INFORMATION AND NETWORK SECURITY INS May 2013 Semester 6
BE IT
Con.7257-13 GS-9810
(3 Hours) [Total Marks:100]
N.B 1) Question No.1 is Compulsory.
2) Attempt any Four out of remaining
Q.1 (a) | Consider online examination system, where students can login and answer questions | (05) |
| online. For this system identify vulnerability, threat and attacks | ||
| (b) | Describe and explain theDenial of Service (DOS) attack in a network. What controls | (05) |
| are required to avoid it. | ||
| (c) | Describe any two malicious program flaws | (05) |
| (d) | Explain covert channels and why they are a security threat. | (05) |
Q.2 (a) | Explain "Buffer Overflow" and "Incomplete Mediation" flaws in a program and how | (10) |
| they can be used to attack the system. | ||
| (b) | Describe in detail how Antivirus program work. | (10) |
Q.3 (a) | What are the measures provided by an Operating System for security | (10) |
| (b) | List and describe the flaws present in the TCP protocol that can lead to security | (10) |
| breaks. | ||
Q.4 (a) | Describe the working of the RSA algorithm. Illustrate the working using the values | (10) |
| of P=5 and q=7. | ||
| (b) | Explain the concept of a Digital Signature". Describe a public key method to create | (10) |
| and check digital signatures. | ||
Q.5.(a) | How are hash functions useful for information Security. Explain any one Hash Security | (10) |
| algorithm. | ||
| (b) | Explain the role of a firewall in securing a network. Describe different types | (10) |
| of firewall | ||
Q.6 (a) | Explain the working of Kerberos in detail | (10) |
| (b) | Describe different types of Intrusion Detection System (IDS) | (10) |
Q.7 (a) | Write a detailed note on the following topics:- | |
| 1. Secure Sockets Layer (SSL) | (10) | |
| 2. DES Algorithm | (10) |
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