CSE MCQs :: Hadoop MCQs
- Point out the wrong statement :
- _________ command is used to copy file or directories recursively.
- __________ mode is a Namenode state in which it does not accept changes to the name space.
- Point out the wrong statement :
- Which of the following is a common reason to restart hadoop process ?
- __________ Manager's Service feature monitors dozens of service health and performance metrics about the services and role instances running on your cluster.
- Point out the wrong statement :
- Which of the following scenario may not be a good fit for HDFS ?
- The need for data replication can arise in various scenarios like :
- Point out the correct statement :
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A.
If you set the HBase service into maintenance mode, then its roles (HBase Master and all Region Servers) are put into effective maintenance mode
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B.
If you set a host into maintenance mode, then any roles running on that host are put into effective maintenance mode
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C.
Putting a component into maintenance mode prevent events from being logged
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D.
None of the mentioned
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A.
Replication Factor can be configured at a cluster level (Default is set to 3) and also at a file level
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B.
Block Report from each DataNode contains a list of all the blocks that are stored on that DataNode
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C.
User data is stored on the local file system of DataNodes
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D.
DataNode is aware of the files to which the blocks stored on it belong to
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A.
HDFS is not suitable for scenarios requiring multiple/simultaneous writes to the same file
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B.
HDFS is suitable for storing data related to applications requiring low latency data access
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C.
HDFS is suitable for storing data related to applications requiring low latency data access
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D.
None of the mentioned
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