A Company Wants to Use Amazon DynamoDB for Maintaining Metadata

question 30

Multiple Choice

A company wants to use Amazon DynamoDB for maintaining metadata on its forums. See the sample data set in the image below. A DevOps Engineer is required to define the table schema with the partition key, the sort key, the local secondary index, projected attributes, and fetch operations. The schema should support the following example searches using the least provisioned read capacity units to minimize cost. -Search within ForumName for items where the subject starts with 'a'. -Search forums within the given LastPostDateTime time frame. -Return the thread value where LastPostDateTime is within the last three months. Which schema meets the requirements?

• A) Use Subject as the primary key and ForumName as the sort key. Have LSI with LastPostDateTime as the sort key and fetch operations for thread.
• B) Use ForumName as the primary key and Subject as the sort key. Have LSI with LastPostDateTime as the sort key and the projected attribute thread.
• C) Use ForumName as the primary key and Subject as the sort key. Have LSI with Thread as the sort key and the projected attribute LastPostDateTime.
• D) Use Subject as the primary key and ForumName as the sort key. Have LSI with Thread as the sort key and fetch operations for LastPostDateTime.

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Definitions:

Barrier

An obstacle that prevents movement or access, or hinders progress towards a goal.

Effective Communication

The ability to convey information or ideas in a clear, efficient, and understandable manner to the intended audience.

Nonverbal Cues

Communication signals that are not spoken or written but are expressed through body language, facial expressions, gestures, and other physical behaviors.

Ambiguous Words

Words that have more than one interpretation, meaning, or usage, leading to uncertainty or vagueness.