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



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.
: You have configured the Fair Scheduler in your Hadoop MRv cluster a pool with a minimum share configured,
1. True
2. False

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Explanation:





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.
: You have configured the Fair Scheduler in your Hadoop MRv cluster. Pools are allocated their 'fair share'
1. True
2. False

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Explanation:





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
: 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
1. True
2. False

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Explanation:



Related Questions

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




Question : How blocks are stored in HDFS
 : How blocks are stored in HDFS
1. As a binary file
2. As a decoded file
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4. Stored as archived



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


Question : Which is the correct command to copy files from local to HDFS file systems
 : Which is the correct command to copy files from local to HDFS file systems
1. hadoop fs -copy pappu.txt pappu.txt
2. hadoop fs -copyFromPath pappu.txt pappu.txt
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4. None of the above


Question : top and free can be used to display memory and swap information. In both applications the
memory in use includes read cache which will be released for application use before swapping begins.
 : top and free can be used to display memory and swap information. In both applications the
1. True
2. False


Question : Which is the correct command to list all the files from current directory
 : Which is the correct command to list all the files from current directory
1. hadoop fs -ls
2. hadoop fs -list
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4. All of the above