100-160 Question 111
Select 3A cybersecurity technician is tasked with securing a company's servers running different operating systems. The technician mentions enabling file permissions, applying system updates, and disabling unnecessary services as part of the process. Which of the following are critical operating system security concepts the technician is implementing?
- A
Enforcing least privilege through file permissions
- B
Ensuring system integrity with regular updates
- C
Enhancing performance by optimizing network bandwidth
- D
Reducing attack surface by disabling unnecessary services
- E
Improving encryption strength by using stronger algorithms
Show answer and explanation
Correct answers: A, B, D
Explanation
The question highlights key operating system security concepts, including enforcing least privilege (file permissions), keeping the system updated to prevent vulnerabilities, and reducing the attack surface by disabling unnecessary services. These measures help ensure a secure operating environment and mitigate risks effectively.
- A. Correct.
Enforcing least privilege through file permissions is a fundamental security concept to limit access to sensitive files and resources.
- B. Correct.
Applying regular system updates ensures vulnerabilities are patched, maintaining system integrity and protecting against exploits.
- C. Incorrect.
While optimizing network bandwidth can improve performance, it is not directly related to operating system security concepts.
- D. Correct.
Disabling unnecessary services reduces the attack surface by limiting the number of potential entry points for attackers.
- E. Incorrect.
Improving encryption strength is important for securing data, but it is not directly related to the operating system's security framework.