1z0-485 Oracle Exadata Database Machine 2014 Implementation Essentials Questions and Answers

Exadata automatically copies OS binaries and configuration files from another cell during patching to sync the internal USB.

Regular Exadata Storage Server patches make sure that the internal USB is updated so that it can be used for recovery.

Changes to network configuration files are possible without usingipconf.plas long as all relevant files are updated.

Some space from the CELLBOOT USB is used for cache metadata when write back flash cache is enabled.

Each patch that is performed on Exadata storage servers requires manual resync of the CELLBOOT USB.

X3-8 can be purchasedin a Half Rack configuration with 2 TB of memory.

X3-2 memory can be expanded to 512 GB per node from 256 GB.

X3-2 memory can be upgraded to use Flash in the compute nodes.

X3-8 memory is fixed at 4 TB per a Rack.

X3-2 can be purchased in a Half Rack configuration with 256 GB per node.

OLTP

ARCHIVE HIGH

QUERY HIGH

ARCHIVE LOW

BASIC

Transformations can be applied directly on the file data using SQL or PL/SQLconstructions.

External tables allow transparent parallelization inside the database.

Parallelizing loads with external tables enables more efficient space management.

External tables can take advantage of storage indexes to speed up data loads.

COMPRESS

COMPRESS BASIC

COMPRESS FOR OLTP

COMPRESS FOR QUERY

COMPRESS FOR ARCHIVE

size constrained, to prevent size overruns

multiplexed, or have multiple identical copies

stored on an HA USB Drive, to ensure that it does not get overwritten

managed by EM12c, to ensure proper maintenance

Using a CellCLI command, you can change the SNMP subscribers or add multiple SNMP subscribers.

Using CellCLI, you can stop and start the ASM instances that are using the grid disks on the Exadata storage cell.

With a simple CellCLI command, you can synchronize changes to all the storage cells in the Exadata realm.

Using a CellCLI command, you can see whether grid disksare being used by ASM or not.

You cannot use CellCLI to gather the serial numbers of physical disks.