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• Time Duration: 90 Minutes
• The passing score: 64%
• Languages: English
• Number of Questions: 60 Questions
• Formate: Multiple Choice

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Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q45-Q50):

NEW QUESTION # 45
You use Enterprise Manager to monitor all the components of your Exadata Database Machine.
Recently, you discovered that certain asmdisks were offline in one of the diskgroups used by the rac database called prod.
In which two sources would you find diagnostic messages related to this problem?

• A. Enterprise Manager Alerts on the ILOM home page for cell connectivity problems for the prod database instances
• B. Enterprise Manager Alerts on the Exadata Storage Server Grid home page
• C. alert logs for the prod database instances
• D. alert logs for the ASM instances
• E. alert logs for Enterprise Manager

Answer: A,B
NEW QUESTION # 46
Which three of the following options are available for database consolidation on Exadata?

• A. Multiple databases spanning a Bare Metal and Virtual Machine cluster to provide resource isolation and consolidation concurrently
• B. Multiple pluggable databases in one or more container databases on a Virtual Machine or Bare Metal cluster
• C. A single database with one or more schema per application
• D. Multiple Databases on a cluster
• E. Bare Metal deployment with one database per database server
• F. Multiple Virtual Machine clusters supporting a single database for greatest resource isolation

Answer: B,D,F
NEW QUESTION # 47
Which two statements are true about applying updates on Exadata systems?

• A. When running a "yum update" for a new Exadata release, all other repositories should be disabled.
• B. Failed storage server updates are automatically rolled back to a previous release.
• C. Updating kernel and RDMA packages on storage cells should be prevented by excluding them with the yum -exclude option.
• D. Failed database server updates are rolled back to a working state on a previous release automatically.
• E. To speed up applying storage server updates in a rolling manner, updating two storage servers simultaneously is recommended.
• F. For regular Exadata updates, yum automatically installs a non-UEK kernel, which can be selected to boot from grub.

Answer: B,F Explanation:
1. Exadata updates have a rollback feature in case the update fails, this means that the system will roll back to a previous release automatically, this applies to storage servers updates. D. Yum, the package manager used in Exadata, automatically installs a non-UEK kernel when running a regular update, this kernel can be selected to boot from grub.
NEW QUESTION # 48
I/O performance of the prod database on your Exadata Database Machine has degraded slightly over the past month. The database has been allocated to the OLTP I/O Resource Management (IORM) category.
Which two monitoring tools might be useful in examining I/O performance for the prod database?

• A. cellcli (or exacli/exadcli) to examine storage server metrics such as database, category, ceiidisk, and griddisk
• B. OS I/O metrics using OS tools such as iostat on the database servers
• C. OS I/O metrics using Enterprise Manager host pages for the storage servers
• D. OS I/O metrics using OS tools such as iostat on the storage servers
• E. I/O-specific dynamic performance views such as v$iostatfiie, v$iostatfunction, and v$iostatconsumergroup from the prod
  database instances using SQL *p1us

Answer: A,B
NEW QUESTION # 49
Examine these commands:
1. Execute "crscti stop cluster -all" as the grid user from one database server.
2. Execute "crscti stop cluster -all" as root from one database server.
3. Power off all network switches.
4. Execute "crscti stop cluster" as root from one database server.
5. Execute "crscti stop cluster" as the grid user from one database server.
6. Power off the rack using the power switches on the PDUs.
7. Execute "shutdown -h now" on all database servers.
8. Execute "shutdown -h now" on all Exadata storage servers.
Which is the correct order or the required commands to completely power off an Exadata Database Machine in an orderly fashion?

• A. 2, 7, 8, and 6
• B. 1, 8, 7, 3 and 6
• C. 2, 8, 7, 3, and 6
• D. 4, 7, 8, 3, and 6
• E. 5, 8, 7, and 6

Answer: B Explanation:
In order to power off an Exadata Database Machine in an orderly fashion, the commands should be executed in the following order: 1) Execute "crscti stop cluster -all" as the grid user from one database server; 2) Execute "shutdown -h now" on all database servers; 3) Power off all network switches; 4) Execute "shutdown -h now" on all Exadata storage servers; and 5) Power off the rack using the power switches on the PDUs. This sequence of commands ensures that all services running on the Exadata Database Machine are in a clean state before powering off the system. (Source: Oracle Exadata Database Machine X9M Implementation Essentials, page 543)
NEW QUESTION # 50
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