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  5. Oracle Exadata Database Machine 2014 Implementation Essentials Questions and Answers
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1z0-485 Oracle Exadata Database Machine 2014 Implementation Essentials Questions and Answers

Questions 4

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

Options:

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.

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Questions 5

Consider the following software changes that are performed manually on a Linux server:

1. Changes for Linux kernel firewall configuration

2. Changes for custom performance monitoring tools

3. Changes for security scan tools

4. Changes for Linux system performance optimization

Which of the software changes listed are permitted on Exadata Storage Servers?

Options:

A.

1, 2, 3, and 4

B.

only 3 '

C.

none

D.

only 2

E.

only 1 and 2

F.

only 2 and 3

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Questions 6

After migrating from legacy disk-based configuration, which three approaches would you use to evaluate the efficiency of Exadata Flash Cache?

Options:

A.

Review the Flash Hit rate via cellcli metrics.

B.

Compare Optimized Physical Reads and Total Read Requests in Automatic Workload Repository (AWR).

C.

Review the IOSTAT data that is gathered from each compute node by OS Watcher.

D.

Evaluate the Smart Flash Logging efficiency metrics via CellCLI.

E.

Check I/O latency on large I/O to Temp in AWR.

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Questions 7

You are concerned about how recovery from a failed Exadata Storage Server would work. Which statement is true about the Exadata CELLBOOT USB?

Options:

A.

Exadata automatically copies OS binaries and configuration files from another cell during patching to sync the internal USB.

B.

Regular Exadata Storage Server patches make sure that the internal USB is updated so that it can be used for recovery.

C.

Changes to network configuration files are possible without usingipconf.plas long as all relevant files are updated.

D.

Some space from the CELLBOOT USB is used for cache metadata when write back flash cache is enabled.

E.

Each patch that is performed on Exadata storage servers requires manual resync of the CELLBOOT USB.

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Questions 8

Identify four significant changes when a backup of Exadata compute nodes must be performed.

Options:

A.

application of operating system patches

B.

before shutdown to preserve storage indexes

C.

application of Oracle patches

D.

reconfiguration of significant operating system parameters

E.

installation or reconfiguration of significant non-Oracle software

F.

storage server rebalancing

G.

addition of an Exadata storage expansion rack

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Questions 9

Identify the three values to which the cell_flash_cache attribute can be set.

Options:

A.

read

B.

WRITE

C.

KEEP

D.

DEFAULT

E.

NONE

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Questions 10

Which is the best location to point your customer to, for finding the latest Exadata patches?

Options:

A.

owner's guide

B.

Patch database in MyOracle Support

C.

MyOracle Support note 888828.1

D.

MyOracle Supportfor database patches, ULN for OS patches, and Sun Support for Server and InfiniBand patches.

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Exam Code: 1z0-485
Exam Name: Oracle Exadata Database Machine 2014 Implementation Essentials
Last Update: Nov 23, 2024
Questions: 71