1Z0-928 Online Practice Questions and Answers

ABC Media receives thousands of files every day from many sources. Each text-formatted file is typically 1-2 MB in size. They need to store all these files for at least two years. They heard about Hadoop and about the HDFS filesystem, and want to take advantage of the cost-effective storage to store the vast number of files.

Which two recommendations could you provide to the customer to maintain the effectiveness of HDFS with the growing number of files?

A. Consider breaking down files into smaller files before ingesting.

B. Consider adding additional Name Nodes to increase data storage capacity.

C. Reduce the memory available for namenode as 1-2 MB files don't need a lot of memory.

D. Consider concatenating files after ingesting.

E. Use compression to free up space.

During provisioning, which can you create in order to integrate Big Data Cloud with Other Oracle PaaS services?

A. Attachments

B. Associations

C. Couplings

D. Data Pipelines

When you create a cluster, how many permanent nodes must you have before you can have edge nodes?

A. One

B. Two

C. Five

D. Four

E. Three

You are in a project with teams from other departments of the company. It is necessary to collaborate not only creative ideas but also the data with the other departments. In the Big Data Cloud Service, you need to copy data that is in very large files between HDFS on your cluster to their cloud storage.

Which utility is more efficient for copying large data files?

A. odcp

B. ftp

C. fastcopy

D. scp

As the Big Data Cloud Service Administrator, you need to access one of the cluster nodes. Using secure shell, what are the two things you will need in order to access the node?

A. Name of the cluster node

B. Private ssh key pair

C. Name of the service instance

D. IP Address of the cluster node

E. Public ssh key pair

You execute the command hdfs dfs -is to view the directory listing on the Edge/Gateway node in a secured

cluster, but get an error. You were able to execute the same command successfully 24 hours ago. No

changes have been made to the user or the infrastructure.

How do you fix the problem?

A. You need to obtain a valid Kerberos ticket by executing the KINIT command.

B. You need to reboot the Hadoop cluster to reinstate access to users.

C. A valid Kerberos ticket exists but you need to initialize it using the KINIT command.

D. You are on wrong node. The hdfs dfs -is command can only be executed from the Name Node.

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

Given: A Kerberos principal is a unique identity to which Kerberos can assign tickets, and a realm is where the Kerberos database is stored.

What is the realm used by Big Data Cloud Service?

A. bigdatacloudservice.oracle.com

B. bdcs.oracle.com

C. bdacoudservice.oracle.com

D. bigdata.oracle.com

Which three statements are true about YARN?

A. It handles and schedules resource requests.

B. Yarn can run applications that follow MapReduce and Non MapReduce Model like Graph Processing.

C. Yarn does NOT support running multiple applications in a single Hadoop Cluster.

D. It provides Daemons and API to develop generic distributed applications.

E. Yarn model Functionality is identical to Apache Hadoop MapReduce (MR1).

F. Yarn combines the two major functionalities of Job tracker: Resource Management and Job Scheduling

What utility can you use to manage the Whilelist?

A. mammoth

B. bdcscli

C. dcii

D. bdacii