AWS DynamoDB perguntas e respostas de entrevista
Pergunta 1. What is DynamoDB?
DynamoDB is a fully managed NoSQL database service provided by AWS.
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Pergunta 2. Explain the key-value model in DynamoDB.
DynamoDB uses a key-value model where each item (record) in the database is uniquely identified by a primary key.
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Pergunta 3. What are the two types of primary keys in DynamoDB?
DynamoDB supports two types of primary keys: partition key and composite key (partition key + sort key).
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Pergunta 4. What is the importance of Provisioned Throughput in DynamoDB?
Provisioned Throughput is the capacity (read and write) reserved for a table. It ensures predictable performance.
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Pergunta 5. Explain the differences between DynamoDB and traditional relational databases.
DynamoDB is a NoSQL database with a flexible schema, automatic scaling, and high availability, while traditional relational databases are SQL-based with a fixed schema.
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Mais uteis segundo os usuarios:
- What is DynamoDB?
- Explain the concept of the 'GetItem' operation in DynamoDB.
- How does DynamoDB handle transactions?