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An organization wants to move a legacy client-server application to AWS. The app responds to a particular DNS domain, myapp.com and has a 2-tier architecture - with multiple app servers and a DB server. Remote clients use TCP to connect to the app servers. The app servers need to know the IP address of the clients in order to function properly and are currently taking from the TCP socket. A multi-AZ RDS MySQL instance is used for the database. During the migration you can change the application code but you have to file a change request. How would you implement the architecture on AWS in order to maximize the scalability and high availability?
File a change request to implement Proxy Protocol support in the application. Use an ELB with a TCP Listener and Proxy protocol enabled to distribute loan on two application servers in different AZs
File a change request to implement Cross Zone support in the application. Use an ELB with a TCP Listener and Cross Zone Load Balancing enabled to distribute load on two application servers in different AZs
File a change request to implement Latency Based Routing support in the application. Use Route53 with Latency based routing to distribute load on two application servers in different AZs
File a change request to implement alias Resource support in the application. Use Route53 Alias Resource Record to distribute load on two application servers in different AZs
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Qtr No. 213, New Town Yehlanka Indore 454775
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