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Home / Interview Subjects / AWS DynamoDB
WithoutBook LIVE Mock Interviews AWS DynamoDB Related interview subjects: 24

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Know the top AWS DynamoDB interview questions and answers for freshers and experienced candidates to prepare for job interviews.

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Ques 3

Explain the concept of DynamoDB Local.

DynamoDB Local is a downloadable version of DynamoDB that enables local development and testing. It allows developers to test applications without incurring AWS costs.
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Ques 4

What is the purpose of the 'DeleteItem' operation in DynamoDB?

The 'DeleteItem' operation removes one or more items from a table based on their primary key. It is used to delete specific items from a table.
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Ques 5

What is the purpose of the 'CreateTable' operation in DynamoDB?

The 'CreateTable' operation is used to create a new table in DynamoDB. It involves specifying the table name, primary key attributes, and provisioned throughput settings.
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Ques 6

What is the purpose of the 'DescribeTable' operation in DynamoDB?

The 'DescribeTable' operation provides metadata about a table, including its schema, provisioned throughput settings, and the status of any secondary indexes.
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Ques 7

Explain the concept of Capacity Units in DynamoDB.

Capacity Units represent the throughput that a table can handle. Read Capacity Units (RCUs) and Write Capacity Units (WCUs) determine the amount of read and write operations a table can support.
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Ques 8

What is the purpose of the 'ListTables' operation in DynamoDB?

'ListTables' provides a list of all the tables in a given AWS account and region. It does not require the use of the table's primary key.
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Ques 9

Explain the concept of the 'PutItem' operation in DynamoDB.

'PutItem' creates a new item or replaces an existing item with a new one. It adds an item to the table if it does not exist, or replaces the existing item if it does.
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