INFORMATION AND NETWORK SECURITY INS June 2010 Semester 6 BE IT

INFORMATION AND NETWORK SECURITY INS June 2010 Semester 6 BE IT

Con. 3495-10.                     (REVISED COURSE)                                     AN-4588
                                                  (3 Hours)                                       [Total Marks:100]

N.B.: (1) Question No. 1 is compulsory.
         (2) Attempt any four questions out of remaining six questions

1. (a)	What are the key principles of security ? Explain with example ?	5
(b)	Compare secret key and public key encryption ?	5
(c)	Distinguish among Vulnerability,threat and control.	5
(d)	List three controls that could be applied to detect or prevent salami attacks ?	5
2. (a)	Compare AES and DES. Comment on Double and Triple DES ?	10
(b)	What is digital signature ? Explain in brief ?	10
3. (a)	Explain Denial of Service attack in networks.	10
(b)	List and explain various malicious and non-malicious codes with examples.	10
4. (a)	What is firewall ? Describe the types of firewalls with their limitations ?	10
(b)	Describe the types of IDSs and their limitations ? Why we need hybird IDSs ?	10
5. (a)	Explain the use of temporal, physical and logical separation for security in	10
	Computing environment ?
(b)	What are the various forms of prtection that operating system applies at the file	10
	level
6. (a)	What is the term Risk Analysis ? Explain in detail the steps in Risk analysis ?	10
(b)	Explain Secure-Email system with example.	10
7.	Write short notes on any three of the following :-	20
	(a) Kerberos System
	(b) RSA algorithm
	(c) Hash functions
	(d) ARP Spooting.

Also see Information and network security question papers for May2011