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CV0-004 Cloud Architecture and Design Practice Question

A company deploys a multi-region active-active application on AWS. They use Route 53 with a latency routing policy. Traffic from Europe is routed to the eu-west-1 region, but during a regional failure, some European users experience timeouts. Which routing policy should be added to improve availability?

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

Latency-based routing with health checks and failover

Combining latency with failover routing provides automatic failover to a healthy region.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • ✓

    Latency-based routing with health checks and failover

    Why this is correct

    Health checks detect failure and Route 53 can redirect to the next best region, improving availability.

  • ✗

    Geolocation routing

    Why it's wrong here

    Geolocation routes based on user location but does not provide failover to another region automatically.

  • ✗

    Failover routing

    Why it's wrong here

    Failover routing requires a primary/secondary setup and does not consider latency.

  • ✗

    Weighted routing

    Why it's wrong here

    Weighted routing distributes traffic based on weights, not automatic failover.

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