Oracle 1z1-449 Actual Free Exam Questions & Community Discussion

Exam Code/Number: 1z1-449
Exam Name/Title: Oracle Big Data 2017 Implementation Essentials
Certification Provider: Oracle
Corresponding Certification: Oracle Big Data Appliance

Exam Questions: 72
Updated On: Jul 10, 2026

Question #1

Which command should you use to view the contents of the HDFS directory,
/user/oracle/logs?

A. hive> select * from /user/oracle/logs

B. cd /user/oracle/logshadoop fs -ls *

C. hadoop fs -listfiles /user/oracle/logs

D. hadoop fs -ls /user/oracle/logs

E. hadoop fs -cat /user/oracle/logs

F. cd /user/oraclehadoop fs -ls logs

Discussion 0

Correct Answer: D Vote an answer

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Question #2

What are the two advantages of using Hive over MapReduce? (Choose two.)

A. Hive is much faster than MapReduce because it accesses data directly.

B. Hive is a free tool; Hadoop requires a license.

C. Hive does not require MapReduce to run in order to analyze data.

D. Hive simplifies Hadoop for new users.

E. Hive allows for sophisticated analytics on large data sets.

Discussion 0

Correct Answer: D,E Vote an answer

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Question #3

What is the result when a flume event occurs for the following single node configuration?

A. The event output is not defined in this section.

B. The event is sent out on port 44444.

C. The event is written to memory.

D. The event is written to the netcat process.

E. The event is logged to the screen.

Discussion 0

Correct Answer: E Vote an answer

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Question #4

Identify two ways to create an external table to access Hive data on the Big Data Appliance by using Big Data SQL. (Choose two.)

A. Use the Enterprise Manager Big Data SQL Configuration page to create the table.

B. You can use the dbms_hadoop.create_extdd1_for_hive package to return the text of the
CREATE TABLE command.

C. Use a CREATE table statement with ORGANIZATION EXTERNAL and the
ORACLE_HIVE access parameter.

D. Use a CREATE table statement with ORGANIZATION EXTERNAL and the
ORACLE_BDSQL access parameter.

E. Use Cloudera Manager's Big Data SQL Query builder.

Discussion 0

Correct Answer: B,C Vote an answer

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Question #5

Your customer uses Active Directory to manage user accounts. You are setting up Hadoop
Security for the customer's Big Data Appliance.
How will you integrate Hadoop and Active Directory?

A. Configure Active Directory to use Kerberos' Key Distribution Center.

B. Set up Kerberos' Key Distribution Center to be the Active Directory keystore.

C. Set up a one-way cross-realm trust from the Active Directory realm to the Kerberos realm.

D. Set up a one-way cross-realm trust from the Kerberos realm to the Active Directory realm.

Discussion 0

Correct Answer: D Vote an answer

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Question #6

The hdfs_stream script is used by the Oracle SQL Connector for HDFS to perform a specific task to access data.
What is the purpose of this script?

A. It is the streaming script that creates a database directory.

B. It is the preprocessor script for the Impala table.

C. It is the preprocessor script for the Oracle partitioned table.

D. It is the preprocessor script for the HDFS external table.

E. It defines the jar file that points to the directory where Hive is installed.

Discussion 0

Correct Answer: D Vote an answer

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Question #7

Your customer has three XML files in HDFS with the following contents. Each XML file contains comments made by users on a specific day. Each comment can have zero or more "likes" from other users. The customer wants you to query this data and load it into the Oracle Database on Exadata.
How should you parse this data?

A. by creating a table in Hive and using MapReduce to parse the XML data by column

B. by using the built-in functions for reading JSON in the Oracle XQuery for Hadoop
Connector

C. by using the XML file module in the Oracle XQuery for Hadoop Connector

D. by configuring the Oracle SQL Connector for HDFS and parsing by using SerDe

Discussion 0

Correct Answer: D Vote an answer

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Question #8

Your customer receives data in JSON format.
Which option should you use to load this data into Hive tables?

A. Python

B. Sqoop

C. a custom Java program

D. SerDe

E. Flume

Discussion 0

Correct Answer: D Vote an answer

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