Online Access Free 1z0-485 Exam Questions

In looking to improve query performance for your Data Warehouse, select the best way that Exadata's Flash Cache feature can be leveraged?

• A.Create an ASM diskgroup on Flash Cache and move the indexes from disk to Flash.
• B.Execute alter table ... cell_flash_cache=keep on heavily scanned tables.
• C.Enable Write Back Flash Cache.
• D.Enable Smart Flash Log.

What are two impacts of selecting high redundancy over normal redundancy for your diskgroups?

• A.Normal redundancy provides more usable storage.
• B.High redundancy provides more usable storage.
• C.Normal redundancy provides HA during rolling Storage Server patching.
• D.High redundancy provides High Availability (HA) during disk failure and rolling Storage Server patching
• E.High redundancy gives you better I/O performance.

Why is ASM High redundancy an important configuration choice when rolling Exadata Storage Server patching is planned?

• A.High redundancy speeds up ASM fast mirror resync when a cell is brought back online after patching.
• B.Normal redundancy provides the same protection during rolling patching, so High redundancy is not important inthis case
• C.High redundancy protects from partner disk failure while a cell is offline being updated.
• D.High redundancy forces ASM rebalance before allowing disks to be taken offline.

Identify the correct steps required to upgrade a 1/8th rack of Exadata to a 1/4th rack.

• A.Remove the doors of the 1/8th rack.
  Add the new servers.
  Cable the Database Servers in the rack.
  Cable the Exadata Storage Servers in the rack.
  Close the rack.
• B.Remove the doors of the 1/8th rack.
  Add an additional Sun Datacenter InfiniBand Switch.
  Add the new servers.
  Cable the Database Servers in the rack.
  Cable the Exadata Storage Servers in the rack.
  Close the rack.
  Configure the new hardware.
• C.Activate all cores by using a software command.
  Activate all hard drives and flash drives.
  Create the grid disks.
  Expand the Oracle ASM diskgroups.
  Review the new configuration.
• D.Activate all cores by using a software command.
  Activate all hard drives and flash drives.

CORRECT TEXT
Which two statements are true about migrating your database to Exadata?
A) Because Exadata uses InfiniBand, in order to migrate your database to Exadata, you must have InfiniBand on the system that you are migrating from.
B) Using Data Guard Physical Standby to migrate from an 11.1 database to Exadata is beneficial because it allows you to adopt HCC during migration.
C) ASM and database best practice configuration supplied during Exadata deployment should be retained during and after migration,
D) Logical migration methods allow more flexibility than physical methods to change the database structure for best performance.
E) All indexes should be dropped when migrating to Exadata.