Mapr (HP) Hadoop Developer Certification Questions and Answers (Dumps and Practice Questions)

Question : In YARN which component monitors the progress of the task.


1. Resource Manager

2. Application Manager

3. Node Manager

4. JobTracker

Correct Answer : 2
Explanation:




Question : Select the correct Job Monitoring options in YARN


1. JobTracker web UI

2. MapR matrics database

3. History Server UIs

4. hadoop job command

Correct Answer : 3
Explanation:




Question : Which of the following is reported using Heartbeat from TaskTracker to JobTracker in MRv


1. Complete status of how many Key values are being processed.

2. If there is any error in shuffle process

3. It will report the status of MapTask or ReduceTask

4. Available RAM on each node

5. Available CPUs on each node

Correct Answer : 3
Explanation:

Related Questions

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Question : During streaming job submission, you want to set environment variable as EXAMPLE_DIR=/home/example/dictionaries/. Which is correct option.


1. -env EXAMPLE_DIR=/home/example/dictionaries/

2. -e EXAMPLE_DIR=/home/example/dictionaries/

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4. -sysenv EXAMPLE_DIR=/home/example/dictionaries/

5. -cmdenv EXAMPLE_DIR=/home/example/dictionaries/


Question : Which daemons is considered as master


1. NameNode
2. Secondary NameNode
3. Access Mostly Uused Products by 50000+ Subscribers
4. 1,2 and 3 are correct
5. 1 and 3 are correct




Question : Which node is considered as slave nodes


1. Secondary NameNode
2. DataNode
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4. 1,2 and 3 are correct
5. 2 and 3 are correct





Question : Which daemon stores the file data blocks ?


1. NameNode
2. TaskTracker
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4. Secondary Data Node




Question : When a client submits a Job, its configuration information is packaged into XML file


1. True
2. False




Question : TaskTracker can not start multiple task in the same node


1. True
2. False