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1z0-902 Practice Questions

Question # 1

You are updating your Exadata X9M-2 Elastic Database Machine with 6 database servers and 12 High Capacity Storage Servers. You will be using patchmgr to apply updates across the entire machine while still maintaining database availability. Assuming you are driving patchmgr from an external server, which statement is true about the execution phase?

A.

patchmgr must be invoked with the —rolling argument. Each component type must be upgraded independently of the other.

B.

patchmgr cannot apply updates in a rolling manner, you must manually apply patches with the dbnodeudpate and cellupdate tools if high availability is required.

C.

patchmgr will apply patches in component groups consisting of 1 database server and 2 storage servers to minimize disruption.

D.

patchmgr must be invoked with the —rolling argument with all database and storage servers listed in a single input file.



D.

patchmgr must be invoked with the —rolling argument with all database and storage servers listed in a single input file.



Question # 2

What is the maximum DRAM capacity you can expand an X9M-2 DB Server?

A.

1536GB

B.

512GB

C.

2048GB

D.

768GB

E.

1024GB



C.

2048GB


The Exadata X9M-2 Database Machine uses powerful database servers, each with two 32-core x86 processors and 512 GB of memory (expandable up to 2 TB).


Question # 3

You must drop all celldisks on all the storage servers in an X9M-2 quarter rack as part of a reconfiguration project. Which three statements describe the account on the storage servers which you should use and the tool that may be used to drop the celldisks?

A.

to the CELLADMIN account by calling CELLCLI on all cells using DCLI

B.

to an administrator-created storage server user with appropriate privileges on celldisk objects by calling CELLCLI on all cells using exadcli

C.

to the CELLMONITOR account using cellcli interactively on each storage server

D.

to an administrator-created storage server user with appropriate privileges on celldisk objects by calling EXACLI on all cells using exadcli

E.

to the CELLMONITOR account calling CELLCLI on all cells using DCLI



B.

to an administrator-created storage server user with appropriate privileges on celldisk objects by calling CELLCLI on all cells using exadcli


C.

to the CELLMONITOR account using cellcli interactively on each storage server


E.

to the CELLMONITOR account calling CELLCLI on all cells using DCLI



Question # 4

You are concerned about the operating temperature of the database servers in your Exadata Full Rack and want to be alerted if the server exceeds 30C. What command should use use to generate alerts for such an event?

A.

dbmcli -e "set alert ds_temp> 30" on each database server

B.

dbmcli -e "set threshold ds_temp comparison=' >', critical=30" on each database server

C.

dbmcli -e "alert metriccurrent ds_temp where metricValue > 30" on each database server

D.

dbmcli -e "create threshold ds_temp comparison='>', critical=30" on each database server



A.

dbmcli -e "set alert ds_temp> 30" on each database server



Question # 5

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.

alert logs for Enterprise Manager

B.

alert logs for the ASM instances

C.

Enterprise Manager Alerts on the Exadata Storage Server Grid home page

D.

Enterprise Manager Alerts on the ILOM home page for cell connectivity problems for the prod database instances

E.

alert logs for the prod database instances



C.

Enterprise Manager Alerts on the Exadata Storage Server Grid home page


D.

Enterprise Manager Alerts on the ILOM home page for cell connectivity problems for the prod database instances



Question # 6

Which three steps are required to expand an Exadata X9M-2 Database Server with the lowest memory configuration available to the highest memory configuration?

A.

Add 12x 32GB DIMMs.

B.

Add 12x 64GB DIMMs.

C.

Shutdown the Database Server if running.

D.

Add 16x 32GB DIMMs.

E.

Add 16x 64GB DIMMs.



D.

Add 16x 32GB DIMMs.


E.

Add 16x 64GB DIMMs.




Question # 7

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.



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.



Question # 8

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 Enterprise Manager host pages for 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.

cellcli (or exacli/exadcli) to examine storage server metrics such as database, category, ceiidisk, and griddisk

E.

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


D.

cellcli (or exacli/exadcli) to examine storage server metrics such as database, category, ceiidisk, and griddisk



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Oracle 1z0-902 Exam Dumps

Exam Name: Oracle Exadata Database Machine X9M Implementation Essentials
Certification Name: Oracle Exadata

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