1z0-449 Exam Dumps | What access driver does the Oracle SQL Connector for HDFS use when reading HDFS data by using external

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Question 9/72

What access driver does the Oracle SQL Connector for HDFS use when reading HDFS data by using external tables?

A. ORACLE_DATA_PUMP

B. ORACLE_LOADER

C. ORACLE_HDP

D. ORACLE_BDSQL

E. HADOOP_LOADER

F. ORACLE_HIVE_LOADER

Correct Answer: B

Explanation/Reference:
Oracle SQL Connector for HDFS creates the external table definition for Data Pump files by using the metadata from the Data Pump file header. It uses the ORACLE_LOADER access driver with the preprocessor access parameter. It also uses a special access parameter named EXTERNAL VARIABLE DATA, which enables ORACLE_LOADER to read the Data Pump format files generated by Oracle Loader for Hadoop.
References: https://docs.oracle.com/cd/E37231_01/doc.20/e36961/sqlch.htm#BDCUG356

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