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Question 1:
Which two options would you use to allow direct path loads to run in parallel on your Exadata platform? (Choose two.)
A. creating the required environment by using Smart Scan parallelization
B. setting the initialization parameter PARALLEL_ENABLED to TRUE to enable parallel direct path loads
C. setting the PARALLEL clause on both the external table and the table where you are loading the data
D. adding the PARALLEL hint to the CTAS or IAS statement
E. setting the PARALLEL_FORCE_LOCAL parameter to TRUE
Correct Answer: CD
Question 2:
You notice that a database node has hung, so you open a Service Request via My Oracle Support. What diagnostic output will you send to My Oracle Support by default?
A. pkginfo
B. oswatcher
C. AWR
D. v$sessionoutput
E. list of database users
Correct Answer: C
Question 3:
Which statement is true about Exadata Storage Servers?
A. Exadata Storage Servers automatically delete old diagnostic and metric files.
B. Exadata requires a running database instance on all storage servers and database servers.
C. Redundancy for the user data that is stored in a database that is running on Exadata is achieved with RAID5.
D. Communication between a database and an Exadata storage flows over low latency 10 Gigabit Ethernet.
E. Exadata uses network affinity to determine which storage server data is written.
Correct Answer: A
Question 4:
Which three items are the main elements of Oracle Database Resource Manager? (Choose three.)
A. SQL Explain Plan
B. resource plan
C. resource consumer group
D. resource plan directive
E. IORMPLAN object
Correct Answer: BCD
Reference: https://docs.oracle.com/cd/B28359_01/server.111/b28310/dbrm001.htm#ADMIN11844
Question 5:
Which two statements are true about troubleshooting failed patching activities? (Choose two.)
A. Dependency issues found during yum updates should be ignored by using the force option.
B. Failed storage cell patches are rolled back to the previous release automatically.
C. Failed OS patches on database servers can be rolled back.
D. Dependency issues that are found during yum updates require rolling back to a previous release before retrying.
E. Bundle patches applied by using opatch autocannot roll back only the database or the grid infrastructure home.
F. Database server OS updates can be rolled back by using opatch auto -rollback.
Correct Answer: AF
Reference: http://www.toadworld.com/platforms/oracle/w/wiki/11500.managing-troubleshooting-exadatapart-1-upgrading-patching-exadata
Question 6:
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
Correct Answer: A
Reference: https://docs.oracle.com/cd/E50790_01/doc/doc.121/e50471/concepts.htm#SAGUG20333
Question 7:
Your customer needs to ensure that their data is available on the Exadata machine during patches. The customer wants to be able to patch one server at a time but still be protected against single-node server failure.
What ASM redundancy level should they use?
A. High
B. Normal
C. External
D. Extreme
E. Standard
Correct Answer: B
Reference: http://www.oracle.com/technetwork/database/exadata/maa-exadata-asm-cloud-3656632.pdf (page 7)
Question 8:
In which three ways can customers access the ILOM interface to manage the Exadata database and storage server hardware components? (Choose three.)
A. ILOM CLI interface through the management network
B. ILOM Web interface through the management network
C. remote KVM session to the ILOM
D. from the database server operating system tool “ilomcli”
E. from the storage server operating system tool “ilomcli”
Correct Answer: BCE
Question 9:
Your customer is implementing a storage consolidation strategy on their existing Exadata.
Which step represents the Oracle recommended action that the customer should take in their approach?
A. Do not use IORM because it will interfere with the shared database functionality on Exadata.
B. Use ASM to create separate diskgroups for each database instance that is running on Exadata.
C. Use IORM to distribute disk bandwidth among the databases.
D. Set up Oracle Grid Infrastructure to use multiple clusters per hardware pool.
E. Set up a resource consumer group within each database instance and manage it individually.
Correct Answer: C
Reference: http://www.oracle.com/technetwork/topics/cloud/whatsnew/mixedworkloadmgmtexadata300345.pdf page 42
Question 10:
How does Advanced Compression differ from Hybrid Columnar Compression?
A. Advanced Compression is free to use on Exadata Database Machine, whereas Hybrid Columnar Compression must be purchased.
B. They are the same; Advanced Compression is called Hybrid Columnar Compression on Exadata Database Machine.
C. Hybrid Columnar Compression is good for tables with active updates and deletes, and provides deeper compression ratios.
D. Advanced Compression is good for tables with active updates and deletes, whereas Hybrid Columnar Compression is best applied to tables or partitions where data is fairly static.
Correct Answer: D
Question 11:
The Exadata compute node, exadbs04, has been having issues for some time. The server had to be repaired and you just received a new server. Your LVM snapshot was corrupt and now the compute node must be re-imaged with an Oracle Support installation image.
Which three tasks must be performed in order to re-image the compute node? (Choose three.)
A. Create a CELLBOOT USB Flash Drive by using an external USB drive.
B. Mount the LVM backup image across the network and recover the system.
C. Remove exadbs04 from the RAC cluster and all associated Oracle Homes from the central inventory.
D. Reboot the new server by using a bootable recovery image from the external USB drive.
E. Reconfigure all site-specific settings (host name, IP addresses, NTP server, and so on).
Correct Answer: CDE
Question 12:
Which statement is true about instance caging setup?
A. The initialization parameter resource_manager_planshould be set.
B. For a system with 16 threads, the sum of cpu_count for all databases should not be higher than 32 to prevent oversubscribing.
C. Database instances need to be restarted to make changes to cpu_counteffective.
D. The CPU Resource Manager and IORM need to be enabled to make instance caging to work as expected.
E. Instance caging is the right approach to make sure that database instances are not stealin memory from one another.
Correct Answer: A
Reference: http://www.oracle.com/technetwork/database/performance/instance-caging-wp-166854.pdf
Question 13:
Which three tools can be used on a freshly re-imaged Exadata system to create, resize, or delete ACFS filesystems? (Choose three.)
A. SQL*Plus and ASMCMD
B. ASMCA
C. Enterprise Manager Express
D. Enterprise Manager Cloud Control
E. RMAN
F. OUI
Correct Answer: ABC
Reference: https://dbasolutions.wikispaces.com/ACFS on Linux
Question 14:
There are many different ways to load data into database tables.
Which method does Oracle strongly recommend?
A. generic connectivity via ODBC or JDBC
B. database gateways to open systems and mainframes
C. Oracle GoldenGate
D. Oracle Data Pump
E. SQL*Loader import
F. data loading via external tables
Correct Answer: F
Question 15:
Which options does not benefit from storage offload processing?
A. indexes that rely on B-Tree pointers
B. column filtering
C. joins and aggregation
D. table scans
E. incremental backups with block change tracking
Correct Answer: A
Reference: https://www.pythian.com/blog/exadata-join-offloading-in-action/
