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Hortonworks Apache-Hadoop-Developer Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Data Ingestion | 25% | - Load data into HDFS from external sources - Import/export data using Sqoop - Ingest streaming data with Flume |
| Hadoop Fundamentals & Architecture | 20% | - HDFS operations and file management - MapReduce concepts and job lifecycle - YARN architecture and job execution |
| Apache Pig Development | 30% | - Write and optimize Pig Latin scripts - Debug and tune Pig jobs - Data transformation, filtering, joining, and aggregation |
| Apache Hive Development | 25% | - Create and manage Hive tables, partitions, and buckets - Use Hive functions, views, and metastore - Write and optimize HiveQL queries |
Hortonworks Hadoop 2.0 Certification exam for Pig and Hive Developer Sample Questions:
When is the earliest point at which the reduce method of a given Reducer can be called?
- A. Not until all mappers have finished processing all records.
- B. It depends on the InputFormat used for the job.
- C. As soon as at least one mapper has finished processing its input split.
- D. As soon as a mapper has emitted at least one record.
Correct Answer: A 🗳️
Explanation: Only visible for Exam4Free members. You can sign-up / login (it's free).
You want to Ingest log files Into HDFS, which tool would you use?
- A. Sqoop
- B. HCatalog
- C. Flume
- D. Ambari
Correct Answer: C 🗳️
What is the disadvantage of using multiple reducers with the default HashPartitioner and distributing your workload across you cluster?
- A. You will longer be able to take advantage of a Combiner.
- B. There are no concerns with this approach. It is always advisable to use multiple reduces.
- C. By using multiple reducers with the default HashPartitioner, output files may not be in globally sorted order.
- D. You will not be able to compress the intermediate data.
Correct Answer: C 🗳️
Explanation: Only visible for Exam4Free members. You can sign-up / login (it's free).
In Hadoop 2.0, which one of the following statements is true about a standby NameNode?
The Standby NameNode:
- A. Receives the same block reports as the active NameNode.
- B. Runs on the same machine and shares the memory of the active NameNode.
- C. Processes all client requests and block reports from the appropriate DataNodes.
- D. Communicates directly with the active NameNode to maintain the state of the active NameNode.
Correct Answer: A 🗳️
Which one of the following is NOT a valid Oozie action?
- A. mapreduce
- B. hive
- C. pig
- D. mrunit
Correct Answer: D 🗳️
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