Your Application Uses Amazon SQS and Auto Scaling to Process

question 163

Multiple Choice

Your application uses Amazon SQS and Auto Scaling to process background jobs. The Auto Scaling policy is based on the number of messages in the queue, with a maximum Instance count of 100. Since the application was launched, the group has never scaled above 50. The Auto Scaling group has now scaled to 100, the queue size is increasing, and very few Jobs are being completed. The number of messages being sent to the queue is at normal levels. What should you do to identify why the queue size is unusually high, and to reduce it?

• A) Temporarily increase the Auto Scaling group's desired value to 200. When the queue size has been reduced, reduce it to 50.
• B) Analyze the application logs to identify possible reasons for message processing failure and resolve the cause for failures.
• C) Create additional Auto Scaling groups, enabling the processing of the queue to be performed in parallel.
• D) Analyze CloudTrail logs for Amazon SQS to ensure that the instances' Amazon EC2 role has permission to receive messages from the queue.

Distinguish between various types of memory and storage and understand their importance in computer operations.

Explain the concept of data and its various forms in a digital context.

Understand the basics of networking and internet connectivity options.

Comprehend the principles of energy efficiency and power management in computing devices.

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Definitions:

Interposition

A monocular cue to distance that relies on the fact that objects farther away are blocked from view by closer objects.

Mona Lisa

A renowned portrait painting by Leonardo da Vinci, widely recognized for its enigmatic expression, housed in the Louvre Museum in Paris.

Depth Cue

Visual information that helps perceive the distance or three-dimensionality of an object or scene.

Binocular Disparity

The difference in images between the two eyes, which allows for depth perception.