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Hortonworks HADOOP-PR000007 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Hadoop Ecosystem Integration | - Data ingestion and ETL workflows - HDFS interaction - MapReduce basics |
| Data Processing with Pig | - Pig Latin fundamentals
|
| Data Warehousing with Hive | - HiveQL fundamentals
|
Hortonworks-Certified-Apache-Hadoop-2.0-Developer(Pig and Hive Developer) Sample Questions:
Table metadata in Hive is:
- A. Stored in ZooKeeper.
- B. Stored along with the data in HDFS.
- C. Stored in the Metastore.
- D. Stored as metadata on the NameNode.
Correct Answer: C 🗳️
Which one of the following statements describes a Pig bag. tuple, and map, respectively?
- A. Ordered collection of maps, ordered collection of bags, and unordered set of key/value pairs
- B. Unordered collection of tuples, ordered set of fields, set of key value pairs
- C. Unordered collection of maps, ordered collection of tuples, ordered set of key/value pairs
- D. Ordered set of fields, ordered collection of tuples, ordered collection of maps
Correct Answer: B 🗳️
Which two of the following are true about this trivial Pig program' (choose Two)
- A. Pig assumes the contents of myfile are comma delimited
- B. The contents of myfile appear on stdout
- C. ABC has a schema associated with it
- D. myfile is read from the user's home directory in HDFS
Correct Answer: B,D 🗳️
Which best describes what the map method accepts and emits?
- A. It accepts a single key-value pairs as input and can emit any number of key-value pair as output,
including zero. - B. It accepts a single key-value pairs as input and can emit only one key-value pair as output.
- C. It accepts a list key-value pairs as input and can emit only one key-value pair as output.
- D. It accepts a single key-value pair as input and emits a single key and list of corresponding values as
output.
Correct Answer: A 🗳️
In a MapReduce job with 500 map tasks, how many map task attempts will there be?
- A. Exactly 500.
- B. At most 500.
- C. Between 500 and 1000.
- D. At least 500.
- E. It depends on the number of reduces in the job.
Correct Answer: D 🗳️
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