This is the questions and answers section on "Operating Systems Security" with explanation for various interview, competitive examination and entrance test. Solved examples with detailed answer description, explanation are given and it would be easy to understand.
1. Which of the following are forms of malicious attack ?
- A. Theft of information
- B. Modification of data
- C. Wiping of information
- D. All of the mentioned
Answer: Option D
Explanation:
None.
2. What are common security threats ?
- A. File Shredding
- B. File sharing and permission
- C. File corrupting
- D. File integrity
Answer: Option B
Explanation:
Sharing and associated permissions are usual exploits which can compromised the system.
3. From the following, which is not a common file permission ?
Answer: Option C
Explanation:
None.
4. Which of the following is a good practice ?
- A. Give full permission for remote transferring
- B. Grant read only permission
- C. Grant limited permission to specified account
- D. Give both read and write permission but not execute.
Answer: Option C
Explanation:
limited access is a key method to circumvent unauthorized access and exploits.
5. What is not a good practice for user administration ?
- A. Isolating a system after a compromise
- B. Perform random auditing procedures
- C. Granting privileges on a per host basis
- D. Using telnet and FTP for remote access.
Answer: Option D
Explanation:
Telnet and FTP are not encrypted and can be compromised.
