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Home > Oracle > Oracle Certifications > 1Z0-485
Oracle 1Z0-485  Exam Questions & Answers
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Oracle 1Z0-485 Exam Questions & Answers


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  • Vendor: Oracle

    Exam Code: 1Z0-485

    Exam Name: Oracle Exadata Database Machine

    Certification Provider: Oracle

    Total Questions: 71 Q&A

    Updated on: May 30, 2026

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1Z0-485 Online Practice Questions and Answers

Questions 1

You are asked to enable Write Back Flash Cache for one of your customers X3-2 Full Rack in a rolling fashion. Put the following steps in the right order:

A. Set flashCacheMode to writeback.

B. Inactivate all grid disks and shut down cellsrv.

C. Drop the Flash Cache.

D. Verify that cell for flashcacheMode is writeback.

E. Create the Flash Cache.

F. Start up cellsrv and activate all grid disks.

G. Check grdidksk asmdeactivationoutcome and asmmodestatus for all grid disks to ensure that all grid disks on all cells are set to Yes and online, respectively.

A. G. B, C, A, F, E, D, and G

B. G, A, B, C, F, E, D, and G

C. G, C, B, A, F, E, D, and G

D. G, E, C, B, F, A, D, and G

Show Answer

Correct Answer: C

Questions 2

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/SQL constructions.

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.

Show Answer

Correct Answer: C

Questions 3

You are calculating the storage capacity that your customer will require on their ZFS Backup Appliance. Identify the set of factors that will affect this calculation.

A. database size, full/incremental cycle, RPO (Recovery Point Objective), and RTO (Recovery Time Objective)

B. database size, retention period, RPO (Recovery Point Objective), and compression

C. database size, full/incremental cycle, compression, and retention period

D. database size, compression, and backup window

E. full/incremental cycle, retention period, and ZFS Backup Appliance model

Show Answer More Questions

Correct Answer: C

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