Question 1mediummulti select
Full question →mediummulti selectObjective-mapped
A SaaS application is deployed in us-east-1 and us-west-2 behind separate ALBs. The business wants DNS to send new clients to the primary Region when it is healthy and automatically fail over to the secondary Region when the primary endpoint is unhealthy. Which two Route 53 settings are required? Select two.
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Best answer
Use a failover routing policy with a primary and secondary record.
Failover routing is designed specifically to send traffic to a secondary endpoint when the primary becomes unhealthy.
B
Best answer
Create a health check and associate it with the primary endpoint.
Health checks give Route 53 the signal it needs to decide when the primary endpoint should stop receiving answers.
C
Distractor review
Use weighted routing with a 50/50 traffic split between both Regions.
Weighted routing distributes traffic, but it does not automatically fail over based on endpoint health.
D
Distractor review
Use latency-based routing so clients always choose the fastest Region.
Latency-based routing optimizes performance, but it is not the same as primary-secondary failover behavior.
E
Distractor review
Use a geolocation policy without health checks.
Geolocation routes by user location and still requires additional health-aware design for automatic failover.
Common exam trap
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Technical deep dive
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
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FAQ
Questions learners often ask
What does this SAA-C03 question test?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: Use a failover routing policy with a primary and secondary record. — Route 53 failover routing is the DNS pattern that matches a primary Region with a standby secondary Region. A health check attached to the primary endpoint tells Route 53 when to stop returning the primary record and switch DNS answers to the secondary one. This combination provides automatic DNS-based failover without manual record changes during an outage. Why others are wrong: Weighted routing spreads traffic rather than providing a primary-secondary failover relationship. Latency-based routing optimizes for the closest or fastest endpoint, not for disaster recovery. Geolocation routing is location aware, but by itself it does not satisfy the health-based failover requirement described in the stem.
What should I do if I get this SAA-C03 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
Discussion
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