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What are the Key Features of the Oracle Exadata Database Machine X9M Implementation Essentials

The Oracle Exadata Database Machine X9M Implementation Essentials is a powerful database machine, which provides users with fast data retrieval. With it, users can analyze large amounts of data quickly, and store more information in less space. It also features a built-in Oracle Exadata Manager, which allows users to perform various functions such as installing and configuring software, managing the database, and configuring databases. Oracle 1Z0-902 exam dumps will save your money. The machine's performance is greatly improved by the use of a 64-bit architecture. It provides a lot of advantages, such as faster data retrieval and storage, and more RAM.

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

NEW QUESTION # 45
Which two sections of the AWR report shows statistics for X9M Persistent Memory Cache?

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

Answer: A,C Explanation:
The "cell PMEM cache Read Hits" in the "Database IOs" portion of the "Performance Summary" will show the number of reads that have been satisfied from the Persistent Memory Cache. The "PMEM Cache" section within "Memory Statistics" will give detailed information about the usage of the Persistent Memory Cache, such as cache size, used size, hit rate, etc. This information can help to identify if the Persistent Memory Cache is being used effectively and if there are any issues with it.
NEW QUESTION # 46
Which two Exadata security features would you configure to control which databases can access which griddisks, when multiple databases share space on your storage servers in an unpartitioned storage grid?

• A. Exadata storage realms using database-scoped security mode
• B. Using EXADCLI instead of CELLCLI to create the griddisks
• C. File permissions on the griddisks in each database server
• D. File permissions on the griddisks in each storage server
• E. Exadata storage realms using ASM-scoped security mode

Answer: B,D
NEW QUESTION # 47
You have a script with several CELLCLI commands that must be executed on each cell in your Exadata full rack. The script must run on each cell simultaneously. How must you achieve this?

• A. Copy and execute the script on all storage servers using the dcli command.
• B. Copy the script to all storage servers using the dcli command and manually execute it on all storage servers using the EXACLI command.
• C. Copy the script to all storage servers using the dcli command and manually execute it on each storage server using the DCLI command.
• D. Copy and execute the script on all storage servers using the EXACLI command.
• E. Copy the script to all storage servers using the CELLCLI command and execute it on all storage servers in parallel using the CELLCLI command.

Answer: A Explanation:
According to Oracle's documentation1, the Cell Control Command-Line Interface (CellCLI) utility is the command-line administration tool for Oracle Exadata System Software. It can be used to perform various tasks on Exadata Storage Servers, such as creating and managing objects, monitoring performance, and configuring alerts.
To run CELLCLI commands on multiple cells simultaneously, you can use the Distributed Command-Line Interface (dcli) utility2. The dcli utility allows you to execute commands or scripts on a group of cells or hosts in parallel. You can use the dcli utility to copy files from one cell or host to multiple cells or hosts using the -f option3. You can also use the dcli utility to execute commands or scripts on multiple cells or hosts using the -l option to specify a user name and the -g option to specify a file containing a list of cells or hosts3.
Therefore, to achieve your requirement of running a script with several CELLCLI commands on each cell in your Exadata full rack simultaneously, you must:
Copy and execute the script on all storage servers using the dcli command.
NEW QUESTION # 48
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. 3,2,6,1,4,7,5
• B. 2,6,1,4,3,7,5
• C. 4,3,2,6,1,7,5
• D. 2,3,4,6,1,7,5
• E. 3,2,6,4,1,7,5

Answer: D Explanation:
This ordering is based on the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book and other resources. First, the Exadata should be stabilized and unpacked (Steps 2 and 3). Then, the safety guidelines should be reviewed (Step 4). The Exadata should then be allowed to acclimatize for 24 hours (Step 4). After that, the Exadata PDU A should be powered on (Step 6) and the Exadata should be placed in its allocated space (Step 6). Finally, the Exadata PDU B should be powered on (Step 7).
NEW QUESTION # 49
Which dbmcli command is NOT valid on Exadata X9M?

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

Answer: C 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 # 50
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