Hadoop Cluster Management — Part 1 MCQs with Explanations

Manage computation resources is the correct answer to “What is the primary role of the Hadoop ResourceManager in a Hadoop cluster”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Manage metadata of HDFS is the correct answer to “In Hadoop, what is the function of the NameNode in the Hadoop Distributed File System (HDFS)”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Node that stores and manages data is the correct answer to “What does the term "DataNode" refer to in the context of a Hadoop cluster”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Backup for the NameNode is the correct answer to “What is the purpose of the Hadoop Secondary NameNode in a Hadoop cluster”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Execute MapReduce jobs is the correct answer to “In Hadoop, what is the significance of the Hadoop JobTracker in a Hadoop cluster”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Execute MapReduce jobs is the correct answer to “What is the primary role of the Hadoop TaskTracker in a Hadoop cluster”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Manage computation resources is the correct answer to “In Hadoop, what is the role of the Hadoop ResourceManager in the YARN architecture”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Manage task execution in MapReduce jobs is the correct answer to “What is the primary function of the Hadoop NodeManager in the YARN architecture”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Awareness of data storage in racks is the correct answer to “In Hadoop, what does the term "Rack Awareness" refer to in a Hadoop cluster”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Schedule resources fairly is the correct answer to “What is the purpose of the Hadoop ResourceManager "Fair Scheduler" in a Hadoop cluster”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Allocate resources based on capacity is the correct answer to “In Hadoop, what is the role of the Hadoop ResourceManager "Capacity Scheduler" in a Hadoop cluster”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Schedule resources efficiently is the correct answer to “What is the primary role of the Hadoop ResourceManager "Resource Scheduler" in a Hadoop cluster”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Label nodes for specific workloads is the correct answer to “In Hadoop, what is the purpose of the Hadoop ResourceManager "Node Label" feature in a Hadoop cluster”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Ensure availability of metadata is the correct answer to “What is the significance of the Hadoop NameNode High Availability (HA) feature in HDFS”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Reclaim resources if necessary is the correct answer to “In Hadoop, what is the primary role of the Hadoop ResourceManager "Preemption" feature in a Hadoop cluster”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Prevent nodes from being used temporarily is the correct answer to “In Hadoop, what is the purpose of the Hadoop ResourceManager "Blacklisting" feature in a Hadoop cluster”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Backup for the NameNode is the correct answer to “What is the primary function of the Hadoop Secondary NameNode in a Hadoop cluster”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Remove a node from service is the correct answer to “In Hadoop, what does the term "Decommissioning" refer to in the context of a Hadoop cluster”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Schedule related tasks together is the correct answer to “What is the significance of the Hadoop ResourceManager "Gang Scheduling" feature in a Hadoop cluster”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Dynamically allocate resources is the correct answer to “In Hadoop, what is the purpose of the Hadoop ResourceManager "Dynamic Resource Pools" feature”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Manage task execution in MapReduce jobs is the correct answer to “What is the primary role of the Hadoop NodeManager in the YARN architecture”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Manage metadata of HDFS is the correct answer to “In Hadoop, what is the function of the Hadoop NameNode in the Hadoop Distributed File System (HDFS)”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Monitor node health status is the correct answer to “What is the purpose of the Hadoop ResourceManager "Node Heartbeats" in a Hadoop cluster”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Assign priority to applications is the correct answer to “In Hadoop, what is the role of the Hadoop ResourceManager "Application Priority" feature”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Multiple NameNodes for scalability is the correct answer to “What does the term "HDFS Federation" refer to in the context of Hadoop”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Handle node restarts gracefully is the correct answer to “In Hadoop, what is the purpose of the Hadoop ResourceManager "NodeManager Reboot" feature”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Dynamically adjust container sizes is the correct answer to “What is the significance of the Hadoop ResourceManager "Container Resizing" feature in a Hadoop cluster”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Define resource requirements for applications is the correct answer to “In Hadoop, what is the role of the Hadoop ResourceManager "Resource Profiles" feature”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Manage metadata of HDFS is the correct answer to “What is the primary role of the Hadoop NameNode in the Hadoop Distributed File System (HDFS)”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Safely remove a node from service is the correct answer to “In Hadoop, what is the purpose of the Hadoop ResourceManager "Node Decommissioning" feature”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

securemode is the correct answer to “NameNode is monitored and upgraded in a . . . . . . . . transition.”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Lack of configuration management is the correct answer to “Which of the following is a common hadoop maintenance issue”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

queue is the correct answer to “. . . . . . . . command is used to interact and view Job Queue information in HDFS.”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

All of the mentioned is the correct answer to “Which of the following is a common reason to restart hadoop process”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Instance is the correct answer to “Which of the tab shows all the role instances that have been instantiated for this service”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Rollback is the correct answer to “. . . . . . . . mode is a Namenode state in which it does not accept changes to the name space.”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

JMX is the correct answer to “. . . . . . . . is a standard Java API for monitoring and managing applications.”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Cloudera is the correct answer to “. . . . . . . . Manager's Service feature monitors dozens of service health and performance metrics about the services and role instances running on your cluster.”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Puppet is the correct answer to “Which of the following is a configuration management system”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.

Maintenance is the correct answer to “. . . . . . . . mode allows you to suppress alerts for a host, service, role, or even the entire cluster.”. This question is standard in competitive examination syllabi for Hadoop Cluster Management.