A company's web application runs on Amazon EC2 instances behind an ELB Application Load Balancer. The EC2 instances run in an EC2 Auto Scaling group across multiple Availability Zones. Data is stored in an Amazon ElastiCache for Redis cluster and an Amazon RDS DB instance. Company policy requires all system patching to take place at midnight on Tuesday. Which resources will need to have a maintenance window configured for midnight on Tuesday? (Choose two.)
A) Elastic Load Balancer
B) EC2 instances
C) RDS instance
D) ElastiCache cluster
E) Auto Scaling group

Question

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The Answer of A company's web application runs on Amazon EC2 instances behind an ELB Application Load Balancer. The EC2 instances run in an EC2 Auto Scaling group across multiple Availability Zones. Data is stored in an Amazon ElastiCache for Redis cluster and an Amazon RDS DB instance. Company policy requires all system patching to take place at midnight on Tuesday. Which resources will need to have a maintenance window configured for midnight on Tuesday? (Choose two.)
A) Elastic Load Balancer
B) EC2 instances
C) RDS instance
D) ElastiCache cluster
E) Auto Scaling group

A Company's Web Application Runs on Amazon EC2 Instances Behind