DCE Mumbai University Question Papers

Hello sir would you please provide me Data Compression and Encryption (DCE) question paper of Mumbai University/??

[Arun Vats]

University of Mumbai was founded in July 18, 1857, it is one of the first three state universities in India,

The University of Mumbai offers Bachelors, Masters and Doctoral degrees apart from diplomas and certificates in many disciplines.

DCE Mumbai University Question Paper:
1. (a) What are the different measures of performance of data compression techniques ? 5
(b) Discuss the applicaltion of JPEG 2000. 5
(c) Compare public and private key crypto-system. 5
(d) What is secure electronic payment system ? 5

2. (a)
A source and its letter form an alphabet A = {a, b, c, d, e} with probabilities
10
P = {0.15, 0.05, 0.25, 0.35, 0.2} respectively. Calculate :-
(i) Standard Huffman code
(ii) Minimum variance Huffman code
(iii) Average length and redundancy of both codes
(iv) Draw the binary code tree for both the codes.
(b) Explain the working of DES with block diagram.

3. (a)
What are dictionary based compression schemes? Explain LZ77 with suitable examples.
10
(b) What are various aspects of conventional encryption ? Discuss the types of attacks. 10

4. (a)
How are differential encoding schemes used in audio compression ?
10
(b) Explain Chinese remainder theorem with an example. 10

5. (a)
Describe various approaches for Image Compression and discuss one of them in
10
detail.
(b) Explain Hash and MAC algorithm used for authenication. 10

6. (a)
Describe the features of Video Compression as compared to Image Compression.
10
Explain MPEG industry standard for video compression.
(b) Explain Digital Immune System. 10

7.
Write short notes on any two :-
20
(a) Firewall design
(b) Elliptic curve cryptography
(c) MPEG audio standard
(d) Two dimensional image transform.

Here I am attaching pdf file of Data Compression and Encryption (DCE) question paper of Mumbai University which are free for download………

(DCE Mumbai University Question Papers)






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Hii guys ,Here I ma looking for Data Compression and Encryption 7th Semester Exam paper of Mumbai University Will you please provide me for my help ?

[Shaleen]

: Friend ,For your Exam Preparation Here I am providing Previous year Data Compression and Encryption 7th Semester Exam paper of Mumbai University :


Ql. (a) What is the need for data compression.
(b) Discuss the application of JPEG 2000.
(c) Compare Cryptography and steganography .
.(d) What is Secure Electronic Payment System.


Q2. (a) A source emits letter from an alphabet A={ a1 , a2 , a3 , a4, a5 } with 10
probabilities P(a1) = 0.15, P(a2) = 0.04, P(a3) = 0.26, P(a4) = 0.05
and P(a5)=0.50.
a) Calculate the entropy of this source
b) Find the Huffman code for this source.
c) Find the average length of the code in
d) and its redundancy.
(b) Explain ADPCM Encoder and Decoder for audio compression


Q4. (a) Explain the working of DES with block diagram 10
(b) Discuss and explain security attacks on the system. 10
Q5. (a) Explain algorithms for RSA using Chinese Remainder Theorem 10
(b) Discuss Classical Encryption Techniques. 10
Q6. (a) Explain Hash and MAC algorithms used for authentication. 10
(b) Discuss certificate based and biometric system.


Q7. Write short notes on.any three:
(a) Approaches to Image Compression.
(b) S-Box Design.
(c) Digital signatures.
(d) Performance and quality measures for compression.

Mumbai University Data Compression and Encryption exam paper