A SysOps Administrator Is Maintaining an Application Running on Amazon

question 125

Multiple Choice

A SysOps Administrator is maintaining an application running on Amazon EBS-backed Amazon EC2 instances in an Amazon EC2 Auto Scaling group. The application is set to automatically terminate unhealthy instances. The Administrator wants to preserve application logs from these instances for future analysis. Which action will accomplish this?

• A) Change the storage type from EBS to instance store.
• B) Configure an Amazon CloudWatch Events rule to transfer the logs to Amazon S3 upon an EC2 state change to terminated.
• C) Configure the unified CloudWatch agent to stream the logs to Amazon CloudWatch Logs.
• D) Configure VPC Flow Logs for the subnet hosting the EC2 instance.

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Definitions:

Payback Period

The timeframe required for an investment to generate cash flows sufficient to recover its initial cost.

AAR

Average Annual Return, which measures the average return on an investment over a multi-year period.

Multiple Rates Of Return

One potential problem in using the Internal Rate of Return method if more than one discount rate makes the Net Present Value of an investment zero.

Net Present Value

A process that evaluates how the worth of a dollar now compares to its worth in the future, factoring in both inflation and investment returns.