1Z0-338 Online Practice Questions and Answers

The Exadata architecture is divided into two specific tiers: the database tier and the storage tier. What protocol do these tiers use to communicate with each other?

A. iDB - Intelligent Database Protocol

B. InfiniBand protocol

C. Ethernet protocol

D. Secure Shell protocol

E. Fibre Channel protocol

Identify three customer options for hosting the Platinum Services Advanced Support Gateway. (Choose three.)

A. Purchase the recommended x86 64-Bit gateway hardware from Oracle.

B. Install in Oracle Virtual Machine with required hardware.

C. Install on Exadata Engineered System.

D. Provide individual x86 64-Bit gateway hardware.

E. Install on Oracle Database Appliance.

Which statement explains the difference between Normal and High redundancy ASM failure groups?

A. Normal redundancy protects the DATA diskgroup, whereas High redundancy protects the RECO diskgroup.

B. Normal redundancy (best practice) provides protection against two simultaneous disk failures, whereas High redundancy provides protection against a single disk failure or an entire storage server failure.

C. High redundancy gives more usable storage, whereas Normal redundancy provides better I/O performance.

D. Normal redundancy protects from disk failure when a cell is offline or being updated, whereas High redundancy protects the system when all the cells are offline.

E. Normal redundancy tolerates a single cell failure, whereas High redundancy tolerates a two-cell failure.

Which three configurations would you recommend to provide High Availability? (Choose three.)

A. enabling Flashback Technologies - for fast point-in-time recovery from logical corruptions and for fast reinstatement of a primary database following failover

B. configuring bonding for the management network in order to provide highest availability for the Data Guard network

C. using Normal redundancy diskgroups for all diskgroups where the primary database is protected by a Data Guard standby database that is deployed on the same Exadata Database Machine

D. when no Data Guard standby database is deployed, using High redundancy for both the RECO and DATA diskgroups

E. using Normal redundancy diskgroups for all diskgroups where the primary database is protected by a Data Guard standby database that is deployed on a separate Exadata Database Machine

F. when no Data Guard standby database is available, configuring Exadata as a stretched RAC

Which three features are unique to Exadata Storage? (Choose three.)

A. grid disks with default AU allocation sizes of 1 MB

B. usage of flash technology to cache recently used data

C. prioritization of disk I/Os based on the database

D. prioritization of OLTP I/Os over scan I/Os

E. database storage flash cache space allocation guarantees and limits

Your Exadata Cloud instance has been fully provisioned and you continue the setup by logging in to the newly created Virtual Machines (VMs) by using SSH.

Which two default usernames can be used to log in to the VMs? (Choose two.)

A. administrator

B. oracle

C. root

D. system

E. opc

Oracle ILOM is an embedded service processor in many Oracle Exadata Database Machine components.

What are three features provided by Oracle ILOM? (Choose three.)

A. secure access for lights out management of the database and storage servers

B. web-based, secure shell, IPMI, and SNMP access for out-of-band management

C. role-based security access to limit functions to individual user administration tasks

D. storage cell monitoring through the CeIICLI interface

E. listener access through the back-end management interface for MySQL and SQL Developer

Which three steps should you perform before executing the following command which will set the cell flash cache mode to write back? # cellcli -e alter cell flashcachemode=writeback

A. Inactivate all physical disks on the cell.

B. Shutdown the cellsrv services on the cell.

C. Disable the storage indexes on the cell.

D. Inactivate the grid disks on the cell.

E. Create a new flash cache on the cell.

F. Drop the existing flash cache on the cell.

Where would your customer go to find the latest Exadata patches?

A. My Oracle support for database patches, ULN for OS patches and SUN Support for servers and InfiniBand patches.

B. The Exadata owner guide.

C. The patch database in my Oracle support.

D. My Oracle Support note 888828.1.

E. The database machine in Exadata storage server 11g release 1 (11.1) supported version (Doc ID: 835032.1).

Which statement is true about High Availability (HA) in an Exadata environment?

A. When a standby database is in place, DB_BLOCK_CHECKINGis not required and thus is not recommended.

B. The checksums that are performed on the Exadata Storage Server ensure logical consistency of the block content.

C. Stretched RAC is the best alternative for Exadata that combines both HA and DR into one.

D. Due to the different architecture that Exadata has with storage servers when compared to regular Storage Area Network, DB_LOST_WRITE_PROTECTneed not be set.

E. The Oracle Exadata Storage Server Software HARD checks operate transparently after enabling DB_BLOCK_CHECKSUMon a database.