A Company Is Building a Software as a Service Application

question 43

Multiple Choice

A company is building a software as a service application. As part of the new user sign-on workflow, a Python script invokes the CreateTable operation using the Amazon DynamoDB API. After the call returns, the script attempts to call PutItem. Occasionally, the PutItem request fails with a ResourceNotFoundException error, which causes the workflow to fail. The development team has confirmed that the same table name is used in the two API calls. How should a database specialist fix this issue?

• A) Add an allow statement for the dynamodb:PutItem action in a policy attached to the role used by the application creating the table.
• B) Set the StreamEnabled property of the StreamSpecification parameter to true, then call PutItem.
• C) Change the application to call DescribeTable periodically until the TableStatus is ACTIVE, then call PutItem.
• D) Add a ConditionExpression parameter in the PutItem request.

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Definitions:

Dental Disease

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Bayesian Statistic

A statistical method that applies probability to statistical problems, focusing on the degree of belief (or subjective probability) as the basis for making statistical inferences.