Question 11 : The need for data replication can arise in various scenarios like :
1. Replication Factor is changed
2. DataNode goes down
3. Data Blocks get corrupted
4. All of the mentioned
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Question 12 : Which of the following scenario may not be a good fit for HDFS ?
1. HDFS is not suitable for scenarios requiring multiple/simultaneous writes to the same file
2. HDFS is suitable for storing data related to applications requiring low latency data access
3. HDFS is suitable for storing data related to applications requiring low latency data access
4. None of the mentioned
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Question 13 : ________ NameNode is used when the Primary NameNode goes down.
1. Rack
2. Data
3. Secondary
4. None of the mentioned
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Question 14 : For ________, the HBase Master UI provides information about the HBase Master uptime.
1. HBase
2. Oozie
3. Kafka
4. All of the mentioned
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Question 15 : For YARN, the ___________ Manager UI provides host and port information.
1. Data Node
2. NameNode
3. Resource
4. Replication
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Question 16 : Which of the following is used for the MapReduce job Tracker node ?
1. mradmin
2. tasktracker
3. jobtracker
4. none of the mentioned
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Question 17 : Which of the following command runs the HDFS secondary namenode ?
1. secondary namenode
2. secondarynamenode
3. secondary_namenode
4. none of the mentioned
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Question 18 : __________ command is used to interact and view Job Queue information in HDFS.
1. queue
2. priority
3. dist
4. all of the mentioned
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Question 19 : __________ mode is a Namenode state in which it does not accept changes to the name space.
1. Recover
2. Safe
3. Rollback
4. None of the mentioned
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Question 20 : _________ command is used to copy file or directories recursively.
1. dtcp
2. distcp
3. dcp
4. distc
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