Exam AWS Certified SysOps Administrator - Associate All Questions

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Exam AWS Certified SysOps Administrator - Associate topic 1 question 288 discussion

Exam question from Amazon's AWS Certified SysOps Administrator - Associate

Question #: 288
Topic #: 1

[All AWS Certified SysOps Administrator - Associate Questions]

A SysOps administrator needs to configure the Amazon Route 53 hosted zone for example.com and www.example.com to point to an Application Load Balancer (ALB).

Which combination of actions should the SysOps administrator take to meet these requirements? (Choose two.)

A. Configure an A record for example.com to point to the IP address of the ALB.
B. Configure an A record for www.example.com to point to the IP address of the ALB.
C. Configure an alias record for example.com to point to the CNAME of the ALB.
D. Configure an alias record for www.example.com to point to the Route 53 example.com record.
E. Configure a CNAME record for example.com to point to the CNAME of the ALB.

Show Suggested Answer

Suggested Answer: CD 🗳️

by Gomer at May 2, 2023, 10:35 p.m.

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jipark

10 months, 1 week ago

Selected Answer: CD

alias for root/sub domain point to ALB cname. (name for root domain not possible)

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Christina666

11 months ago

Selected Answer: BC

C. Configure an alias record for example.com to point to the CNAME of the ALB. Explanation: Amazon Route 53 supports alias records, which allow you to map your root domain (example.com) to the ALB directly without using an IP address. To do this, you would create an alias record for example.com and select the ALB's CNAME as the alias target. B. Configure an A record for www.example.com to point to the IP address of the ALB. Explanation: For the www subdomain (www.example.com), you typically use an A record to map it to an IP address. In this case, you would create an A record for www.example.com and set its value to the IP address of the ALB.

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[Removed]

11 months ago

To route domain traffic to an ELB load balancer, use Amazon Route 53 to create an alias record that points to your load balancer. An alias record is a Route 53 extension to DNS. It's similar to a CNAME record, but you can create an alias record both for the root domain, such as example.com, and for subdomains, such as www.example.com. (You can create CNAME records only for subdomains.) https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/routing-to-elb-load-balancer.html

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Christina666

11 months ago

https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/routing-to-elb-load-balancer.html

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landsamboni

1 year, 1 month ago

Selected Answer: CD

Alias to the ALB in both cases, not A record to ALB IP address.

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kondratyevmn

1 year, 1 month ago

Selected Answer: CD

:) No correct answer here, but the clothes you can lean - C, D. C, D - wrong, - there is no such a thing as IP address for ALB, as it's hidden for user and you only have an ALB DNS name, therefore it's not A&B. E - wrong, as you can't create CNAME for apex (example.com). C, D - well, you are creating record type A, not alias, but once you create record type A, you use ALB alias to route traffic to ALB endpoint (DNS).

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kondratyevmn

1 year, 1 month ago

Typo A, B - - wrong, - there is no such a thing as IP address for ALB, as it's hidden for user and you only have an ALB DNS name, therefore it's not A&B.

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Gomer

1 year, 1 month ago

Selected Answer: AD

I vote A and D because I believe you have to have an "A" record pointing to an IP for the domain name, and that the you just need an "www" alias to point to the "A" record so they both return same results to browser.

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[Removed]

11 months, 3 weeks ago

You are correct that an A record typically points to an IP address. However, in the case of an Application Load Balancer (ALB), you cannot use an A record with an IP address because the IP addresses of an ALB can change over time. Instead, you can use an alias record to point to the DNS name of the ALB. An alias record is a Route 53 extension to DNS that allows you to route traffic to selected AWS resources, such as an ALB, by using a friendly DNS name, such as example.com, instead of the resource’s IP address or DNS name. Therefore, the correct answers are CD.

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wooyourdaddy

1 year, 1 month ago

I think it is B, not A. Recently I needed to point a domain apex to an Application Load Balancer created in an AWS environment. The only problem here was that the domain apex or root domain cannot point to an Application Load Balancer’s endpoint. If we talk about in terms of DNS records, we cannot add a CNAME record against the apex. We can map an IP address to the apex as an A record. So, all we needed was a static IP address for our load balancer which we could map to our root domain and point it to the Load Balancer. The small issue was that Application Load Balancer does not have static IP addresses. So, I looked for methods to assign a static IP (elastic IP) address to the load balancer and found an AWS service named Global Accelerator which made it super-easy to assign static IP to the load balancer. Ref link: https://kavishbaghel.com/how-to-point-domain-apex-to-an-application-load-balancer-88a7b82d19e9

upvoted 1 times

wooyourdaddy

1 year, 1 month ago

Look at these questions which help to understand the answer B & B: (Questions #5 and #23)

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wooyourdaddy

1 year, 1 month ago

I meant C.

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