Hadoop HBase MCQs

This section focuses on "HBase" 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. which of the following is correct statement?

A. HBase is a distributed column-oriented database
B. Hbase is not open source
C. Hbase is horizontally scalable.
D. Both A and C

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2. which of the following is not a feature of Hbase?

A. HBase is lateral scalable.
B. It has automatic failure support.
C. It provides consistent read and writes.
D. It has easy java API for client.

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3. When did HBase was first released?

A. April 2007
B. March 2007
C. February 2007
D. May 2007

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4. Apache HBase is a non-relational database modeled after Google's _________

A. BigTop
B. Bigtable
C. Scanner
D. FoundationDB

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5. HBaseAdmin and ____________ are the two important classes in this package that provide DDL functionalities.

A. HTableDescriptor
B. HDescriptor
C. HTable
D. HTabDescriptor

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6. which of the following is correct statement?

A. HBase provides fast lookups for larger tables.
B. It provides low latency access to single rows from billions of records
C. HBase is a database built on top of the HDFS.
D. All of the above

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7. HBase supports a ____________ interface via Put and Result.

A. bytes-in/bytes-out
B. bytes-in
C. bytes-out
D. None of the above

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8. Which command is used to disable all the tables matching the given regex?

A. remove all
B. drop all
C. disable_all
D. None of the above

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9. _________ is the main configuration file of HBase.

A. hbase.xml
B. hbase-site.xml
C. hbase-site-conf.xml
D. hbase-conf.xml

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10. which of the following is incorrect statement?

A. HBase is built for wide tables
B. Transactions are there in HBase.
C. HBase has de-normalized data.
D. HBase is good for semi-structured as well as structured data.

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