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?
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
Comprehensive and Detailed Explanation From Exact Extract:
Using an active-active deployment across two regions with at least two Availability Zones (AZs) each provides the highest level of fault tolerance and geographic redundancy. This ensures continuity even if an entire region or multiple zones become unavailable. In regulated sectors such as healthcare, this meets strict availability and disaster recovery requirements.
Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide — under “High Availability and Multi-Region Design”:
“Active-active configurations across multiple regions and availability zones maximize uptime and ensure failover in the event of localized or regional failures.”
Other options:
B. Active-passive introduces delays in failover.
C. Active-active in one region offers no geographic redundancy.
D. Active-passive in two regions is slower and less efficient during failover.
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