Question Bank on Information Security

Frequently Asked Questions (FAQ)

(Unit-1)

Multiple Choice Questions:

1.  Which of the following term indicates that the data is not modified by unauthorised users? 

• Confidentiality
• Integrity
• Availability
• Flexibility

2.  Authentication is used for which of the following? 

• Provide access rights
• Verify identify of the user
• Monitor systems connected to a network
• Encrypt data at rest

3.  Which device connects multiple networks? 

• Hub
• Router
• Switch
• Repeater

4.  Information Security is for protecting which of the following? 

• Hardware
• Software
• Data
• Data Center

5.  Reconnaissance means ________________. 

• Gaining access
• Collecting information
• Exploiting system
• Clearing logs

Descriptive Questions (2 Marks):

1. What does the CIA Triad stand for?
2. What do you mean by "Security Attack"?
3. Differentiate active and passive attack.
4. Define data confidentiality.
5. What are the ingredients of Symmetric Cipher model?
6. List the security services available for securing a system from various attacks.
7. What is the main purpose of a firewall?
8. Define stream ciphers.
9. Differentiate Symmetric and Asymmetric cryptography.
10. List the six ingredients of public key encryption.
11. How many modes of operations are there for implementing a Block Cipher?  What are they?
12. Give example for mono alphabetic and poly alphabetic ciphers.