1z0-485 무료 덤프문제 온라인 액세스

Your customer would like to use DBFS in their Exadata environment. They are asking you for the key characteristic of DBFS on Exadata.

• A.DBFS offers tremendous I/O bandwidth.
• B.DBFS in an Exadata environment is faster than an NFS mount system because of the Smart Scan performance gains.
• C.Tens of thousands of files are the perfect use case for DBFS on Exadata.

Which statement is true about Enterprise Manager 12c for Exadata?

• A.EM Agents should not be installed on Exadata. Remote monitoring is the best practice.
• B.Storage cells communicate directly to the EM Management Server via SNMP and/or SMTP.
• C.EM Agents can communicate to storage cells via SSH.
• D.The Exadata Plug-In for monitoring switches is installed in each EM Agent.
• E.EM Agents are installed on each database and storage node.

When would be the best time to run an Exadata health check (exachk)?

• A.only after a hardware failure
• B.only when advised by Oracle Support
• C.before patching, before upgrades, before backups, and on a regular basis
• D.monthly and after a hardware failure
• E.before and after patching, when advised by Oracle Support, andona regular basis
• F.after patching, after upgrades, and after backups

Which two statements are true about troubleshooting failed patching activities?

• A.Bundle patches applied using opatch auto cannot roll back only the database or the grid infrastructure home.
• B.Dependency issues found during yum updates require rolling back to a previous release before retrying.
• C.Dependency issues found during yum updates should be ignored using the force option.
• D.Failed OS patches on database servers can be rolled back.
• E.Database server OS updates can be rolled back using opatch auto -rollback.
• F.Failed storage cell patches are rolled back to the previous release automatically.

Which statement is true about Oracle compression?

• A.A non-partitioned table can use Advanced Compression and Hybrid Columnar Compression concurrently.
• B.A partitioned table can define the use of Advanced Compression or HybridColumnar Compression for each partition.
• C.A partitioned table can use only Advanced Compression or only Hybrid Columnar Compression.
• D.Hybrid Columnar Compression can be defined for a single column.