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Exam 1z0-449 topic 1 question 29 discussion

Actual exam question from Oracle's 1z0-449
Question #: 29
Topic #: 1
[All 1z0-449 Questions]

What is the main purpose of the Oracle Loader for Hadoop (OLH) Connector?

  • A. runs transformations expressed in XQuery by translating them into a series of MapReduce jobs that are executed in parallel on a Hadoop cluster
  • B. pre-partitions, sorts, and transforms data into an Oracle ready format on Hadoop and loads it into the Oracle database
  • C. accesses and analyzes data in place on HDFS by using external tables
  • D. performs scalable joins between Hadoop and Oracle Database data
  • E. provides a SQL-like interface to data that is stored in HDFS
  • F. is the single SQL point-of-entry to access all data
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Suggested Answer: B 🗳️
Oracle Loader for Hadoop is an efficient and high-performance loader for fast movement of data from a Hadoop cluster into a table in an Oracle database. It prepartitions the data if necessary and transforms it into a database-ready format.
References:
https://docs.oracle.com/cd/E37231_01/doc.20/e36961/olh.htm#BDCUG140
by tranquangdodo at April 4, 2025, 7:47 a.m.

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