Operating System Questions & Answers – Security – User Authentication

This set of Operating System Multiple Choice Questions & Answers (MCQs) focuses on “Security – User Authentication”.

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
View Answer

2. What are the common security threats?
a) File Shredding
b) File sharing and permission
c) File corrupting
d) File integrity
View Answer

3. From the following, which is not a common file permission?
a) Write
b) Execute
c) Stop
d) Read
View Answer

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
View Answer

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
View Answer

6. Which of the following is the least secure method of authentication?
a) Key card
b) fingerprint
c) retina pattern
d) Password
View Answer

7. Which of the following is a strong password?
a) 19thAugust88
b) Delhi88
c) P@assw0rd
d) !augustdelhi
View Answer

8. Why is one time password safe?
a) It is easy to generated
b) It cannot be shared
c) It is different for every access
d) It is a complex encrypted password
View Answer

9. What does Light Directory Access Protocol (LDAP) doesn’t store?
a) Users
b) Address
c) Passwords
d) Security Keys
View Answer

10. What is characteristic of RADIUS system?
a) It is essential for centralized encryption and authentication
b) It works on Network layer to deny access to unauthorized people
c) It provides centralized authentication mechanism via network devices
d) It’s a strong File access system
View Answer

11. Which happens first authorization or authentication?
a) Authorization
b) Authentication
c) Authorization & Authentication are same
d) None of the mentioned
View Answer

12. What are the characteristics of Authorization?
a) RADIUS and RSA
b) 3 way handshaking with syn and fin
c) Multilayered protection for securing resources
d) Deals with privileges and rights
View Answer

13. What forces the user to change password at first login?
a) Default behavior of OS
b) Part of AES encryption practice
c) Devices being accessed forces the user
d) Account administrator
View Answer

14. What is not a best practice for password policy?
a) Deciding maximum age of password
b) Restriction on password reuse and history
c) Password encryption
d) Having change password every 2 years
View Answer

Sanfoundry Global Education & Learning Series – Operating System.

If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]