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1z0-902 Exam Dumps : Oracle Exadata Database Machine X9M Implementation Essentials

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Oracle Exadata Database Machine X9M Implementation Essentials Questions and Answers

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Question 1

Which statement is true about the Persistent Memory Commit Accelerator?

Options:

A.

Persistent Memory Commit Accelerator tracks changes to Persistent Memory Data Accelerator to ensure duplicate blocks are not written to Flash.

B.

Persistent Memory Commit Accelerator helps to further reduce redo log write latency by using Persistent Memory and Remote Direct Memory Access (RDMA).

C.

Persistent Memory Commit Accelerator copies redo log data from disk for faster redo apply on Data Guard Standby Databases.

D.

Persistent Memory Commit Accelerator contains logging information from all tiers of the software stack for rapid triage and diagnostics.

E.

Persistent Memory Commit Accelerator reduces redo log write latency by using Persistent Memory and RDMA before flushing to Flash then disk.

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Question 2

An Exadata storage server physical disk on an X9M-2 high-capacity full rack entered the predictive failure state. Which two steps must you perform to replace this failed physical disk?

Options:

A.

Replace the failed physical disk.

B.

Add the griddisks back into the ASM diskgroup they used to be a member of.

C.

Identify the griddisks located on the failed physical disk and drop them from the associated ASM diskgroups.

D.

Rebalance the data on the effected griddisks before performing a manual drop command.

E.

Create a new celldisk and new griddisks on the replaced physical disk.

F.

Verify that the griddisks located on the physical disk have been successfully dropped from the associated ASM diskgroups.

Question 3

You are in the process of upgrading your nonvirtualized X9M-2 Database Machine elastic configuration with 4 database servers and 7 HC storage servers with an additional 4 database servers and 7 HC storage servers.

The new storage servers are called DM01CEL08 through dmoicel14.

After creating 96 new griddisks, you issued this SQL statement:

How many failgroups if any, will be added to the DATE diskgroup by executing this SQL statement?

Options:

A.

1 consisting of all 96 griddisks

B.

96 consisting of one griddisk each

C.

0 because the new griddisks will be added to the existing faiigroups

D.

12 consisting of seven griddisks each

E.

7 consisting of 12 griddisks each

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