Oracle 1z0-485 問題集

質問 1：
You are concerned about how recovery from a failed Exadata Storage Server would work. Which statement is true about the Exadata CELLBOOT USB?
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. Each patch that is performed on Exadata storage servers requires manual resync of the CELLBOOT USB.
D. Changes to network configuration files are possible without usingipconf.plas long as all relevant files are updated.
E. Some space from the CELLBOOT USB is used for cache metadata when write back flash cache is enabled.
正解：A,D
解説: (Topexam メンバーにのみ表示されます)

質問 2：
Which two statements are true about Exadata memory capabilities?
A. X3-8 memory is fixed at 4 TB per a Rack.
B. X3-2 memory can be upgraded to use Flash in the compute nodes.
C. X3-2 memory can be expanded to 512 GB per node from 256 G
D. X3-8 can be purchased in a Half Rack configuration with 2 TB of memory.
E. X3-2 can be purchased in a Half Rack configuration with 256 GB per node.
正解：A,E
解説: (Topexam メンバーにのみ表示されます)

質問 3：
When should you use Hybrid Columnar Compression?
A. on every table where Advanced Compression is not used
B. always
C. on large active tables where deeper compression is desired
D. on tables or partitions that have fairly static data
正解：D
解説: (Topexam メンバーにのみ表示されます)

質問 4：
Which two statements are true about troubleshooting failed patching activities?
A. Database server OS updates can be rolled back using opatch auto -rollback.
B. Failed OS patches on database servers can be rolled back.
C. Bundle patches applied using opatch auto cannot roll back only the database or the grid infrastructure home.
D. Dependency issues found during yum updates should be ignored using the force option.
E. Failed storage cell patches are rolled back to the previous release automatically.
F. Dependency issues found during yum updates require rolling back to a previous release before retrying.
正解：A,F
解説: (Topexam メンバーにのみ表示されます)

質問 5：
What are two choices that a customer must make that impact diskgroup creation?
A. How many databases will run on the cluster?
B. Where will disk backups be written?
C. What OS will be run?
D. What is the level of redundancy required?
正解：C,D
解説: (Topexam メンバーにのみ表示されます)

質問 6：
Which Exadata feature eliminates unnecessary data transfers between database nodes and storage?
A. InfiniBand networking
B. database views
C. Flash Cache
D. high performance SAS2 disk drives
E. cell offloading
正解：C
解説: (Topexam メンバーにのみ表示されます)

質問 7：
Which two statements are true about enabling write-back flash cache?
A. Before using write-back flash cache, you need to verify the minimum required versions.
B. Before write back-flash cache is enabled, you need to drop the Flash Cache first.
C. When enabling write-back flash cache in a rolling manner, dcli should be used to inactivate the grid disks on all cells first.
D. The setting flashCacheMode should be set to writeback by updating cellinit.ora and restarting cellsrv.
E. When enabling write-back flash cache in a non rolling manner, it is important to ensure that asmdeactivatonoutcome is set to YES and asmModestatus is set to ONLINE for all grid disks.
正解：A,B
解説: (Topexam メンバーにのみ表示されます)