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Hortonworks Apache-Hadoop-Developer Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Apache Hive Development | 25% | - Use Hive functions, views, and metastore - Write and optimize HiveQL queries - Create and manage Hive tables, partitions, and buckets |
| Topic 2: Hadoop Fundamentals & Architecture | 20% | - HDFS operations and file management - YARN architecture and job execution - MapReduce concepts and job lifecycle |
| Topic 3: Data Ingestion | 25% | - Load data into HDFS from external sources - Ingest streaming data with Flume - Import/export data using Sqoop |
| Topic 4: Apache Pig Development | 30% | - Write and optimize Pig Latin scripts - Debug and tune Pig jobs - Data transformation, filtering, joining, and aggregation |
Hortonworks Hadoop 2.0 Certification exam for Pig and Hive Developer Sample Questions:
Assuming the following Hive query executes successfully:
Which one of the following statements describes the result set?
- A. A frequency distribution of the top 80 words that follow the subsequence "you are" in the lines column of the inputdata table.
- B. A trigram of the top 80 sentences that contain "you are" followed by a null space in the lines column of the inputdata table.
- C. A bigram of the top 80 sentences that contain the substring "you are" in the lines column of the input data A1 table.
- D. An 80-value ngram of sentences that contain the words "you" or "are" in the lines column of the inputdata table.
Correct Answer: A 🗳️
Review the following 'data' file and Pig code.
Which one of the following statements is true?
- A. The code does not execute successfully because D is not a valid relation
- B. The code executes successfully but there is not output because the D relation is empty
- C. The Output Of the DUMP D command IS (M,{(M,62.95102),(M,38,95111)})
- D. The output of the dump d command is (M, {(38,95in),(62,95i02)})
Correct Answer: C 🗳️
Which one of the following statements is FALSE regarding the communication between DataNodes and a federation of NameNodes in Hadoop 2.0?
- A. Each DataNode receives commands from one designated master NameNode.
- B. Each DataNode registers with all the NameNodes.
- C. DataNodes send periodic heartbeats to all the NameNodes.
- D. DataNodes send periodic block reports to all the NameNodes.
Correct Answer: A 🗳️
In a MapReduce job with 500 map tasks, how many map task attempts will there be?
- A. At most 500.
- B. Exactly 500.
- C. Between 500 and 1000.
- D. It depends on the number of reduces in the job.
- E. At least 500.
Correct Answer: E 🗳️
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Given the following Hive command:
Which one of the following statements is true?
- A. The files in the mydata folder are copied to a subfolder of /apps/hlve/warehouse
- B. The files in the mydata folder are moved to a subfolder of /apps/hive/wa re house
- C. The files in the mydata folder do not move from their current location In HDFS
- D. The files in the mydata folder are copied into Hive's underlying relational database
Correct Answer: C 🗳️
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