CompTIA DataX (CNX-001) — Question 63

A cloud architect must recommend an architecture approach for a new medical application that requires the lowest downtime possible. Which of the following is the best application deployment strategy given the high-availability requirement?

Answer options

• A. Two different availability zones (per region) using an active-active topology in two different regions
• B. Four different availability zones using an active-passive topology in a single region
• C. Four different availability zones using an active-active topology in a single region
• D. Two different availability zones (per region) using an active-passive topology in two different regions

Correct answer: A

Explanation

The best answer is A, as using an active-active topology across two regions with two availability zones maximizes uptime by allowing traffic to be distributed and handled by multiple instances. Option B and C do not provide the same level of redundancy across regions, which can lead to potential downtime in case of a regional failure. Option D employs an active-passive strategy, which does not provide the same level of continuous availability as active-active configurations.