A Company Is Running a Serverless Application on AWS Lambda

question 19

Multiple Choice

A company is running a serverless application on AWS Lambda. The application stores data in an Amazon RDS for MySQL DB instance. Usage has steadily increased, and recently there have been numerous "too many connections" errors when the Lambda function attempts to connect to the database. The company already has configured the database to use the maximum max_connections value that is possible. What should a SysOps administrator do to resolve these errors?

• A) Create a read replica of the database. Use Amazon Route 53 to create a weighted DNS record that contains both databases.
• B) Use Amazon RDS Proxy to create a proxy. Update the connection string in the Lambda function.
• C) Increase the value in the max_connect_errors parameter in the parameter group that the database uses.
• D) Update the Lambda function's reserved concurrency to a higher value.

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Definitions:

Constant Minimum

The smallest or least value that remains unchanged in a given situation or mathematical function.

Intensity

The degree of strength, force, or energy in a given phenomenon or activity, often used to describe sensations, emotions, or physical exertions.

Perceptual Set

A tendency to perceive or notice some aspects of the available sensory data and ignore others, influenced by expectations, culture, emotions, and other psychological factors.

Top-Down

Top-Down processing refers to a cognitive approach where perception starts with the formulation of a high-level concept, and then works down to the finer details.