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SOA-C02 · Question #727

A company configures an Amazon Route 53 public hosted zone. The company wants traffic to fail over to a backup web server whenever the primary web server becomes unreachable. The company configures a

The correct answer is A. Associate the Route 53 health check with the primary server's DNS record.. Failover routing works only when the primary record is associated with a health check. Without that association, Route 53 can’t mark the primary as unhealthy and switch queries to the backup

Submitted by viktor_hu· Mar 30, 2026Reliability and Business Continuity

Question

A company configures an Amazon Route 53 public hosted zone. The company wants traffic to fail over to a backup web server whenever the primary web server becomes unreachable. The company configures a Route 53 health check for the primary web server. A connectivity issue causes the primary server to be unreachable. However, traffic does not fail over to the backup server. A SysOps administrator must resolve the failover issue. Which solution will meet this requirement?

Options

  • AAssociate the Route 53 health check with the primary server's DNS record.
  • BConfigure a Route 53 health check for the backup web server.
  • CSeta TTL of zero for the primary server's DNS record.
  • DEnsure that the backup web server is in the same AWS Region as the primary web server.

How the community answered

(24 responses)
  • A
    75% (18)
  • B
    13% (3)
  • C
    8% (2)
  • D
    4% (1)

Explanation

Failover routing works only when the primary record is associated with a health check. Without that association, Route 53 can’t mark the primary as unhealthy and switch queries to the backup

Topics

#Route 53 failover routing#health check association#DNS record#active-passive failover

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