Hadoop HDFS MCQs

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

1. What is full form of HDFS?

A. Hadoop File System
B. Hadoop Field System
C. Hadoop File Search
D. Hadoop Field search

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2. HDFS works in a __________ fashion.

A. worker-master fashion
B. master-slave fashion
C. master-worker fashion
D. slave-master fashion

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3. Which of the following are the Goals of HDFS?

A. Fault detection and recovery
B. Huge datasets
C. Hardware at data
D. All of the above

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4. ________ NameNode is used when the Primary NameNode goes down.

A. Rack
B. Data
C. Secondary
D. Both A and B

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5. The minimum amount of data that HDFS can read or write is called a _____________.

A. Datanode
B. Namenode
C. Block
D. None of the above

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6. The default block size is ______.

A. 32MB
B. 64MB
C. 128MB
D. 16MB

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7. For every node (Commodity hardware/System) in a cluster, there will be a _________.

A. Datanode
B. Namenode
C. Block
D. None of the above

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8. Which of the following is not Features Of HDFS?

A. It is suitable for the distributed storage and processing.
B. Streaming access to file system data.
C. HDFS provides file permissions and authentication.
D. Hadoop does not provides a command interface to interact with HDFS.

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9. HDFS is implemented in _____________ language.

A. Perl
B. Python
C. Java
D. C

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10. During start up, the ___________ loads the file system state from the fsimage and the edits log file.

A. Datanode
B. Namenode
C. Block
D. ActionNode

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