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Hortonworks Apache-Hadoop-Developer Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Apache Hive Development | 25% | - Use Hive functions, views, and metastore - Create and manage Hive tables, partitions, and buckets - Write and optimize HiveQL queries |
| Hadoop Fundamentals & Architecture | 20% | - MapReduce concepts and job lifecycle - HDFS operations and file management - 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 |
| Data Ingestion | 25% | - Ingest streaming data with Flume - Load data into HDFS from external sources - Import/export data using Sqoop |
Hortonworks Hadoop 2.0 Certification exam for Pig and Hive Developer Sample Questions:
Which best describes how TextInputFormat processes input files and line breaks?
- A. The input file is split exactly at the line breaks, so each RecordReader will read a series of complete lines.
- B. Input file splits may cross line breaks. A line that crosses file splits is read by the RecordReader of the split that contains the beginning of the broken line.
- C. Input file splits may cross line breaks. A line that crosses file splits is ignored.
- D. Input file splits may cross line breaks. A line that crosses file splits is read by the RecordReader of the split that contains the end of the broken line.
- E. Input file splits may cross line breaks. A line that crosses file splits is read by the RecordReaders of both splits containing the broken line.
Correct Answer: B 🗳️
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Given the following Hive commands:
Which one of the following statements Is true?
- A. The file mydata.txt is moved to a subfolder of /apps/hive/warehouse
- B. The file mydata.txt is copied to a subfolder of /apps/hive/warehouse
- C. The file mydata.txt is copied into Hive's underlying relational database 0.
- D. The file mydata.txt does not move from Its current location in HDFS
Correct Answer: B 🗳️
Which HDFS command displays the contents of the file x in the user's HDFS home directory?
- A. hadoop fs -cp x
- B. hdfs fs -get x
- C. hadoop fs -cat x
- D. hadoop fs -Is x
Correct Answer: C 🗳️
You want to Ingest log files Into HDFS, which tool would you use?
- A. Sqoop
- B. Ambari
- C. HCatalog
- D. Flume
Correct Answer: D 🗳️
The Hadoop framework provides a mechanism for coping with machine issues such as faulty configuration or impending hardware failure. MapReduce detects that one or a number of machines are performing poorly and starts more copies of a map or reduce task. All the tasks run simultaneously and the task finish first are used. This is called:
- A. Combine
- B. IdentityReducer
- C. Default Partitioner
- D. Speculative Execution
- E. IdentityMapper
Correct Answer: D 🗳️
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