100-160 Question 112
Select 3A cybersecurity analyst at your organization has identified that several systems are missing critical security updates, making them vulnerable to attacks. As part of the remediation process, you are tasked with ensuring the operating systems are secure. Which of the following actions align with operating system security best practices?
- A
Enable automatic updates to ensure the operating system receives the latest security patches.
- B
Disable unused services and ports to reduce the attack surface.
- C
Grant all users administrative privileges to improve system accessibility.
- D
Implement strong password policies to prevent unauthorized access.
- E
Turn off the firewall to improve system performance.
Show answer and explanation
Correct answers: A, B, D
Explanation
Operating system security best practices involve proactive measures to reduce vulnerabilities and protect against threats. Enabling automatic updates, disabling unused services and ports, and enforcing strong password policies are essential steps to ensure the security and integrity of the system. Actions such as granting excessive permissions or turning off critical defenses like the firewall should be avoided as they compromise the system’s security.
- A. Correct.
Enabling automatic updates ensures that the operating system is regularly updated with the latest security patches, thereby addressing known vulnerabilities.
- B. Correct.
Disabling unused services and ports reduces the system's attack surface, minimizing potential entry points for attackers.
- C. Incorrect.
Granting all users administrative privileges poses a security risk as it increases the potential for accidental or malicious changes to the system.
- D. Correct.
Implementing strong password policies helps prevent unauthorized access by ensuring users create secure and complex passwords.
- E. Incorrect.
Turning off the firewall weakens the system's defenses and makes it more vulnerable to network-based attacks.