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Question

Difficulty: EasyPatch Management and Software Maintenance

A network administrator receives a critical security update for an enterprise core router's operating system. Which of the following actions should the administrator take first to ensure network stability before deploying the patch to production?

  1. Test the patch in a isolated staging environment that mimics the production network.Answer
  2. B
    Apply the update directly to the primary production router during peak business hours to mitigate the vulnerability immediately.
  3. C
    Remove all existing system configuration backups from the storage server to save disk space for the update file.
  4. D
    Disable all active Access Control Lists (ACLs) on the router interfaces to ensure the update downloads without packet drops.

Answer

Testing the patch in an isolated staging environment that mimics the production network is the essential first step before any live deployment.
In proper patch management lifecycles, testing patches within a non-production lab or staging environment is always the first operational requirement. This isolates bugs and validates performance before live implementation.

Step-by-Step Solution

1
Identify the standard operating procedure for patch deployment.
Recognize that patch management requires risk mitigation steps including testing, baseline backing up, and scheduled maintenance windows.
Applying untested firmware or software updates directly to live devices can lead to unexpected outages or feature breakage.
2
Evaluate the safest initial action among the available options.
Deploying the update in a controlled sandbox or staging environment allows verification of stability and compatibility without impacting users.
Staging environments mirror production hardware and configurations, ensuring unexpected behavior is resolved prior to change advisory board (CAB) final approval and production rollout.

Key Concept

Patch Staging and Pre-deployment Testing
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Topics

Patch Management and Software Maintenance

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