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Oracle 1Z0-902 exam, also known as the Oracle Exadata Database Machine X8M Implementation Essentials exam, is a certification exam offered by Oracle Corporation to validate the skills and knowledge of professionals who are responsible for implementing and managing Oracle Exadata Database Machines. 1Z0-902 exam is designed to test the abilities of candidates in areas such as installation, configuration, troubleshooting, and optimization of the Exadata Database Machine X8M. Passing 1Z0-902 Exam is an important step towards becoming an Oracle Certified Expert in Exadata Database Machine X8M Implementation.

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Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q33-Q38):

NEW QUESTION # 33
Which are two valid reasons for executing an X9M-2 Exadata storage server rescue procedure?

A. accidental loss of all data from all griddisks in a storage server
B. corruption in a normal or high redundancy ASM diskgroup
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. corruption in the / (root) filesystem
F. the failure of physical disk 1
G. the failure of both physical M.2 disks

Answer: E,G

Explanation:
The two valid reasons are:
corruption in the / (root) filesystem . According to 1, this is one of the scenarios that requires a storage server rescue procedure , because it prevents the storage server from booting up normally . The rescue procedure will re-image the root filesystem with a fresh copy of the operating system and restore the configuration files from a backup1.
the failure of both physical M.2 disks . According to 2, each Exadata Storage Server X9M-2 has two physical M.2 disks that store the operating system and configuration files for the storage server . If both M.2 disks fail , then the storage server cannot boot up or function properly . The rescue procedure will replace the failed M.2 disks with new ones and re-image them with the operating system and configuration files2.

NEW QUESTION # 34
When receiving an Exadata Database Machine rack on site, which of the following statements is INCORRECT?

A. Front casters do not turn, you must steer the unit by moving the rear casters.
B. Pushing on the side panels can tip the rack over.
C. Four leveling feet share the load with the casters.
D. Reuse the shipping brackets to permanently mount the rack to the floor.
E. Push Oracle Exadata Rack from behind when moving into place.

Answer: D

Explanation:
The handling and installation of an Exadata Database Machine rack require caution and adherence to recommended guidelines:
Shipping Brackets: Shipping brackets are specifically designed for transportation purposes and should not be reused for permanent installation. Permanent floor mounting should use approved rack-mounting equipment to ensure stability and safety .
Steering and Pushing the Rack: Exadata racks should be steered from the rear due to fixed front casters. It is critical to avoid pushing the rack from the side panels, which could cause it to tip over, presenting a serious safety risk. This careful movement ensures safe positioning and prevents damage to the equipment during installation.

NEW QUESTION # 35
You have configured a multirack Database Machine with two X9M-8 full racks all in a single cluster and storage grid comprising a total of 4 X9M-8 Database servers and 28 X9M-8 Storage servers.
Which two options are true regarding the servers on which Enterprise Manager agents must be deployed in order to monitor all components of this multirack configuration?

A. on at least two storage servers in both racks
B. on all database servers in the second rack
C. on all database servers and at least two storage servers in both racks
D. on all storage servers in both racks
E. on all database servers in both racks and one storage server in each rack
F. on all database servers in the first rack
G. on only one database server in both racks

Answer: D,F

NEW QUESTION # 36
Which two statements are true about the initial storage configuration after the standard (non-virtualized) deployment of a new Exadata Database Machine with High Capacity storage servers?

A. There is free space available on flashdisks inside the Exadata storage servers for possible use for storage indexes.
B. The sparse_<DBM_NAME> diskgroup is created automatically.
C. The DATA_<DBM_Name> and RECO_<DBM_NAME> ASM diskgroups are built on with DATA on the outer-most tracks and RECO on the inner-most tracks of the physical disk.
D. There is free space available on flashdisks inside the Exadata storage servers to configure Exadata Smart Flash Logs.
E. There is free space available on the hard disks inside the database servers for possible extension of the /uoi file system.

Answer: B,C

Explanation:
This is according to the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book [1]. The other statements are false as there is no free space available on the hard disks inside the database servers for possible extension of the /uoi file system, and there is no free space available on flashdisks inside the Exadata storage servers for possible use for storage indexes or to configure Exadata Smart Flash Logs [2][3].

NEW QUESTION # 37
What is the minimum Oracle Linux version required to support RoCE and Persistent Memory?

A. Oracle Linux 7.9
B. Oracle Linux 7.7
C. Oracle Linux 7.5
D. Oracle Linux 8.0

Answer: D

Explanation:
RoCE, or Remote Direct Memory Access over Converged Ethernet, is a high-speed networking technology that allows data to be transferred between servers, storage, and other devices over Ethernet. Persistent Memory is a form of non-volatile memory that can be used to store data without losing it when power is lost.
Oracle Linux 8.0 supports both RoCE and Persistent Memory, allowing Exadata systems to leverage the benefits of both technologies. For more information on Oracle Linux 8.0 and its features, refer to the Oracle Exadata Database Machine X9M Implementation Essentials official text book and resources.

NEW QUESTION # 38
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