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Practice Free 1z0-485 Oracle Exadata Database Machine 2014 Implementation Essentials Exam Questions Answers With Explanation

We at Crack4sure are committed to giving students who are preparing for the Oracle 1z0-485 Exam the most current and reliable questions . To help people study, we've made some of our Oracle Exadata Database Machine 2014 Implementation Essentials exam materials available for free to everyone. You can take the Free 1z0-485 Practice Test as many times as you want. The answers to the practice questions are given, and each answer is explained.

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Question # 6

Identify three best practices for applying asmdeactivationoutcome es on Exadata Database Servers and Exadata Storage Servers?

A.

Backing up database servers and storage cells is not recommended before performing plannedmaintenance.

B.

Database server updates can be rolled back using the the “yum downgrade"procedure.

C.

Bundle patches do not require testing before being installed on a production system.

D.

It is recommended that Exadata systems with Data Guard configured use the"Standby First" patching approach.

E.

Patching should never be interrupted due to a connection drop. It is therefore recommended that you use VNC or the screen utility.

F.

Before patching cells in a rolling manner, you must check asmdeactivationoutcome amModestatus and make sure that cells on all disks are online and that disks can be deactivated.

Question # 7

Identify two ways to reduce the risks associated with the software updates that are performed on a production Exadata system.

A.

Patch all systems at once instead of one at a time.

B.

Test on an Exadata system that is identical tothe production system first.

C.

Updating an engineered system has no risk.

D.

Patch on the standby system first by using Data Guard Standby First Patch Apply.

E.

Create a system-wide firmware and software snapshot first.

Question # 8

Identify two reasons why using external tables for high performance data loads on Exadata is more advantageous than SQL*Loader.

A.

Transformations can be applied directly on the file data using SQL or PL/SQLconstructions.

B.

External tables allow transparent parallelization inside the database.

C.

Parallelizing loads with external tables enables more efficient space management.

D.

External tables can take advantage of storage indexes to speed up data loads.

Question # 9

Identify two tasks that the Database Resource Manager can perform, which the I/O Resource Manager cannot.

A.

Manage I/O based on the application that is connected to the database.

B.

Manage the number of parallel sessions for a query.

C.

Manage I/O and CPU between databases on the same cluster or physical database host.

D.

Terminate database sessions when certain limits have been reached.

E.

Manage the throughput of an I/O-bound application based on the service name used for the connection.