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Question

Difficulty: MediumPatch Management and Software Maintenance

An organization plans to update the firmware on its primary network security appliances during an upcoming maintenance window. To ensure system operations can be restored promptly if the new firmware encounters a critical fault, which of the following actions should be completed immediately before starting the installation?

  1. Create and verify a full configuration backup and system state snapshot of the active appliances.Answer
  2. B
    Push the firmware image simultaneously to all primary and secondary redundant appliances to minimize overall downtime.
  3. C
    Perform an incremental restore of previous system settings over the live device while the installation process runs.
  4. D
    Temporarily downgrade management logging protocols from SNMPv3 to SNMPv1 to reduce CPU overhead during the reboot.

Answer

Create and verify a full configuration backup and system state snapshot of the active appliances.
In standard network patch management procedures, creating and validating a full configuration backup and system state snapshot prior to applying firmware updates is mandatory. This establishes an authoritative baseline and guarantees that administrators can execute a rollback plan if the patch causes instability.

Step-by-Step Solution

1
Identify the risk mitigation requirement for software updates.
Recognize that firmware upgrades carry a risk of device instability or rollback necessity.
Standard patch management lifecycles require a verified rollback mechanism prior to change execution.
2
Evaluate the safest pre-deployment task.
Generating a validated configuration backup and state snapshot provides a known-good restore point.
Verification confirms the backup is non-corrupt and usable if a restore is needed.

Key Concept

Pre-Patch Baseline and Rollback Preparedness
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Topics

Patch Management and Software Maintenance

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