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

Question : If a file which is MB how much space block space it will used ?

1. 33 MB
2. 64 MB
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4. None of the Above



Correct Answer : Get Lastest Questions and Answer :

Although files are split into 64MB or 128 MBblocks, if a file is smaller than this the full
64 MB or 128 MB will not be used.




Question : How blocks are stored in HDFS

1. As a binary file
2. As a decoded file
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4. Stored as archived


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Blocks are stored as standard files on the DataNodes, in a set of directories apecified in
Hadoop's configuration files




Question :

Which is the correct option for accessing the file which is stored in HDFS


1. Application can read and write files in HDFS using JAVA API
2. There is a commnad line option to access the files
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4. 1,2 and 3 are correct
5. 1 and 2 are correct

Correct Answer : Get Lastest Questions and Answer :

Application can access the files using Java API and typically the files are created in the local filesystem and
then moved to the HDFS, there is also one command hadoop fs which is used to access the files in HDFS

Related Questions

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Question : You have configured the Fair Scheduler in your Hadoop MRv cluster a pool with a minimum share configured,
for example, may take slots away from another pool to reach that minimum share when a MapReduce Mapper runs in that pool.

1. True
2. False


Question : You have configured the Fair Scheduler in your Hadoop MRv cluster. Pools are allocated their 'fair share'
of task slots based on the total number of slots available, and also the demand in the pool, a pool will never be allocated more slots than it needs.

1. True
2. False


Question : If only one job is running on the cluster, it will consume as many task resources as it needs, up to the total of half
capacity of the cluster, in case of Fair Scheduler

1. True
2. False


Question : In YARN containers are also called resources, which is collection of allocated memory and cores?

1. True
2. False


Question : In your cluster ResourceManager is configured with the "Fair Scheduler", and on average every hour Hadoop runs jobs in parallel.
Now currently single job is running, how much of the resource capacity of the cluster will be used by this running single job.



1. 1/100 resource of the cluster
2. 20% of the cluster capacity
3. May use full capacity of the cluster
4. It can not be found




Question :

The ____________ supports a number of features such as weights on queues (heavier queues get more containers),
minimum shares, maximum shares, and FIFO policy within queues, but the basic idea is to share the
resources as uniformly as possible.

1. Fair Scheduler
2. Capacity Scheduler
3. FIFO Scheduler
4. Both 1 and 2
5. Both 2 and 3