Hadoop interview questions part 11
Hadoop interview questions part 11
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Total Questions: 20
1. ____________ is used when you want the sink to be the input source for another operation.
Correct Answer is : Agent Tier Event –
2. ___________ is where you would land a flow (or possibly multiple flows joined together) into an HDFS-formatted file system.
Correct Answer is : Collector Tier Event
3. ____________ sink can be a text file, the console display, a simple HDFS path, or a null bucket where the data is simply deleted.
Correct Answer is : Basic
4. Flume deploys as one or more agents, each contained within its own instance of :
Correct Answer is : JVM
5. _________ is the name of the archive you would like to create.
Correct Answer is : archiveName
6. Point out the correct statement :
Correct Answer is : All of the mentioned
7. Using Hadoop Archives in __________ is as easy as specifying a different input filesystem than the default file system.
Correct Answer is : MapReduce
8. The __________ guarantees that excess resources taken from a queue will be restored to it within N minutes of its need for them.
Correct Answer is : scheduler
9. Point out the wrong statement :
Correct Answer is : None of the mentioned
10. _________ is a pluggable Map/Reduce scheduler for Hadoop which provides a way to share large clusters.
Correct Answer is : Capacity Scheduler
11. Which of the following parameter describes destination directory which would contain the archive ?
Correct Answer is :
12. _________ identifies filesystem path names which work as usual with regular expressions.
Correct Answer is : none of the mentioned
13. __________ is the parent argument used to specify the relative path to which the files should be archived to
Correct Answer is : -p
14. Mapper implementations are passed the JobConf for the job via the ________ method
Correct Answer is : JobConfigurable.configure
15. Input to the _______ is the sorted output of the mappers.
Correct Answer is : Reducer
16. The right number of reduces seems to be :
Correct Answer is : 0.95
17. Point out the wrong statement :
Correct Answer is : Reducer has 2 primary phases
18. The output of the _______ is not sorted in the Mapreduce framework for Hadoop.
Correct Answer is : None of the mentioned
19. Which of the following phases occur simultaneously ?
Correct Answer is : Shuffle and Sort
20. Mapper and Reducer implementations can use the ________ to report progress or just indicate that they are alive.
Correct Answer is : Reporter
