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QUESTION 36
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 in an Exadata environment is faster than an NFS mount system because of the Smart Scan performance gains.
B. Tens of thousands of files are the perfect use case for DBFS on Exadata.
C. DBFS offers tremendous I/O bandwidth.
Answer: B
QUESTION 37
What are the three customer options for hosting the Platinum Services Advanced Support Gateway?
A. Install on Exadata Engineered System.
B. Provide individual x86 64-Bit gateway hardware.
C. Install in Oracle Virtual Machine with required hardware.
D. Install on Oracle Database Appliance.
E. Purchase the recommended x86 64-Bit gateway hardware from Oracle.
Answer: BDE
Explanation:
Oracle provides a flexible model for deployment of the Oracle Advanced Support Gateway via no charge software that can be installed in three configurations:
1. On x86 customer provided servers.
2. On x86 servers purchased from Oracle.
3. Installed on Oracle Exalogic Elastic Cloud or Oracle SuperCluster systems.
Note:
Oracle Platinum Services provides enhanced support for high availability and performance to Oracle Premier Support customers running certified configurations of Oracle Exadata Database Machine, Oracle Exalogic Elastic Cloud, or Oracle SuperCluster, at no additional cost.
QUESTION 38
Which statement is true about Enterprise Manager 12c for Exadata?
A. EM Agents are installed on each database and storage node.
B. EM Agents should not be installed on Exadata. Remote monitoring is the best practice.
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. Storage cells communicate directly to the EM Management Server via SNMP and/or SMTP.
Answer: D
Explanation:
All the code required for monitoring the various Oracle Exadata hardware components has been bundled into the Oracle Exadata plug-in that is pushed to the agents running on the Oracle Exadata Compute (or Database) nodes. Once the plug-in is deployed on the compute nodes, the database machine is ready for discovery with Oracle Enterprise Manager.
Incorrect:
Not A: Since agents only run on the compute nodes it is important to assign specific agents to different Oracle Exadata components.
Not B: Oracle Exadata Discovery in Oracle Enterprise.
QUESTION 39
Identify two reasons why using external tables for high performance data loads on Exadata is more advantageous than SQL*Loader.
A. Transformations can be applied directly on the file data using SQL or PL/SQL constructions.
B. External tables allow transparent parallelization inside the database.
C. Parallelizing loads with external tables enables more efficient space management.
D. External tables can take advantage of storage indexes to speed up data loads.
Answer: AC
Explanation:
Parallelizing loads with external tables enables a more efficient space management compared to SQL*Loader, where each individual parallel loader is an independent database sessions with its own transaction.
QUESTION 40
A control file tracks the physical components of a database. It is the root file that the database uses to find all the other files used by the database. Because of the importance of the control file, Oracle recommends that the control file be ____.
A. size constrained, to prevent size overruns
B. multiplexed, or have multiple identical copies
C. stored on an HA USB Drive, to ensure that it does not get overwritten
D. managed by EM12c, to ensure proper maintenance
Answer: D
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