100-160 Question 143
Select 3You are a junior cybersecurity technician and receive a notification about a critical vulnerability in a widely-used operating system. Your manager asks you to ensure the systems in your organization are secure. What are the appropriate steps to implement software updates while minimizing potential disruptions?
- A
Review the update release notes to understand its impact and applicability.
- B
Immediately deploy the update to all production systems without testing to ensure rapid mitigation.
- C
Test the update in a staging environment that replicates production systems.
- D
Schedule the update deployment during a planned maintenance window.
- E
Disable antivirus software before applying the update to prevent interference.
Show answer and explanation
Correct answers: A, C, D
Explanation
Implementing software updates in a cybersecurity context requires careful planning and execution to ensure systems remain secure and operational. Reviewing release notes helps understand the update's purpose, testing in a staging environment prevents unexpected issues, and scheduling updates during maintenance windows minimizes disruption. These steps align with best practices for secure and effective update management.
- A. Correct.
Reviewing the update release notes is essential to understand the purpose, potential impact, and any prerequisites for the update.
- B. Incorrect.
Immediately deploying updates without testing is not recommended as it can cause unexpected issues, especially in production environments.
- C. Correct.
Testing the update in a staging environment ensures that the update works as expected and does not introduce new issues in the production environment.
- D. Correct.
Scheduling the update deployment during a planned maintenance window minimizes disruptions to normal business operations.
- E. Incorrect.
Disabling antivirus software is not recommended unless explicitly instructed by the update documentation, as it can introduce security vulnerabilities.