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Cloudera CCA-410 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Cluster Architecture and Installation | - CDH4 cluster planning and deployment
|
| Topic 2: Cluster Monitoring and Troubleshooting | - Monitoring tools and logs
|
| Topic 3: HDFS Management | - Data lifecycle operations
|
| Topic 4: Security and User Management | - Authentication and authorization
|
| Topic 5: MapReduce and Processing Framework | - MapReduce v1 execution model (CDH4)
|
Cloudera Certified Administrator for Apache Hadoop CDH4 Sample Questions:
Which three file actions can execute as you write a file into HDFS?
- A. You can delete the file
- B. You can rename the file
- C. You can move the file
- D. You can index the file
- E. You can update the files contents
Correct Answer: A,B,C 🗳️
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For each job, the Hadoop framework generates task log files. Where are Hadoop's task log files stored?
- A. In HDFS, in the directory of the user who generates the job.
- B. On the local disk of the slave node running the task.
- C. Cached on the local disk of the slave node running the task, then purged immediately upon task completion.
- D. Cached on the local disk of the slave node running the task, then copied into HDFS.
Correct Answer: B 🗳️
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Identify the daemon that performs checkpoint operations of the namespace state in a cluster configured with HDFS High Availability (HA) using Quorum based-storage?
- A. NameNode
- B. CheckpointNode
- C. NodeManeger
- D. JournalNode
- E. Standby NameNode
- F. Secondary NameNode
- G. BackupNode
Correct Answer: E 🗳️
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Your cluster Mapreduce V1 (MVR1). What determines where blocks are return into HDFS client application?
- A. The client immediately to data nodes based on the clusters rack locality settings
- B. the client writes immediately to data nodes at random
- C. The client queries the name node, which returns information on which data nodes to use. Then client writes to those data nodes.
- D. The clients sends the data to the name node, which then writes those blocks to the data nodes
Correct Answer: C 🗳️
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Which MapReduce daemon instantiates user code, and executes map and reduce tasks on a cluster running MapReduce v1 (MRv1)?
- A. ApplicationMaster
- B. NameNode
- C. DataNode
- D. TaskTracker
- E. ResourceManager
- F. JobTracker
- G. NodeManager
Correct Answer: D 🗳️
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