1. What is Amazon Route 53?
Amazon Route 53 is a scalable and highly available Domain Name System (DNS) web service that helps route end-user requests to AWS resources or external endpoints.
2. What is DNS?
DNS (Domain Name System) is a system that translates human-readable domain names into IP addresses, allowing computers to locate resources on the internet.
3. How does Amazon Route 53 work?
Amazon Route 53 manages the DNS records for your domain, allowing you to associate domain names with resources such as EC2 instances, S3 buckets, and load balancers.
4. What are the types of routing policies in Amazon Route 53?
Amazon Route 53 offers several routing policies, including Simple, Weighted, Latency, Failover, Geolocation, and Multi-Value.
5. What is the purpose of the Simple routing policy in Route 53?
The Simple routing policy directs traffic to a single resource, such as an IP address or an Amazon S3 bucket, without any logic or decision-making.
6. How does the Weighted routing policy work in Route 53?
The Weighted routing policy allows you to distribute traffic across multiple resources based on assigned weights. You can control the distribution of traffic based on proportions.
7. What is the Latency routing policy in Amazon Route 53?
The Latency routing policy directs traffic to the AWS region with the lowest latency for a given user, improving the user experience by minimizing response times.
8. How does the Failover routing policy work?
The Failover routing policy directs traffic to a primary resource and fails over to a secondary resource if the primary resource becomes unavailable.
9. What is the Geolocation routing policy?
The Geolocation routing policy directs traffic based on the geographic location of the user, allowing you to route users to the nearest or most appropriate resource.
10. What is the Multi-Value routing policy?
The Multi-Value routing policy allows you to associate multiple resources with a single DNS name and return multiple IP addresses in a random or weighted manner.
11. How can you route traffic to an AWS resource using Route 53?
To route traffic to an AWS resource, you create DNS records, such as A records for IPv4 addresses and Alias records for AWS resources like ELB, S3, and CloudFront distributions.
12. Can Route 53 route traffic to non-AWS resources?
Yes, Route 53 can route traffic to resources outside of AWS by using the simple routing policy to direct traffic to IP addresses or domain names.
13. How can you ensure high availability using Route 53?
Route 53 provides health checks to monitor the health of resources and can automatically fail over to healthy resources in case of failures.
14. What are health checks in Amazon Route 53?
Health checks in Route 53 monitor the health and availability of your resources by periodically sending requests and verifying the responses.
15. How can you configure a custom domain for an Amazon S3 bucket using Route 53?
You can create an Alias record in Route 53 that points to the static website hosting endpoint of the S3 bucket, allowing you to use a custom domain for your S3 bucket.
16. What is a DNS alias record?
An alias record is a Route 53-specific DNS record that allows you to route traffic directly to an AWS resource, such as an ELB, CloudFront distribution, or S3 bucket.
17. How can you migrate a domain to Amazon Route 53?
To migrate a domain to Route 53, you update your domain's DNS settings to use Route 53's name servers and then recreate your DNS records within the Route 53 console.
18. How does Route 53 support domain registration?
Route 53 allows you to register new domain names, manage existing domain names, and associate them with resources and services within your AWS account.
19. How can you use Route 53 to set up a global website?
You can use the Geolocation routing policy to route users to different resources based on their geographic location, creating a global website with reduced latency.
20. What is Route 53 Resolver?
Route 53 Resolver is a service that provides DNS resolution across Amazon VPCs and on-premises networks, enabling hybrid network configurations.