A new vendor product has been acquired to replace a legacy perimeter security product. There are significant time constraints due to the existing solution nearing end-of-life with no options for…

Question

Options

• AInstall the new solution, migrate to the new solution, and test the new solution.
• BPurchase the new solution, test the new solution, and migrate to the new solution.
• CDecommission the old solution, install the new solution, and test the new solution.
• DTest the new solution, migrate to the new solution, and decommission the old solution.

• A
  3% (2)
• B
  7% (4)
• C
  13% (8)
• D
  77% (46)

Explanation

With time pressure and an end-of-life legacy solution, continuity of security coverage is critical. Option D (Test → Migrate → Decommission) is correct because: testing first validates the new solution works before it is relied upon; migrating while the old system is still technically present ensures no gap in protection; and decommissioning last means the old system provides a fallback during migration. Option A (Install → Migrate → Test) tests after migration - risky because you have already cut over before validating. Option B skips decommissioning entirely. Option C decommissions first, creating a dangerous window with no perimeter protection before the new solution is installed and tested. D preserves security posture throughout the transition.

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