Download SGBAU BCA 2019 Summer 5th Sem Network Security Question Paper

Download SGBAU (Sant Gadge Baba Amravati university) BCA 2019 Summer (Bachelor of Computer Applications) 5th Sem Network Security Previous Question Paper

AVV?lSll
B.C.A. Part?III (Semester?V) Examination
NETWORK SECURITY
Paper?SSTZ
Time : Three Hours] [Maximum Marks : 60
Note :??(1) ALL questions are compulsory.
(2) All questions carry equal marks.
1. (a) What are the essential ingredients of Symmetric Cipher ? Explain with diagram. 6
(h) Explain Model for Network Security in brief. 6
OR
2. (:1) Explain the module for Network Security. 6
(b) Explain the Symmetric Cipher Model. 6
3. (a) Explain Cipher Block Chaining. 6
(h) Describe the concept of Block Cipher and Stream Cipher. 6
OR
4. (:1) Explain the parameters and design choices that determine the actual algorithm ol'Feistal
Cipher. 6
(b) Discuss the operation of Data Encryption Standard (DES). 6
5. (:1) Discuss Modular Arithmetic Operation. 6
(b) State and prove Euler?s Theorem. 6
OR
6. (3) Describe the divisibility and division algorithm. 6
(b) Explain the following terms :??
(1) Group
(2) Ring
(3) Field. 6
7. (a) Explain RSA Public Key Encryption Algorithm. 6
(b) What are the principal elements of Public-key Crypto System ?? 6
OR
8. (3) Explain Public Key Cryptography with suitable diagram. 6
(b) Write importance of Digital Signature. 6
9. (21) Give examples of application of IP Security. 3
(b) What are Firewalls ? Explain. 3
(c) What are MIME and S/MIME ? Explain. 6
OR
10. (3) Explain Transport Layer Security. 6
(b) Explain pretty good Privacy in e-mail security. 6
YBC~?15375 175