Hadoop Questions and Answers Hadoop Archives Posted by Superadmin on December 09 2015 16:38:33This set of Hadoop Multiple Choice Questions & Answers (MCQs) focuses on “Hadoop Archives”.
1. _________ is the name of the archive you would like to create.
a) archive
b) archiveName
c) Name
d) None of the mentioned
2. Point out the correct statement :
a) A Hadoop archive maps to a file system directory
b) Hadoop archives are special format archives
c) A Hadoop archive always has a *.har extension
d) All of the mentioned
3. Using Hadoop Archives in __________ is as easy as specifying a different input filesystem than the default file system.
a) Hive
b) Pig
c) MapReduce
d) All of the mentioned
4. The __________ guarantees that excess resources taken from a queue will be restored to it within N minutes of its need for them.
a) capacitor
b) scheduler
c) datanode
d) None of the mentioned
5. Point out the wrong statement :
a) The Hadoop archive exposes itself as a file system layer
b) Hadoop archives are immutable
c) Archive rename’s, deletes and creates return an error
d) None of the mentioned
6. _________ is a pluggable Map/Reduce scheduler for Hadoop which provides a way to share large clusters.
a) Flow Scheduler
b) Data Scheduler
c) Capacity Scheduler
d) None of the mentioned
7. Which of the following parameter describes destination directory which would contain the archive ?
a) -archiveName
b)
c)
d) None of the mentioned
8. _________ identifies filesystem pathnames which work as usual with regular expressions.
a) -archiveName
b)
c)
d) None of the mentioned
9. __________ is the parent argument used to specify the relative path to which the files should be archived to
a) -archiveName
b) -p
c)
d)
10. Which of the following is a valid syntax for hadoop archive ?
a)
hadooparchive [ Generic Options ] archive
-archiveName
[-p ]
b)
hadooparch [ Generic Options ] archive
-archiveName
[-p ]
c)
hadoop [ Generic Options ] archive
-archiveName
[-p ]
d) None of the mentioned