1Z0-1072-25 Question 118
Single answerYou have a high-availability web application deployed in two OCI regions. Region A is the primary site, and Region B is the backup. You want to ensure that DNS automatically sends traffic to Region A under normal conditions, but switches to Region B if Region A becomes unavailable. Which configuration step is required to enable automatic failover using OCI� traffic management?
- A
Create an OCI health check for Region A� endpoint and associate it with a failover steering policy in DNS
- B
Use geolocation steering to always direct traffic to the region geographically closest to the user
- C
Configure a weighted steering policy with equal weight for Region A and Region B
- D
Enable Cross-Region Copy in the DNS zone to synchronize records between Region A and Region B
Show answer and explanation
Correct answer: A
Explanation
To configure automatic failover, you must set up a failover steering policy and link it to an OCI health check for each region� endpoint. The service monitors endpoint health and reroutes traffic if the primary endpoint fails. Refer to Oracle Cloud Infrastructure DNS Traffic Management documentation for detailed setup steps: https://docs.oracle.com/en-us/iaas/Content/DNS/Reference/trafficmanagement.htm
- A. Correct.
Option 1 is correct. Associating a health check with a failover steering policy ensures traffic is routed to Region B only if Region A is detected as unhealthy. OCI� Traffic Management service uses these health-check results to switch traffic automatically.
- B. Incorrect.
Option 2 is incorrect. Geolocation steering directs traffic based on user location, not health. This wouldn't automatically fail over if Region A becomes unavailable.
- C. Incorrect.
Option 3 is incorrect. Weighted steering splits traffic by the assigned weights but does not handle failover based on endpoint status. It doesn�t monitor endpoint health.
- D. Incorrect.
Option 4 is incorrect. Cross-Region Copy addresses data replication or backup, but does not manage DNS-based traffic failover. It doesn�t incorporate health checks for endpoints.