Oracle Oracle Certifications 1Z0-928 Questions & Answers

• Question 31:

  You are a Spark developer using Spark RDDs for data processing. You realize Resilient Distributed Data Sets (RDDs) are evaluated lazily.

  Which function do you need to execute to materialize RDDs?

  A. Coalesce ()

  B. ReduceByKey ()

  C. Filter ()

  D. CountByKey ()

  E. Map ()

  Correct Answer: D

• Question 32:

  Which three pluggable schedulers are supported by YARN?

  A. First in First Out

  B. Last In First Out

  C. Capacity Scheduler

  D. Timed Scheduler

  E. Fair Scheduler

  Correct Answer: ACE

  Reference: https://www.cloudera.com/documentation/enterprise/5-8-x/topics/admin_schedulers.html

• Question 33:

  ABC Company maintains two Hadoop clusters, one for test and one for production. One of the developers wants to copy a data file from the test to the production environment.

  Which two are possible options to accomplish this?

  A. Use Flume to ingest the file again and deliver it to production.

  B. Back up the file to tape and restore it to the production cluster.

  C. Use an FTP command to copy files between the test and production environments.

  D. Use the hdfs dfs -cp command to copy the file from test to production.

  Correct Answer: CD

• Question 34:

  You have implemented an environment to store and process structured and unstructured data with Oracle Big Data Cloud Service and Oracle Database Cloud Service. You want to easily see the data in your Hadoop cluster and you want to use the Result Set in the Oracle Database to perform robust analysis using Oracle Advanced Analytics.

  Which Big Data Connector gives you the ability for batch and dynamic loading?

  A. Oracle Loader for Hadoop

  B. Oracle Data Integrator for Hadoop

  C. Oracle Datasource for Hadoop

  D. Oracle SQL Connector for Hadoop

  Correct Answer: D

• Question 35:

  You want to take advantage of the many Oracle products your company is using with on-premises products and with cloud services. Your company has locations geographically dispersed. You need to not only share data changes with all those locations, but also want to process the data with various Hadoop products.

  Which Big Data Connector should you use?

  A. Oracle R Advanced Analytics for Hadoop

  B. Oracle GoldenGate for Hadoop

  C. Oracle SQL Connector for Hadoop

  D. Oracle Data Integrator for Hadoop

  Correct Answer: A

• Question 36:

  Oracle's unified data management platform provides analysts with the ability to execute a single SQL statement across many data stores.

  Which three are data stores the SQL can be executed in?

  A. NoSQL databases

  B. Hadoop clusters

  C. Object-oriented databases

  D. Directory service store

  E. Relational databases

  Correct Answer: ABE

  Reference: https://www.oracle.com/technetwork/database/bigdata-appliance/learnmore/ bigdatasqloverview21jan2015-2408000.pdf (page 5)

• Question 37:

  What operating system is Big Data Cloud Service running on?

  A. Oracle Linux

  B. Red Hat Linux

  C. Oracle Solaris

  D. Windows 10

  Correct Answer: A

  Reference: https://docs.oracle.com/en/cloud/paas/big-data-cloud/csbdi/oracle-big-data-cloudservice.html#GUID-0D490FB2-D93C-4C01-BCD5-C7C2ABD9C35F

• Question 38:

  Oracle Cloud provides options of where you can securely deploy your cloud services. Where can you deploy Oracle Big Data Cloud?

  A. in AWS data centers

  B. in your data centers behind the customer's firewall

  C. in Oracle Public Cloud Data Centers

  D. Oracle Cloud in your data centers is not a cloud-related solution.

  Correct Answer: C

• Question 39:

  How can you collect and move Syslog data with HDFS without any data loss?

  A. Use the HDFS copy command as long as you have necessary HDFS and Cluster Access Privileges.

  B. Use FLUME with Memory channel and Sink.

  C. Use FLUME with In File channel

  D. Use PIG with error checking enabled

  Correct Answer: B

• Question 40:

  Which is NOT a valid way the data streaming platform Kafka can be deployed in the Oracle cloud?

  A. Customers can set up Apache Kafka on Oracle Infrastructure Cloud and manage it.

  B. Customers can subscribe to Event Hub Cloud Service fully managed by Oracle (managed service).

  C. Customers can deploy Oracle Event Hub Cloud service on an AWS EC2 instance.

  D. Customers can subscribe to Event Hub Cloud Service (Apache Kafka) and manage it.

  Correct Answer: D

  Reference: https://cloud.oracle.com/event-hub