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Cloudera CCA-470 Exam Overview:
| Certification Vendor: | Cloudera |
|---|---|
| Exam Name: | Cloudera Certified Administrator for Apache Hadoop (CCAH) CDH4 Upgrade Exam |
| Exam Number: | CCA-470 |
| Exam Duration: | 90-120 |
| Passing Score: | 70% |
| Real Exam Qty: | 50-60 |
| Exam Price: | USD 295 (approx) |
| Exam Format: | Multiple choice questions |
| Available Languages: | English |
| Recommended Training: | Cloudera Administrator Training Cloudera University Courses |
| Exam Registration: | Cloudera Certification Portal Pearson VUE Cloudera Exams |
| Sample Questions: | Cloudera CCA-470 Sample Questions |
| Exam Way: | Online proctored (Pearson VUE) or authorized testing center |
| Pre Condition: | Recommended experience with Linux systems, Hadoop ecosystem, and basic cluster administration knowledge |
| Official Syllabus URL: | https://www.cloudera.com/services-and-support/certification.html |
Cloudera CCA-470 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Upgrade and Migration (CDH4 focus) | - Upgrading CDH components - Compatibility and migration considerations |
| MapReduce and Job Management | - Job execution and scheduling - Troubleshooting failed jobs |
| Cluster Maintenance and Monitoring | - Monitoring cluster health and performance - Log analysis and debugging |
| Cluster Installation and Configuration | - Installing and configuring CDH4 components - Cluster setup and node management |
| HDFS Administration | - HDFS architecture and data replication - NameNode and DataNode management |
| Hadoop and CDH Architecture | - Hadoop ecosystem components (HDFS, MapReduce) - CDH4 architecture overview and services |
Cloudera Certified Administrator for Apache Hadoop CDH4 Upgrade Exam (CCAH) Sample Questions:
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. JournalNode
- B. Standby NameNode
- C. BackupNode
- D. CheckpointNode
- E. NameNode
- F. Secondary NameNode
- G. NodeManeger
Correct Answer: F 🗳️
Explanation: Only visible for TopExamCollection members. You can sign-up / login (it's free).
Your Hadoop cluster has 12 slave nodes, a block size set to 64MB, and a replication factor of three.
Choose which best describes how the Hadoop Framework distributes block writes into HDFS from a Reducer outputting a 150MB file?
- A. The Reducer will generate twelve blocks and write them to slave nodes nearest the node on which the Reducer runs.
- B. Reducers don't write blocks into HDFS
- C. The Reducer will generate nine blocks and write them randomly to nodes throughout the cluster.
- D. The slave node on which the Reducer runs gets the first copy of every block written. Other block replicas will be placed on other nodes.
Correct Answer: D 🗳️
Explanation: Only visible for TopExamCollection members. You can sign-up / login (it's free).
Which scheduler would you deploy to ensure that your cluster allows short jobs to finish within a reasonable time without starving long-running jobs?
- A. Capacity Scheduler
- B. FIFO Scheduler
- C. Fair Scheduler
- D. Completely Fair Scheduler (CFS)
Correct Answer: C 🗳️
Explanation: Only visible for TopExamCollection members. You can sign-up / login (it's free).
When setting the HDFS block size, which of the following considerations is the least important?
- A. Amount of memory on the NameNode.
- B. Number of files that will be stored in HDFS.
- C. Number of DataNodes.
- D. Disk capacity of the NameNode.
- E. Size of "typical" files that will be stored in HDFS.
Correct Answer: D 🗳️
Explanation: Only visible for TopExamCollection members. You can sign-up / login (it's free).
You are running a Hadoop cluster with all monitoring facilities properly configured. Which scenario will go undetected?
- A. Map or reduce tasks that are stuck in an infinite loop.
- B. The NameNode goes down.
- C. MapReduce jobs that are causing excessive memory swaps.
- D. HDFS is almost full.
- E. A DataNode is disconnected from the cluster.
Correct Answer: A 🗳️
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