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Cloudera CCA-410 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Cluster Management & Monitoring | 25% | - Managing nodes and daemons - Capacity and performance planning - Starting/stopping services - Monitoring health and logs |
| Topic 2: Hadoop Cluster Installation & Configuration | 30% | - CDH4 deployment - Network and OS tuning - HDFS architecture and configuration - MapReduce v1 configuration |
| Topic 3: HDFS Operations & High Availability | 20% | - Replication and block management - File system maintenance - NameNode and DataNode management - HDFS High Availability (HA) |
| Topic 4: Troubleshooting & Optimization | 10% | - Job failure resolution - Performance tuning - Common error diagnosis |
| Topic 5: Security & Data Governance | 15% | - Authorization and permissions - Data protection and backup - Kerberos authentication |
Cloudera Certified Administrator for Apache Hadoop CDH4 Sample Questions:
Question #1
Your developers request that you enable them to use pig on your hadoop cluster. What do you need to configure and / or install?
A. Install the pig interpreter on the master node which is running the jobtracker
B. Install the pig interpreter on the client machines only.
C. Install the pig interpreter on all nodes in the cluster, and the client machines
D. Install the pig jar's on the all slave nodes in the cluster the pig interpreter on the client machines
Question #2
The failure of which daemon makes HDFS unavailable on a cluster running MapReduce v1 (MRv1)?
A. Application Manager
B. Node Manager
C. Resource Manager
D. Secondary NameNode
E. NameNode
F. DataNode
Question #3
Which two daemons must be installed on master nodes in hadoop cluster running mapreduce V1 (MRV1)?
A. Hmaster
B. Tasktracker
C. Datanode
D. Resourcemanager
E. ApplicationMaster
F. Namenode
G. Zookeeper
Question #4
Which MapReduce v2 (MR2/YARN) daemon is a per-machine slave responsible for launching application containers and monitoring application resources usage?
A. ResourceManager
B. TaskTracker
C. JobTracker
D. NodeManager
E. ApplicationMasterService
F. ApplicationMaster
Question #5
When requesting a file, how does HDFS retrieves the blocks associated with that file?
A. the namenode reads the block ID's from disk
B. the namenode requires the datanode for the block ID's
C. The namenode reads the block ID's from memory
D. the client polls the datanodes for the block ID's
Solutions:
| Question #1 Correct Answer: B | Question #2 Correct Answer: E | Question #3 Correct Answer: E,F | Question #4 Correct Answer: F | Question #5 Correct Answer: A |
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