A company has a microservice that runs on a set of Amazon EC2 instances. The EC2 instances run behind an Application Load Balancer (ALB). A SysOps administrator must use Amazon Route 53 to create a…

The correct answer is C. An alias record. A Route 53 alias record lets you map a zone-apex name like example.com to an ALB DNS name. It behaves like an A/AAAA record, avoids the CNAME-at-apex restriction, and stays in sync with the ALB’s IPs automatically.

Submitted by cyberguy42· Mar 30, 2026Networking and Content Delivery

Question

A company has a microservice that runs on a set of Amazon EC2 instances. The EC2 instances run behind an Application Load Balancer (ALB). A SysOps administrator must use Amazon Route 53 to create a record that maps the ALB URL to example.com. Which type of record will meet this requirement?

Options

AAn A record
BAn AAAA record
CAn alias record
DA CNAME record

How the community answered

(23 responses)

A
4% (1)
B
17% (4)
C
74% (17)
D
4% (1)

Explanation

A Route 53 alias record lets you map a zone-apex name like example.com to an ALB DNS name. It behaves like an A/AAAA record, avoids the CNAME-at-apex restriction, and stays in sync with the ALB’s IPs automatically.

Topics

#Route 53 alias record#ALB DNS mapping#apex domain#DNS record types

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