Quiz Challenge 3 Flashcards

1
Q

You have purchased “mycoolcompany.com” on the AWS registrar and would like for it to point to lb1-1234.us-east-2.elb.amazonaws.com . What sort of Route 53 record is NOT POSSIBLE to set up for this?

A

The DNS protocol does not allow you to create a CNAME record for the top node of a DNS namespace (mycoolcompany.com), also known as the zone apex

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2
Q

You have deployed a new Elastic Beanstalk environment and would like to direct 5% of your production traffic to this new environment, in order to monitor for CloudWatch metrics and ensuring no bugs exist. What type of Route 53 records allows you to do so?

A

Weighted allows you to redirect a part of the traffic based on a weight (hence a percentage).

  • It’s common to use to send a part of a traffic to a new application you’re deploying
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3
Q

After updating a Route 53 record to point “myapp.mydomain.com” from an old Load Balancer to a new load balancer, it looks like the users are still not redirected to your new load balancer. You are wondering why…

A

It’s because of TTL

  • DNS records have a TTL (Time to Live) in order for clients to know for how long to caches these values and not overload the DNS with DNS requests.
  • TTL should be set to strike a balance between how long the value should be cached vs how much pressure should go on the DNS.
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4
Q

You want your users to get the best possible user experience and that means minimizing the response time from your servers to your users. Which routing policy will help?

A

Latency will evaluate the latency results and help your users get a DNS response that will minimize their latency (e.g. response time)

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5
Q

You have a legal requirement that people in any country but France should not be able to access your website. Which Route 53 record helps you in achieving this?

A

Geolocation

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6
Q

You have purchased a domain on Godaddy and would like to use it with Route 53. What do you need to change to make this work?

A

Create a public hosted zone and update the 3rd party registrar NS records.

  • Private hosted zones are meant to be used for internal network queries and are not publicly accessible.
  • Public Hosted Zones are meant to be used for people requesting your website through the public internet.
  • Finally, NS records must be updated on the 3rd party registrar.
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