Oracle 1Z0-902 Certification Sample Questions and Answers

The Oracle Exadata Database Machine X9M Implementation Essentials (1Z0-902) Sample Question Set is designed to help you prepare for the Oracle Exadata Database Machine X9M Certified Implementation Specialist certification exam. To become familiar with the actual Oracle Certification exam environment, we suggest you try our Sample Oracle 1Z0-902 Certification Practice Exam.

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Oracle 1Z0-902 Sample Questions:

01. How do ASM failure groups provide redundancy?
a) 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
b) Extended Redundancy mirrors data across data centers providing the highest levels of data protection
c) Failure groups contain all ASM disks in a single storage server preventing mirror copies being written to the same storage server.
d) They ensure that the ASM Flex instances are enabled on a maximum of two database servers or VMs per cluster.

02. Which three statements are true about the CELLCLI command?
a) It can execute commands on multiple storage servers in parallel.
b) It has command-line history.
c) It requires root privileges to create CELLDISKS and GRIDDISKS.
d) It can be executed on storage servers.
e) It can be executed using the DCLI utility.

03. An Exadata X9M-2 Elastic Rack with 4 Database Servers and 8 HC Storage Servers and 3-phase 24kVA PDUs is being installed in a Data Center.
However, the Data Center is only providing enough power for a single cable from each PDU. Which statement is correct?
a) A splitter cable can be used to provide power to all PDU cables.
b) The installation cannot proceed until two power feeds are available per PDU.
c) The power cables from the servers to the PDUs can be rearranged inside the rack following OECA guidance to utilize a single PDU power cable.
d) The installation can go ahead, no change is required.

04. You have been asked by Oracle Support to check the firmware of the hard & flash disks in a storage server. Which cellcli command should you use to get this information?
a) list cell attributes name, deviceName, diskType, physicalFirmwar
b) list celldisk attributes name, deviceName, diskType, physicalFirmware
c) list physicaldisk attributes name, deviceName, diskType, physicalFirmware
d) list devices attributes name, deviceName, diskType, physicalFirmware

05. Which two statements are false about backup to ZFS Storage Appliance (ZFSSA)?
a) ZFSSA may connect directly to the Exadata 100Gb ROCE network switches.
b) Top of Rack (TOR) switches are managed as part of the hardware stack and software levels are upgraded during the patching process.
c) When backing up multi-rack systems, sharing Exadata X9M switches is recommended.
d) ZFS Snapshots can provide rapid cloning of development and test environment.

06. Examine this list of software components:
1. Oracle KVM Guest
2. Oracle Enterprise Manager Agent (OMA)
3. ASM instance
4. RDBMS instance
5. Automatic Diagnostic Repository Command Interpreter (ADRCI)
6. CELLCLI
7. Cell Server(CELLSRV)
8. diskmon
9. Restart Server (RS)
10. Management Server (MS)
What is the correct location where these software components can run in the standard Exadata Database Machine deployment?
a) 1, 2, 3, 4, 5, 8, 9 and 10 run on the database servers; 5, 6,7, 9 and 10 run on the Exadata storage servers.
b) 2, 3, 4, 8, and 10 run on the database servers; 1, 5, 6, 7and 9 run on the Exadata storage servers.
c) 3, 4, 8, and 10 run on the database servers; 1, 2, 5, 6, 7 and 9 run on the Exadata storage servers.
d) 1, 2, 3, 4, 8 and 9 run on the database servers; 5, 6, 7, 9 and 10 run on the Exadata storage servers.
e) 1, 2, 3, 4, 9 and 10 run on the database servers; 5, 6, 7, 8, 9, and 10 run on the Exadata storage servers.

07. You are working on a remote Exadata Database Machine with current software and firmware. You now need to start a storage server after hardware maintenance.
Which ILOM command starts the storage server?
a) -> start /SP/console
b) -> set /SYS power_state=ON
c) -> start /System
d) You must be physically present in the data center to start an Exadata Storage Server.
e) -> start /SYSTEM/power
f) -> start /SYS/power

08. 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) OS I/O metrics using OS tools such as iostat on the storage servers
b) OS I/O metrics using OS tools such as iostat on the database servers
c) I/O-specific dynamic performance views such as v$iostat_fiie, v$iostat_function, and v$iostat_consumer_group from the prod database instances using SQL *p1us
d) OS I/O metrics using Enterprise Manager host pages for the storage servers
e) cellcli (or exacli/exadcli) to examine storage server metrics such as database, category, ceiidisk, and griddisk

09. Which three statements are true about Oracle Configuration Manager (OCM) for an Exadata Database Machine?
a) It is mandatory to install OCM on at least one database server.
b) Collected configuration information can be uploaded manually to Oracle.
c) Collected configuration information can be uploaded automatically to Oracle.
d) It collects configuration information on demand.
e) It collects configuration information automatically.
f) It is mandatory to install OCM on all database servers.

10. Which two activities are supported on the storage servers in an Exadata Database Machine?
a) changing the root password
b) upgrading a device driver for hard disks when inserting a replacement disk after a hard disk failure
c) installing an alternative package manager
d) upgrading the Storage Server software package using rpm
e) configuring secure shell user equivalency for the cellmonitor user

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