100-160 Question 114
Select 3A company's IT team has noticed an increase in malicious software infections on their systems. To mitigate the risk, they decide to implement security measures at the operating system level. Which of the following actions would best enhance operating system security?
- A
Regularly apply operating system updates and patches.
- B
Disable the built-in firewall to reduce system resource usage.
- C
Restrict administrative privileges to only necessary personnel.
- D
Turn off antivirus software to improve system performance.
- E
Enable file and folder permissions to control access.
Show answer and explanation
Correct answers: A, C, E
Explanation
Enhancing operating system security requires implementing measures like applying updates and patches to address vulnerabilities, restricting administrative privileges to limit access to critical system functions, and enabling file permissions to control access to sensitive resources. These actions collectively reduce the attack surface and improve system resilience against threats.
- A. Correct.
Regularly applying operating system updates and patches ensures that known vulnerabilities are addressed, reducing the risk of exploitation.
- B. Incorrect.
Disabling the built-in firewall increases the attack surface as it removes a critical barrier that prevents unauthorized network access.
- C. Correct.
Restricting administrative privileges minimizes the potential for unauthorized or accidental changes to critical system configurations.
- D. Incorrect.
Turning off antivirus software exposes the system to malware infections by removing a key layer of defense.
- E. Correct.
Enabling file and folder permissions ensures that only authorized users can access sensitive data, thereby improving security.