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Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q49-Q54):

NEW QUESTION # 49
Which are two correct statements for managing virtual deployment using Oracle Exadata Deployment Assistant (OEDA)?

A. OEDA deployment steps include calibrate cells, create cell disks, and resecure machine.
B. There is no limit on the number of VMs in an Exadata rack as long as the Exadata rack has adequate resources.
C. OEDA allows customers to have both bare metal (BM) and virtual machine (VM) in an Exadata X9M Quarter Rack.
D. OEDA sets up key-based authentication for the root user by using the setuprootssh.sh utility included with OEDA.

Answer: C,D

Explanation:
Oracle Exadata Deployment Assistant (OEDA) enables customers to deploy Oracle Exadata Database Machine in virtualized environments and it support both bare metal and virtual machine deployment in an Exadata X9M Quarter Rack.
OEDA allows customers to have both bare metal (BM) and virtual machine (VM) in an Exadata X9M Quarter Rack, and it sets up key-based authentication for the root user by using the setuprootssh.sh utility included with OEDA. According to the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book [1][2], OEDA deployment steps include setup, configure, deploy, and manage. The number of VMs in an Exadata rack is limited by the available resources in the rack, such as CPU, Memory, and Storage.

NEW QUESTION # 50
What are two recommended configuration best practices for backup and recovery on Exadata?

A. The internal Recovery Appliance backup and restore processing is optimized when the RMAN FILESPERSET parameter is set to 1 for the level 1 incremental backup set.
B. When off-site long-term backup retention is needed, use Oracle Database Backup Cloud Service as a low-cost, offsite scalable storage for a disaster recovery solution.
C. Placing the backup network on dedicated switches installed in the top of the rack (ToR) has the benefits of isolating the backup network from other workloads and providing a greater level of control.
D. Even if the backup was limited to writing to four tape drives, eight channels could be specified to expedite the restore process.

Answer: A,D

NEW QUESTION # 51
You are providing oversight for the delivery of a new Exadata Database Machine.
1. Stabilize the Exadata Rack.
2. Unpack Oracle Exadata Rack.
3. Review the safety guidelines.
4. Let the Exadata acclimatize for 24 hours.
5. Power on Exadata PDU A.
6. Place Exadata in its allocated space.
7. Power on Exadata PDU B.
What is the correct order of these steps?

A. 2,6,1,4,3,7,5
B. 3,2,6,4,1,7,5
C. 4,3,2,6,1,7,5
D. 3,2,6,1,4,7,5
E. 2,3,4,6,1,7,5

Answer: B

Explanation:
The correct sequence is:
Review the safety guidelines. This is important to ensure a safe and successful installation1.
Unpack Oracle Exadata Rack. This involves removing the packaging materials and inspecting the rack for damage or missing components1.
Place Exadata in its allocated space. This involves moving the rack to its final location and securing it with bolts and brackets1.
Let the Exadata acclimatize for 24 hours. This is recommended to allow the rack components to adjust to the ambient temperature and humidity before powering on1.
Stabilize the Exadata Rack. This involves leveling the rack and adjusting its height if needed1.
Power on Exadata PDU B. This involves connecting PDU B to a power source and turning it on1.
Power on Exadata PDU A. This involves connecting PDU A to a power source and turning it on1

NEW QUESTION # 52
How do ASM failure groups provide redundancy?

A. They ensure that the ASM Flex instances are enabled on a maximum of two database servers or VMs per cluster.
B. Failure groups are created for each grid disk to ensure mirror copies are written to the same storage server for faster recovery after a physical disk failure.
C. Failure groups contain all ASM disks in a single storage server preventing mirror copies being written to the same storage server.
D. Extended Redundancy mirrors data across data centers providing the highest levels of data protection.

Answer: A

NEW QUESTION # 53
You want to monitor how a large production table is accessed. Especially, you are interested to see how the access on that particular table leverages the benefits of the Exadata Platform.
Which two actions are NOT appropriate for that purpose?

A. YOU query VSSYSTEM_EVENTS and filter for the event 'cell physical IO interconnect bytes returned by smart scan', associated to your table.
B. You query v$segment_statistics and filter for the Object ID of your table from dba_objects and the the column STATISTIC_NAME='optimized physical reads'.
C. You run the CellCli-command list activerequest , filtering for the attributes ioReason and objectNumber, that you specify as 'Smart Scan' and the Object ID of your table from DBA_OBJECTS.
D. You query v$SYSTAT and filter for the statistic 'cell smart table scan', associated to your table.

Answer: A,B

NEW QUESTION # 54
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