Download JNTUH MCA 3rd Sem R15 2017 August 823AE Computer Networks Question Paper

FirstRanker.com

Code No: 823AE R15

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

--- Content provided by FirstRanker.com ---

FirstRanker.com

MCA III Semester Examinations, August - 2017

COMPUTER NETWORKS

Time: 3hrs Max.Marks:75

Note: This question paper contains two parts A and B.

--- Content provided by FirstRanker.com ---

Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks and may have a, b, c as sub questions.

PART - A

5 x 5 Marks = 25

1. What is Hamming code? How it is useful in computer networks? [5]
2. Write the functions of MAC and LLC. [5]

--- Content provided by FirstRanker.com ---

3. What is optimality principle in routing? Explain briefly. [5]
4. Describe in detail about tunneling. [5]
5. Compare TCP and UDP. [5]

PART -B

5 x 10 Marks =50

--- Content provided by FirstRanker.com ---

1. Describe the layers of OSI reference model and compare it with TCP model. [10]
   OR
   Explain stop and wait protocol in detail.
2. Explain, How flow control is achieved in datalink layer? [5+5]
   OR
   

   --- Content provided by FirstRanker.com ---

   Explain in detail about ALOHA protocol. [10]
3. Describe MAC protocol operations on a token ring.
   OR
   Give a note on frame formats of token ring. [5+5]
4. What is flooding and describe reliable flooding.
   

   --- Content provided by FirstRanker.com ---

   OR
   Describe hierarchical routing. [5+5]
5. Explain in detail about link state routing algorithm. [10]
   OR
   Describe Address resolution protocol in detail. [10]

--- Content provided by FirstRanker.com ---

6. Describe dynamic host congestion protocol in detail.
   OR
   Write the services of transport layer. [5+5]
7. Describe TCP header in detail.
   OR
   

   --- Content provided by FirstRanker.com ---

   Write short notes on
   a) TELNET
   b) SMTP protocol. [5+5]

FirstRanker.com

--- Content provided by FirstRanker.com ---