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-# Route53
+Here is a quick recap of AWS Route 53 based on the sources, presented point-wise for your interview preparation:
+
+*   **What is Route 53?** AWS provides **DNS (Domain Name System) as a service** through Route 53. Think of it like AWS providing compute as a service (EC2) or Kubernetes as a service (EKS).
+*   **What is DNS?** DNS stands for Domain Name System. Its primary function is to **map human-readable domain names (like amazon.com or flipkart.com) to computer-readable IP addresses**.
+*   **Why is DNS needed?**
+    *   **Ease of use:** Domain names are much **easier for people to remember** than complex IP addresses like `3.6.10.171`.
+    *   **Flexibility:** IP addresses can **change** (they can be dynamic). Using a domain name provides a stable address even if the underlying IP address changes.
+*   **How DNS works (Simply put):** A DNS service **keeps records** that map a domain name to its corresponding IP address.
+*   **How Route 53 fits into AWS architecture:**
+    *   In a typical setup (like applications in a private subnet behind a load balancer in a public subnet), when a user tries to access an application using its domain name (e.g., amazon.com), **Route 53 is the first service to intercept the request**.
+    *   Route 53 looks up the domain name in its records to find the associated IP address, usually the **IP address of a load balancer**.
+    *   Once the domain name is resolved to the IP address, the request is **forwarded to the load balancer** (and then typically to the application instances).
+*   **Key Components/Features of Route 53:**
+    *   **Domain Registration:** You can **register (buy) domain names directly through AWS Route 53**. You can also integrate domain names purchased from other registrars (like GoDaddy).
+    *   **Hosted Zones:** This is a critical concept in Route 53. **Hosted zones contain the DNS records** for a specific domain name. When Route 53 receives a request for a domain name, it looks for the DNS records in the relevant hosted zone (which can be public or private) to resolve the domain name to an IP address.
+    *   **DNS Records:** These are the actual mappings within a hosted zone that **link a domain name or subdomain to an IP address** or other destination.
+    *   **Health Checks:** Route 53 can **monitor the health of your web applications or web servers** (e.g., checking if they are active every minute or five minutes). It can use this information to determine where to forward requests, potentially performing some kind of balancing across healthy servers.
+
+Route 53 simplifies the complex process of managing DNS, especially when hosting applications on AWS.# Route53
 
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