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Cloudera Hadoop Administrator Certification Certification Questions and Answer (Dumps and Practice Questions)



Question : Which statement is true about apache Hadoop ?


: Which statement is true about apache Hadoop ?
1. HDFS performs best with a modest number of large files
2. No Randome Writes is alowed to the file
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4. All of the above

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Question : Which statement is true about the storing files in HDFS


: Which statement is true about the storing files in HDFS
1. Files are split in the block
2. All the blocks of the files should remain on same macine
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4. All of the above
5. 1 and 3 are correct

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Question : Select the correct statement for the NameNode ?

: Select the correct statement for the NameNode ?
1. NameNode daemon must be running at all the times
2. NameNode holds all its metadata in RAM for fast access.
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4. 1,2 and 3 are correct
5. 1 and 2 are correct



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Related Questions

Question : Table schemas in Hive are:


 : Table schemas in Hive are:
1. Stored as metadata on the NameNode
2. Stored along with the data in HDFS
3. Stored in the Metadata
4. Stored in ZooKeeper
5. Stored in Hive Metastore


Question : __________ are responsible for local monitoring of resource availability, fault reporting,
and container life-cycle management (e.g., starting and killing
jobs).


 : __________ are responsible for local monitoring of resource availability, fault reporting,
1. NodeManagers
2. Application Manager
3. Application Master
4. Resource Manager


Question : Typically, an ApplicationMaster will need to harness the processing power of multiple servers to complete a job. In which of the following order this
can be accomplished.

1. ApplicationMaster issues resource requests to the ResourceManager
2. ResourceManager generates a lease for the resource, which is acquired by a subsequent ApplicationMaster heartbeat
3. The ResourceManager will attempt to satisfy the resource requests coming from each application according to availability and scheduling policies.
4. A token-based security mechanism guarantees its authenticity when the ApplicationMaster presents the container lease to the NodeManager

 : Typically, an ApplicationMaster will need to harness the processing power of multiple servers to complete a job. In which of the following order this
1. 1,2,3,4
2. 1,3,4,2
3. 1,3,2,4
4. 1,4,3,2


Question : Suppose cluster resources become scarce and the scheduler ..


 : Suppose cluster resources become scarce and the scheduler ..
1. Stop working
2. All jobs will hangs for some time
3. All jobs will be stopped and needs to be re-started
4. ResourceManager symmetrically request back resources from a running application


Question : Suppose you have MapReduce jobs with each the following priorities


JobName : Priority
Job1 : 60
Job2 : 70
Job3 : 20
Job4 : 40
Job5 : 10

Higher value means higher priority, now you have Resource Manager configured with the FIFO Scheduler.
All the jobs are submitted in the Job1 first,Job2, Job3, Job4 and Job5 as lasst with their
priorities configured. So in which order the Jobs will be executed

 : Suppose you have MapReduce jobs with each the following priorities
1. Job2,Job1,Job4,Job3,Job5
2. Job5,Job4,job3,job2,Job1
3. Job1,Job2,Job3,Job4,Job5
4. Random order based on the Data Volume


Question : You have configured Hadoop Mapreduce V with Fair Scheduler with the two queues.
But one of the queue is using the less than its fair share. Now as soon as new resources are available then that will be granted to this queue.
 : You have configured Hadoop Mapreduce V with Fair Scheduler with the two queues.
1. True
2. False