No. of Printed Pages : 2 [2]

Roll No ................................

IT - 501

B.E. V Semester


Data Communication Time : Three Hours

Maximum Marks : 70

Note: i) Answer five questions. In each question part A, B, C is

compulsory and D part has internal choice.

ii) All parts of each question are to be attempted at one

place.

iii) All questions carry equal marks..out of which partA and B

(Max.50 words) carry 2 marks, part C (Max.100 words)

carry 3 marks, part D (Max.400 words) carry 7 marks.


Unit - I

1. a) Name and explain the types of transmission impairments.

b) Distinguish between baseband and broadband

transmission.

c) How can a composite signal be decomposed into its

individual frequencies?

d) Explain the terms latency and propagation time. What is

the propagation time if the distance between the two points

is 12,000 km? Assume propagation speed to be 2.4 x 108

m/s in cable. Or

What is bandwidth - delay product? Explain in detail. What

is Jitter?

Unit - II 2. a) Explain the terms- simplex, half duplex and full duplex

data transfer.

b) What are the different types of serial communications?

c) What does the term 'MODEM' stand for? What is the

function of a modem?

d) Explain the different line coding schemes used in data

communications. Or

What is line configuration? What are the advantages of a

multipoint connection over a point-to-point connection? Unit - III

3. a) What is LATA? What are inter - LATA and intra - LATA

services?

b) What is multiplexing? Name and explain in brief the types

of multiplexing.

c) Distinguish between synchronous and statistical TDM.

d) What is DSL technology? What are the various services

provided by the telephone companies using DSL?

Distinguish between a DSL modem and a DSLAM.

Or

What is SDH? How is it different from SONET?

Unit - IV

4. a) Describe the need of switching. Define a switch.

b) What are the two approaches of packet switching?

c) What is an error? What are single and burst errors?

d) Draw and explain the architecture of ISDN.

Or

Enlist and explain the different services offered by ISDN.

Unit - V

5. a) What are the criteria used to evaluate transmission media'?

b) What is the major advantage of shielded twisted-pair over

unshielded twisted pair?

c) Name the advantages of optical fiber over twisted-pair

and coaxial cable.

d) Why is there a distance limit for terrestrial microwave?

What factors do you need to calculate this limit? Or

What is NIC? What are cross connection and straight

connection cables?

http://www.rgpvonline.com/


IT - 502

B.E. V Semester


Information Storage and Management

Time : Three Hours

Maximum Marks : 70

Note : i) Answer five questions, In each question part A, B, C is compulsory and D part has internal choice.

ii) All parts of each questions are to be attempted at one place.

iii) All questions carry equal marks, out of which part A and B (Max.50 words) carry 2 marks, part C

(Max. 100 words) carry 3 marks, part D (Max.400 words) carry 7 marks.

iv) Except numerical, Derivation, Design and Drawing etc.

UNIT - I

1. a) What problems arise due to data proliferation.

b) What is the significance of Data Center in storage technology.

c) Enlist the stages of Business continuity (BC) planning life cycle.

d) The average I/O size of an application is 64 KB. The following specification are available from Disk

manufacture average seek time = 5 ms, 7200 rpm, transfer rate = 40 MB/ S. Determine maximum IOPS that

could be performed with the disk for this application.

OR

Which skills are required for storage management? What kind of activities are performed in storage

management.

UNIT - II

2. a) What is meant by zoned bit recording.

b) Define SAN (Storage Area Network)

c) How RAID4 is different from RAID3?

d) Explain the components of Intelligent storage system

OR

What is Information Lifecycle Management (ILM)?

Explain characteristics and benefit of ILM.

UNIT - III

3. a) What are the benefits of DAS (Direct Attached Storage)?

b) What is clustering in storage?

c) Explain the feature of Content Addressable Storage (CAS)?

d) Explain storage security domain with reference to threats, availability control and examples.

OR

Explain RAID levels in detail with neat diagram.

UNIT - IV

4. a) What is Fiber channel Arbitrated loop?

b) How to measure the Disk Derive Performance.

c) Write a note on virtual tape library.

d) What kind of storage management standards like Storage Management Initiative-Specification (SMIS) and

Common Information Model (CIM) is initiative taken by industry Management.

OR

What is Backup? Which are three main purpose to do Backup? Explain methods and process of doing Backup.

UNIT-V

5. a) How does cloud computing provides on demand functionality?

b) What does software as a service provide?

c) What is difference between scalability and elasticity for cloud computing?

d) What is secure execution environment and communication in cloud? Explain different threats and

vulnerabilities specific to virtual machine.

OR

Explain how Big tables are stored on distributed File system such as GFs or HDFS.

http://www.rgpvonline.com

RGVP Information Technology 5thSemester Previous Year Question Paper

Publisher : Faculty Notes Author : Panel Of Experts

Type the URL : http://www.kopykitab.com/product/10191

Get this eBook

50%OFF

http://www.kopykitab.com/index.php?route=product/product&product_id=10191

it 503 - kopykitab

Documents