Cassandra MCQ Questions And Answers

Cassandra MCQs : This section focuses on "Basics" of Cassandra. These Multiple Choice Questions (MCQ) should be practiced to improve the Cassandra skills required for various interviews (campus interviews, walk-in interviews, company interviews), placements, entrance exams and other competitive examinations.

1. Which of the following is true about Apache Cassandra?

A. Apache Cassandra is a free and open-source
B. Apache Cassandra is a distributed
C. Apache Cassandra has wide column store
D. All of the above

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2. Cassendra is a?

A. Centralised database
B. End-user database
C. NoSQL database
D. Relational database

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3. Cassendra Initial release?

A. 2008
B. 2009
C. 2010
D. 2011

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4. Programming language used in cassendra?

A. C
B. Java
C. C++
D. .Net

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5. By default, Cassandra uses __________ for cluster communication.

A. 3000
B. 5000
C. 7000
D. 9000

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6. Which of the following are Features of Cassandra?

A. Elastic scalability
B. Flexible data storage
C. Easy data distribution
D. All of the above

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7. Cassandra was developed at?

A. IBM
B. Facebook
C. Google
D. Oracle

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8. Cassandra uses the ________ in the background to allow the nodes to communicate with each other and detect any faulty nodes in the cluster.

A. Gossip Protocol
B. Commit Protocol
C. Mem Protocol
D. Talk Protocol

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9. Which of them is a place where data is stored?

A. Data center
B. SSTable
C. Bloom filter
D. Node

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10. Which of them is a memory-resident data structure?

A. Data center
B. SSTable
C. Mem-table
D. Bloom filter

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11. CQL stands for?

A. Cassandra Query Language
B. Cluster Query Language
C. Commit Query Language
D. Component Query Language

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12. ____________ is the outermost container for data in Cassandra.

A. replication
B. Keyspace
C. network
D. topology

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13. A __________ is a special column, therefore, it is also a key-value pair, but it stores a map of sub-columns.

A. sub column
B. key column
C. super column
D. column

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14. Which of the following is a unit of replication in Cassandra?

A. Row
B. Column
C. Both A and B
D. None of the above

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15. Which method used to close the cluster instance?

A. close()
B. void close()
C. data close()
D. cassendra close()

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16. Cassandra deals with structured data.

A. TRUE
B. FALSE
C. Can be true or false
D. Can not say

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17. Cassandra has peer-to-peer distributed system across its nodes.

A. TRUE
B. FALSE
C. Can be true or false
D. Can not say

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18. Which of the following is the command to run the queries in CQLSH.

A. execute query()
B. run()
C. execute()
D. run query()

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19. Which method builds the cluster with the given contact points?

A. ResultSet execute()
B. Session connect()
C. Cluster build()
D. Cluster.Builder addContactPoint()

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20. CRUD stands for ____.

A. Create Read Update Delete
B. Change Return Upload Download
C. Both A and B
D. Create Read Update Drop

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