Operating Systems Security Quiz

What is the primary focus of security in a computer system?

• To protect resources from unauthorized access

• To ensure all data is publicly accessible

• To eliminate all software bugs

• To increase system performance

Which of the following is a method of masquerading in security violations?

• Encrypting data

• Installing antivirus software

• Pretending to be an authorized user

• Using a strong password

What does a Denial of Service (DoS) attack aim to achieve?

• To gain unauthorized access

• To overload a targeted computer

• To steal user data

• To install malware

Which of the following is NOT a type of security violation?

• Breach of performance

• Breach of availability

• Breach of integrity

• Breach of confidentiality

What is the purpose of the 'chmod()' function in operating systems?

• To create new files

• To set file permissions

• To delete files

• To change file ownership

Which of the following is a common type of malware?

• Firewall

• Trojan Horse

• Operating System

• Antivirus

What is the main goal of security hardening in operating systems?

• To reduce vulnerabilities

• To increase software compatibility

• To enhance system performance

• To improve user interface

Which of the following describes a buffer overflow attack?

• Using a weak password

• Accessing unauthorized files

• Overwriting memory due to excessive input

• Inserting malicious code into a program

What is the purpose of a firewall in network security?

• To speed up network traffic

• To limit network access between trusted and untrusted hosts

• To monitor user activity

• To store user data

Which access control policy is based on user roles?

• Attribute-Based Access Control (ABAC)

• Role-Based Access Control (RBAC)

• Mandatory Access Control (MAC)

• Discretionary Access Control (DAC)