A Mobile Application Running on Eight Amazon EC2 Instances Is

question 473

Multiple Choice

A mobile application running on eight Amazon EC2 instances is relying on a third-party API endpoint. The third-party service has a high failure rate because of limited capacity, which is expected to be resolved in a few weeks. In the meantime, the mobile application developers have added a retry mechanism and are logging failed API requests. A DevOps Engineer must automate the monitoring of application logs and count the specific error messages; if there are more than 10 errors within a 1-minute window, the system must issue an alert. How can the requirements be met with MINIMAL management overhead?

• A) Install the Amazon CloudWatch Logs agent on all instances to push the application logs to CloudWatch Logs. Use metric filters to count the error messages every minute, and trigger a CloudWatch alarm if the count exceeds 10 errors.
• B) Install the Amazon CloudWatch Logs agent on all instances to push the access logs to CloudWatch Logs. Create a CloudWatch Events rule to count the error messages every minute, and trigger a CloudWatch alarm if the count exceeds 10 errors.
• C) Install the Amazon CloudWatch Logs agent on all instances to push the application logs to CloudWatch Logs. Use a metric filter to generate a custom CloudWatch metric that records the number of failures and triggers a CloudWatch alarm if the custom metric reaches 10 errors in a 1-minute period.
• D) Deploy a custom script on all instances to check application logs regularly in a cron job. Count the number of error messages every minute, and push a data point to a custom. CloudWatch metric. Trigger a CloudWatch alarm if the custom metric reaches 10 errors in a 1-minute period.

Analyze the effects of the Reconstruction policies on different socio-economic groups in the South.

Evaluate the impact and failure of Andrew Johnson's Reconstruction plan.

Understand the significance and outcomes of Andrew Johnson's impeachment.

Assess the achievements and limitations of Reconstruction policy reforms.

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Definitions:

Initiating Structure

Leadership behavior characterized by clearly defining roles, setting goals, and establishing well-defined patterns of organization and communication.

Leadership Behavior

The actions, decisions, and mannerisms exhibited by a leader, influencing how they guide, motivate, and manage teams.

Autocratic Leader

A person in charge who retains most of the authority.

Morally Right

Actions or behaviors that are considered justifiable and ethical according to societal or personal standards of conduct.