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1Z0-902 Valid Mock Exam - 1Z0-902 Latest Test Cram

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Both practice exams (web-based & desktop) give a Oracle 1Z0-902 real exam feeling and identify your mistakes so you can overcome your weaknesses before the 1Z0-902 final test. The desktop Oracle 1Z0-902 Practice Test software works on Windows after software installation. You can take the web-based Oracle Exadata Database Machine X8M Implementation Essentials 1Z0-902 practice exam via any operating system.

Oracle 1Z0-902 Certification Exam is designed to test the skills and knowledge required to implement and manage the Oracle Exadata Database Machine X8M. Oracle Exadata Database Machine X8M Implementation Essentials certification is targeted towards individuals who are involved in the implementation and management of Oracle Exadata Database Machine X8M, including database administrators, system administrators, and infrastructure architects.

Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q40-Q45):

NEW QUESTION # 40
Which two sections of the AWR report shows statistics for X9M Persistent Memory Cache?

A. PMEM Pool cache Read Hits in the Cache Sizes portion of the Report Summary
B. PMEM Cache section within Memory Statistics
C. cell PMEM cache Read Hits in the Database IOs portion of the Performance Summary
D. PMEM Pool Misses in the Exadata Outlier Summary
E. PMEM Cache section within Exadata Smart Statistics

Answer: B

NEW QUESTION # 41
Which dbmcli command is NOT valid on Exadata X9M?

A. dbmcli -e "LIST ALERTHISTORY WHERE agelnMinutes < 15"
B. dbmcli -e "LIST IBPORT DETAIL"
C. dbmcli -e "LIST METRICCURRENT WHERE name = 'DS_TEMP' "
D. dbmcli -e "LIST METRICHISTORY WHERE name LIKE 'DS_.*'"

Answer: B

Explanation:
The dbmcli -e "LIST IBPORT DETAIL" command is not valid on Exadata X9M. According to the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book [1][2], this command is only valid on Exadata X3 and X4 models. The other three commands are valid on Exadata X9M.
https://forums.oracle.com/ords/apexds/map/tech/apps-infra/discussion/4342715/monitoring-roce-performance

NEW QUESTION # 42
Which two statements are true about enabling write-back flash cache?

A. Before write-back flash cache is enabled, you need to drop the Flash Cache first.
B. Write-back Flash Cache cannot be used on Extreme Flash Storage Servers.
C. Write-back flash cache is on by default for High Capacity Storage Servers in High Redundancy configurations.
D. When enabling write-back flash cache in a non-rolling manner, you need to drop the Persistent Memory Commit Accelerator (PMEMLog) first.
E. When enabling write-back flash cache in a rolling manner, DBCLI should be used to inactivate the grid disks on all cells first.

Answer: D,E

Explanation:
When enabling write-back flash cache in a rolling manner, it is important to use DBCLI to inactivate the grid disks on all cells first so that all the cells are in the same state before the process is started. In a non-rolling manner, you must drop the Persistent Memory Commit Accelerator (PMEMLog) first. Write-back flash cache is not on by default for High Capacity Storage Servers in High Redundancy configurations and can be used on Extreme Flash Storage Servers. It's also important to check if it's necessary to drop the flash cache before enabling write-back flash cache.

NEW QUESTION # 43
Which dbmcli command is NOT valid on Exadata X9M?

A. dbmcli -e "LIST ALERTHISTORY WHERE agelnMinutes < 15"
B. dbmcli -e "LIST METRICHISTORY WHERE name LIKE 'DS_.*'"
B) dbmcli -e "LIST METRICCURRENT WHERE name = 'DS_TEMP' "
C. dbmcli -e "LIST IBPORT DETAIL"

Answer: A

NEW QUESTION # 44
Which statement is true about the patching features provided in Platinum Services?

A. Patching services are available for the full software stack up to twice per year.
B. The rolling and complete down time approaches are two options to patching.
C. Oracle Platinum Service covers Exadata storage software and firmware patching, but customers must perform the database patching.
D. Patching is done automatically during business hours.

Answer: A

Explanation:
Oracle Platinum Services provides patching features for the full software stack, which includes operating systems, virtualization, storage software and firmware, and databases. This service is typically performed up to twice per year, allowing customers to schedule the patching at their convenience. The patching is usually done to keep the software and firmware up-to-date and to fix any known security vulnerabilities. It's important to note that patching services are not done automatically during business hours, customer's involvement and schedule is needed, and the rolling and complete downtime approaches are options to minimize the impact on the system during patching.
The correct statement about the patching features provided in Platinum Services is that patching services are available for the full software stack up to twice per year. Oracle Platinum Service covers Exadata storage software and firmware patching, and customers must also perform the database patching. The rolling and complete down time approaches are two options for patching, and patching should be scheduled for times when the system is not being heavily used. Patching is not done automatically during business hours. This is covered in section 4.13 of the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book and Resources [1].
[1] https://docs.oracle.com/en/engineered-systems/exadata-database-machine/x9m/exad-implementing-database-machine-x9m.pdf Search results: [1] Oracle Exadata Storage Server Patching [1][2]. Oracle Exadata Storage Server patching is performed by a team of Oracle engineers [3][2], and includes the latest Oracle... [2] Patching and Upgrades. Oracle Database Machine provides automated patching and upgrades for the full Exadata software stack, up to twice a year, with... [3] Virtualized Exadata. Oracle Database Machine X9M-2 comes with a choice of two patching approaches to accommodate different customer needs: Rolling... [4] Jan 10, 2017 ... Exadata Patching Process. Oracle Exadata Storage Server patching is performed by a team of Oracle engineers [3][2], and includes the latest...

NEW QUESTION # 45
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