FREE ORACLE 1Z1-902 QUESTIONS

Free Oracle 1z1-902 Questions

Free Oracle 1z1-902 Questions

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Oracle 1Z0-902, also known as the Oracle Exadata Database Machine X8M Implementation Essentials Exam, is a certification exam that is designed to test the knowledge and skills of IT professionals in implementing and managing Oracle Exadata Database Machine X8M systems. 1z1-902 Exam is intended for individuals who have experience in implementing and managing Oracle Exadata systems, including database administrators and system administrators. 1z1-902 exam covers a wide range of topics, including Exadata architecture, installation and configuration, administration and maintenance, backup and recovery, performance tuning, and security.

Oracle Exadata Database Machine X8M is a high-performance, scalable database machine that is designed to meet the needs of large and complex data processing environments. The machine is built on a powerful hardware platform that includes the latest technologies, such as Intel Xeon processors, high-speed InfiniBand networking, and flash storage.

Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q85-Q90):

NEW QUESTION # 85
You have been asked to design a backup solution for an Exadata X9M-2 Quarter Rack with Extreme Flash Storage Servers connected to a new ZFS Storage Appliance ZS7 with 2 Storage Controllers with 100Gb Ethernet cards and 3 Storage Trays. You are using Oracle Exadata Configuration Assistant to validate the rack layout.
1. Use "Add Equipment" to add the Exadata X9M EF Storage Servers, starting from RU10.
2. Use drop down to add ZFS Storage Appliance Controllers.
3. You cannot add ZFS Storage Appliance to an Exadata Rack.
4. Use "Add Equipment" to add the ZFS Storage Trays, starting from RU1.
5. Use drop down to add ZFS Storage Trays.
6. Use "Add Equipment" to add the Exadata X9M Database Servers, starting from RU16.
7. Use "Add Equipment" to add the Exadata X9M EF Storage Servers, starting from RU1.
8. Use drop down to add Exadata X9M EF Storage Servers.
9. Use "Add Equipment" to add the ZFS Storage Controllers, starting from RU27.
10. Use drop down to add Exadata X9M Database Servers.
11. Use "Add Equipment" to add the ZFS Storage Trays, starting from RU31.
Which of these steps are correct and what is their correct order?

  • A. 10, 8, 9, 11
  • B. 10, 8, 2, 5
  • C. 0
  • D. 7,6,9,11
  • E. 44, 6, 9

Answer: A


NEW QUESTION # 86
Which three statements are true about the CELLCLI command?

  • A. It can be executed on storage servers.
  • B. It can be executed using the DCLI utility.
  • C. It can execute commands on multiple storage servers in parallel.
  • D. It requires root privileges to create CELLDISKS and GRIDDISKS.
  • E. It has command-line history.

Answer: B,C,E

Explanation:
The CELLCLI utility is a command line interface to Exadata that enables the execution of commands across multiple storage servers in parallel. It also has command-line history, so users can easily recall previously entered commands. Furthermore, the CELLCLI utility can be executed using the DCLI utility, which provides a convenient way to execute commands on multiple storage servers simultaneously.
However, CELLCLI does not require root privileges to create CELLDISKS and GRIDDISKS, and it cannot be executed on storage servers. This is because CELLCLI is used to manage the Exadata database machine from the database server [1]. For more information about CELLCLI, refer to the Oracle Exadata Database Machine X9M Implementation Essentials official text book and resources [1][2].


NEW QUESTION # 87
Which are two valid reasons for executing an X9M-2 Exadata storage server rescue procedure?

  • A. corruption in a normal or high redundancy ASM diskgroup
  • B. accidental loss of all data from all griddisks in a storage server
  • C. the failure of physical disk 0 and 11
  • D. moving all disks from one cell to another as part of a chassis-level component failure
  • E. the failure of both physical M.2 disks
  • F. the failure of physical disk 1
  • G. corruption in the / (root) filesystem

Answer: C,G

Explanation:
The rescue procedure is necessary when system disks fail, the operating system has a corrupt file system, or there was damage to the boot area. If only one system disk fails, then use CellCLI commands to recover. In the rare event that both system disks fail simultaneously, you must use the Exadata Storage Server rescue functionality provided on the Oracle Exadata Storage Server Software CELLBOOT USB flash drive.


NEW QUESTION # 88
Where should your customer go to find the latest Exadata updates?

  • A. the patch database in MyOracle Support
  • B. MyOracle Support note Exadata Database Machine and Exadata Storage Server Supported Versions (Doc ID - 888828.1)
  • C. MyOracle Support for database and server updates, ULN for OS updates, and Cisco for RDMA over Converged Ethernet (RoCE) switch updates
  • D. the Exadata System Software User's Guide Appendix A - Upgrading Oracle Exadata System Software

Answer: B

Explanation:
To access the latest updates for Exadata, customers should refer to MyOracle Support, specifically the support document titled Exadata Database Machine and Exadata Storage Server Supported Versions (Doc ID 888828.1). This document contains detailed information on the current versions, patches, and updates available for Exadata systems. It also provides guidance on compatibility, end-of-life details, and any critical updates that may impact the operation of Exadata Database Machines.


NEW QUESTION # 89
You want to examine how much Smart Scan activity is occurring.
Which two would provide the information you require?

  • A. the number of Smart Scans performed for the table on all the storage servers, as shown when performing a list ACTIVEREQUEST command using EXACLI on all the cells
  • B. the number of Smart Scans performed for the table on all the storage servers, as shown when performing a list activerequest command using CELLCLI on all the cells
  • C. the number of serial queries that accessed the table
  • D. the number of full table scans that accessed the table
  • E. the number of parallel queries that accessed the table

Answer: A,B

Explanation:
To determine the amount of Smart Scan activity on an Exadata Database Machine, you can access two specific commands:
CELLCLI Command: Using the list activerequest command within CELLCLI on all storage cells will show the number of Smart Scans being processed. CELLCLI is an interface specific to Exadata Storage Servers for management and monitoring, and it provides real-time visibility into ongoing Smart Scan operations .
EXACLI Command: Similarly, the list ACTIVEREQUEST command using EXACLI on all storage cells also lists the Smart Scans executed across the storage servers. EXACLI is a remote command-line utility that can be run from a database server to manage storage cells, offering convenient access to similar Smart Scan information .


NEW QUESTION # 90
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