Hadoop interview questions part 2
Hadoop interview questions part 2
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Total Questions: 20
1. Amazon EMR uses Hadoop processing combined with several __________ products.
Correct Answer is : AWS
2. ___________ is an RPC framework that defines a compact binary serialization format used to persist data structures for later analysis.
Correct Answer is : Hive
3. Impala on Amazon EMR requires _________ running Hadoop 2.x or greater.
Correct Answer is : AMI
4. Impala executes SQL queries using a _________ engine.
Correct Answer is : MPP
5. Amazon EMR clusters can read and process Amazon _________ streams directly.
Correct Answer is : Kinesis
6. ___________ provides an intuitive, easy-to-use Hadoop management web UI backed by its RESTful APIs.
Correct Answer is : Ambari
7. Point out the correct statement :
Correct Answer is : Ambari provides a dashboard for monitoring health and status of the Hadoop cluster
8. Ambari leverages ________ for metrics collection.
Correct Answer is : Ganglia
9. Ambari leverages ___________ for system alerting and will send emails when your attention is needed
Correct Answer is : Nagios
10. Point out the wrong statement :
Correct Answer is : None of the mentioned
11. A ________ is a way of extending Ambari that allows 3rd parties to plug in new resource types along with the APIs
Correct Answer is : view
12. Ambari ___________ deliver a template approach to cluster deployment.
Correct Answer is : Blueprints
13. ___________ facilitates installation of Hadoop across any number of hosts.
Correct Answer is : Wizard-driven interface
14. Ambari provides a ________ API that enables integration with existing tools, such as Microsoft System Center
Correct Answer is : RESTful
15. If Ambari Agent has any output in /var/log/ambari-agent/ambari-agent.out, it is indicative of a __________ problem.
Correct Answer is : Significant
16. Mapper implementations are passed the JobConf for the job via the ________ method
Correct Answer is : JobConfigurable.configure
17. Input to the _______ is the sorted output of the mappers.
Correct Answer is : Reducer
18. The right number of reduces seems to be :
Correct Answer is : 0.95
19. Point out the wrong statement :
Correct Answer is : Reducer has 2 primary phases
20. The output of the _______ is not sorted in the Mapreduce framework for Hadoop.
Correct Answer is : None of the mentioned
