AWS Route53

Question 1

What is Route53?

Answer 1

It is an external or internal DNS service (not a server)?

Question 2

Can I use Route53 for on-prem when I have a direct connect?

Answer 2

No, the request has to come from inside AWS networking.

Question 3

What is an internal hosted zone?

Answer 3

It is a Route53 zona that can act as a DNS service for the VPC.

Question 4

I have many instances in a VPC and I want and existing already provided www.ms.com to point to a different IP, what cna I do?

Answer 4

You could set up a Route53 internal zone for ms.com, create a www A record to point to the new IP.

Question 5

Is is the Route53 Resolver used for?

Answer 5

It is a regional service that enables you to route DNS queries between on-prem and your VPC so they can be resolved by Route53. And also between your VPC and your on-prem so instances can resolve again on-prem DNS.

Question 6

How does the Route53 Resolved work?

Answer 6

It enables you to create an Inbound Endpoint that can be accessed from the on-prem network.

Question 7

When I create a Route53 Resolver, is it only deployed to a single availability zone?

Answer 7

No, the Route53 Resolver is deployed to tow subnets in two availability zones where you specify two servers to resolve again.

Question 8

What is a Route53 Resolved inbound endpoint?

Answer 8

It is an endpoint create do=in two separate availability zones that enable on-prem servers to resolve again Route 53.

Question 9

What is a Route53 Resolved outbound endpoint?

Answer 9

It is an endpoint, created in two subnets in two availability zones that enables DNS queries to be forwared to on-prem DNS server.

Question 10

I am using a Ropute53 Resolver but I want to be able to forward only some queries to on-prem, is the possible?

Answer 10

Yes, use the Route53 Resolver Forwarding rule.

Question 11

Can I access Route 53 private zone sform on-prem?

Answer 11

Yes, you can use the Route 53 Resolved to forwared queries. This used to not be the case until 2019.

Question 12

What is a Route 53 resolver?

Answer 12

It is an endpoint that is placed in a subnet in two AZs that enables open-prem to use the route53 service.

Question 13

I have an on-prem DNS server, how do I make the instance in my VPC get access to this on-prem DNS?

Answer 13

I create an outbound Route53 resolver.

Question 14

I have a VPC with two subnets, I also have a VPN connection to my on-prem, when I try to resolve the hostnames of the instance from on-prem I get the public IP, I want the private IP, what options do I have to resolve this issue?

Answer 14

I cna create an incoming Route53 resolved that will act as a proxy in by subnets, I cna ten add this DNS resolved as a DSN server on my on-prem a and set up on forwarding rules. This will enable;le the on-prem DNS server t use the resolver to get the information.

Question 15

Are Route53 resolvers highly available?

Answer 15

Yes, when you create one you will be asked to select two subnets in two separate availability zones.

Question 16

I wnat to log all queries to my public Route53 DNS server, how can I architect this?

Answer 16

You can set up Route53 to send its DNS queries to CloudWatch logs.

Question 17

I need to register a domain, how can I do this in AWS?

Answer 17

You can use Route53 to register a domain.

Question 18

What is the difference between a public and private hosted zone?

Answer 18

• The private hosted zone has an endpoint in your VPC

- The public hosted zone has an endpoint that is on th internet.

Question 19

What is a recordset?

Answer 19

It is a subdomain entry that holds a pointer t the iP for example.

Question 20

What is a quad-A record?

Answer 20

It is an ipv6 A record.

Question 21

What is an alias record in Route53?

Answer 21

It is an A record that points at an AWS service if the service IP updates it will be updated in Route53.