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Cloudera CCA-410 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Cluster Installation and Configuration | - CDH4 setup
|
| Topic 2: Data Processing Tools and Ecosystem | - Data ingestion and processing tools
|
| Topic 3: Security and Cluster Operations | - Operational maintenance
|
| Topic 4: HDFS Administration | - Filesystem management
|
| Topic 5: Hadoop Cluster Architecture (CDH4) | - Core Hadoop components
|
| Topic 6: Cluster Monitoring and Troubleshooting | - System monitoring
|
Cloudera Certified Administrator for Apache Hadoop CDH4 Sample Questions:
Identify which two daemons typically run each slave node in a Hadoop cluster running MapReduce v1 (MRv1)
- A. NodeManager
- B. DataNode
- C. NameNode
- D. JobTracker
- E. Secondary NameNode
- F. TaskTracker
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Under which scenario would it be most appropriate to consider using faster (e.g 10 Gigabit) Ethernet as the network fabric for your Hadoop cluster?
- A. When the typical workloads generates a large amount of output data, significantly larger than the amount of intermediate data.
- B. When the typical workloads consumes a large amount of input data, relative to the entire capacity of HDFS.
- C. When the typical workloads consists of processor-intensive tasks.
- D. When the typical workloads generates a large amount of intermediate data, on the order of the input data itself.
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Your cluster implements hdfs high availability (HA) your two namenodes are named hadoop01 and hadoop02. What occurs when you execute the command:
Sudo -u hdfs haadmin -failover hadoop01 hadoop02
- A. Hadoop02 is fenced, and hadoop01 becomes active namenode
- B. Hadoop01 becomes inactive and hadoop02 becomes the active namenode
- C. Hadoop02 becomes the standby namenode and hadoop01 becomes the active namenode
- D. Hadoop01 is fenced, and hadoop02 becomes the active namenode
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Compare the hardware requirements of the NameNode with that of the DataNodes in a Hadoop cluster running MapReduce v1 (MRv1):
- A. The NameNode and DataNodes should the same hardware configuration.
- B. The NameNode requires more memory and requires greater disk capacity than the DataNodes.
- C. The NameNode requires less memory and less disk capacity than the DataNodes.
- D. The NameNode requires more memory and no disk drives.
- E. The NameNode requires more memory but less disk capacity.
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MapReduce V2 (MRv2/YARN) splits which two major functions of the jobtracker into separate daemons?
- A. Managing file system metadata
- B. Job coordination between the resource manager and the node manager
- C. Health status check (heartbeats)
- D. Job scheduling/monitoring
- E. MapReduce metric reporting
- F. Launching tasks
- G. Managing tasks
- H. Resource management
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