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1z0-902 Questions and Answers

Question # 6

Examine these commands:

1. Execute "crscti stop cluster -all" as the grid user from one database server.

2. Execute "crscti stop cluster -all" as root from one database server.

3. Power off all network switches.

4. Execute "crscti stop cluster" as root from one database server.

5. Execute "crscti stop cluster" as the grid user from one database server.

6. Power off the rack using the power switches on the PDUs.

7. Execute "shutdown -h now" on all database servers.

8. Execute "shutdown -h now" on all Exadata storage servers.

Which is the correct order or the required commands to completely power off an Exadata Database Machine in an orderly fashion?

A.

5, 8, 7, and 6

B.

4, 7, 8, 3, and 6

C.

2, 8, 7, 3, and 6

D.

2, 7, 8, and 6

E.

1, 8, 7, 3 and 6

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Question # 7

Which two statements are true about applying updates on Exadata systems?

A.

Failed storage server updates are automatically rolled back to a previous release.

B.

To speed up applying storage server updates in a rolling manner, updating two storage servers simultaneously is recommended.

C.

Updating kernel and RDMA packages on storage cells should be prevented by excluding them with the yum —exclude option.

D.

For regular Exadata updates, yum automatically installs a non-UEK kernel, which can be selected to boot from grub.

E.

Failed database server updates are rolled back to a working state on a previous release automatically.

F.

When running a "yum update" for a new Exadata release, all other repositories should be disabled.

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Question # 8

Which are three customer options for hosting the Platinum Services Advanced Support Gateway?

A.

Install on Oracle Database Appliance.

B.

Provide individual x86 64-Bit gateway hardware.

C.

Install in Oracle Virtual Machine with required hardware.

D.

Purchase the recommended x86 64-Bit gateway hardware from Oracle.

E.

Install on Exadata Engineered System.

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Question # 9

How do ASM failure groups provide redundancy?

A.

Failure groups are created for each grid disk to ensure mirror copies are written to the same storage server for faster recovery after a physical disk failure.

B.

Failure groups contain all ASM disks in a single storage server preventing mirror copies being written to the same storage server.

C.

They ensure that the ASM Flex instances are enabled on a maximum of two database servers or VMs per cluster.

D.

Extended Redundancy mirrors data across data centers providing the highest levels of data protection.

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