Oracle Big Data 2017 Implementation Essentials (1z0-449) Free Practice Test

Question 1

Your customer's IT staff is made up mostly of SQL developers. Your customer would like you to design a system to analyze the spending patterns of customers in the web store.
The data resides in HDFS.
What tool should you use to meet their needs?

A. Oracle Database 12c

B. MapReduce

C. Apache Hive

D. SQL Developer

E. Oracle Data Integrator

Correct Answer: D

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Question 2

You need to create an architecture for your customer's Oracle NoSQL KVStore. The customer needs to store clinical and non-clinical data together but only the clinical data is mission critical.
How can both types of data exist in the same KVStore?

A. Store the two types of data in separate partitions on highly available storage.

B. Store the two types of data with differing consistency policies.

C. Store the clinical data on the master node and the non-clinical data on the replica nodes.

D. Store the two types of data in two separate KVStore units and create database aliases to mimic one KVStore.

Correct Answer: A

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Question 3

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

A. HADOOP_LOADER

B. ORACLE_DATA_PUMP

C. ORACLE_HDP

D. ORACLE_HIVE_LOADER

E. ORACLE_LOADER

F. ORACLE_BDSQL

Correct Answer: E

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Question 4

Your customer needs to analyze large numbers of log files after combining them with customer profile and interaction data. The customer wants to be able to analyze these files back to their go-live date, which was last October.
Which solution should you choose to accomplish this?

A. Hadoop

B. Oracle Database

C. Oracle NoSQL

D. Berkeley DB

Correct Answer: A

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

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

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

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

Correct Answer: C

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Question 6

Which statement is true about the NameNode in Hadoop?

A. If the NameNode goes down and a secondary NameNode has not been defined, the cluster is still accessible.

B. When loading data, the NameNode tells the client or program where to write the data.

C. A query in Hadoop requires a MapReduce job to be run so the NameNode gets the location of the data from the JobTracker.

D. All data passes through the NameNode; so if it is not sized properly, it could be a potential bottleneck.

Correct Answer: A

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Question 7

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

A. The event is written to memory.

B. The event is logged to the screen.

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

D. The event is written to the netcat process.

E. The event is sent out on port 44444.

Correct Answer: B

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Question 8

Your customer has 10 web servers that generate logs at any given time. The customer would like to consolidate and load this data as it is generated into HDFS on the Big Data
Appliance.
Which option should the customer use?

A. Set up a web server agent in Apache Oozie to write the data to HDFS.

B. Write a hive query to listen for new logs and save them in a Hive table.

C. Set up a flume agent to capture the transactions and write them to HDFS.

D. Set up a zookeeper agent to capture the transactions and write them to HDFS.

E. Set up an hbase agent to capture the transactions and write them to HDFS.

Correct Answer: C

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Oracle Big Data 2017 Implementation Essentials (1z0-449) Free Practice Test