Question 1 : NameNode is monitored and upgraded in a __________ transition.
1. safemode
2. securemode
3. servicemode
4. none of the mentioned
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Question 2 : __________ is a standard Java API for monitoring and managing applications.
1. JVX
2. JVM
3. JMX
4. None of the mentioned
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Question 3 : Which of the tab shows all the role instances that have been instantiated for this service ?
1. Service
2. Status
3. Instance
4. All of the mentioned
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Question 4 : Which of the following is a common reason to restart hadoop process ?
1. Upgrade Hadoop
2. React to incidents
3. Remove worker nodes
4. All of the mentioned
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Question 5 : Which of the following is a configuration management system ?
1. Alex
2. Puppet
3. Acem
4. None of the mentioned
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Question 6 : ___________ mode allows you to suppress alerts for a host, service, role, or even the entire cluster.
1. Safe
2. Maintenance
3. Secure
4. All of the mentioned
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Question 7 : Which of the following is a common hadoop maintenance issue ?
1. Lack of tools
2. Lack of configuration management
3. Lack of web interface
4. None of the mentioned
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Question 8 : During start up, the ___________ loads the file system state from the fsimage and the edits log file.
1. DataNode
2. NameNode
3. ActionNode
4. None of the mentioned
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Question 9 : HDFS provides a command line interface called __________ used to interact with HDFS.
1. “HDFS Shell”
2. “FS Shell”
3. “DFS Shell”
4. None of the mentioned
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Question 10 : ________ is the slave/worker node and holds the user data in the form of Data Blocks.
1. DataNode
2. NameNode
3. Data block
4. Replication
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