NoSQL Databases

Database management for unstructured data

Study various NoSQL databases and understand how to manage and query unstructured data for Big Data use cases.

5 minutes 5 Questions

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Big Data Engineer - NoSQL Databases Example Questions

Test your knowledge of Amazon Simple Storage Service (S3)

Question 1

Which NoSQL database is often used for real-time data streaming and processing?

Elasticsearch Apache Spark Apache Cassandra Apache Flink Apache Kafka Apache Hadoop

Correct Answer: Apache Kafka

Apache Kafka is a popular distributed streaming platform that is often used for real-time data streaming and processing. It is known for its ability to handle high volumes of incoming data and its support for real-time data processing and analysis.

Question 2

Which NoSQL database is designed to handle large amounts of unstructured data and is based on the concept of the CAP theorem?

Amazon DynamoDB Elasticsearch Google Cloud Bigtable Couchbase MongoDB Cassandra

Correct Answer: Couchbase

Couchbase is a NoSQL database that is built to handle unstructured data at scale. It uses a distributed architecture to ensure high availability and fault tolerance, which are principles of the CAP theorem. Other NoSQL databases like Cassandra, MongoDB, Amazon DynamoDB, Google Cloud Bigtable, and Elasticsearch may also handle unstructured data, but do not have the same focus on scalability and fault tolerance.

Question 3

Which NoSQL database uses a distributed file system called HDFS for storing data?

Redis Apache CouchDB Cassandra CouchDB MongoDB HBase

Correct Answer: HBase

HBase is based on the Hadoop Distributed File System (HDFS), which allows for scalable and fault-tolerant storage of large volumes of data. The other options use different storage mechanisms.

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