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Free PDF Quiz High Pass-Rate Oracle - 1z1-902 Real Dumps

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Oracle 1Z0-902 certification exam covers various topics related to Oracle Exadata Database Machine X8M, including hardware and software components, networking, storage, backup and recovery, performance tuning, and security. 1z1-902 Exam is designed to validate the skills and knowledge required to implement and manage Oracle Exadata Database Machine X8M in a production environment.

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1z1-902 Exam Questions - Oracle Exadata Database Machine X8M Implementation Essentials Test Questions & 1z1-902 Test Guide

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Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q49-Q54):

NEW QUESTION # 49
Which two sections of the AWR report shows statistics for X9M Persistent Memory Cache?

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

Answer: D,E

Explanation:
The AWR report has two sections that show statistics for X9M Persistent Memory Cache: the PMEM Cache section within Memory Statistics and the PMEM Cache section within Exadata Smart Statistics. Both of these sections provide detailed information about the read and write hits and misses, as well as the total capacity and utilization of the PMEM cache. (Source: Oracle Exadata Database Machine X9M Implementation Essentials, page 515)

NEW QUESTION # 50
For which four component failures on an X9M Database Machine does Auto Service Request (ASR) raise service requests?

A. Cisco RDMA over Converged Ethernet (RoCE) switches
B. fans in the storage servers
C. power distribution units
D. RoCE network interface cards in the storage servers
E. Cisco management switch
F. RoCE network interface cards in the database servers
G. power supplies in the database servers

Answer: A,C,D,G

Explanation:
According to the Oracle Auto Service Request (ASR) documentation1, ASR raises service requests for qualified Oracle products that are detected with specific faults. The qualified Exadata products include2:
Database servers
Storage servers
InfiniBand switches
Cisco switches (X8M and later systems)
Power distribution units (PDUs)

NEW QUESTION # 51
Which two of the following network connection types can be deployed on the client network ports of an Exadata X9M-2 Database Server?

A. 2x 25Gb ports on eth1 and eth2 using SFP28 transceivers and OM4 fiber cable for backup network, and 2x 10Gb ports on eth3 and eth4 using RJ45 cat6 cable for client network
B. 2x 25Gb ports on eth1 and eth2 using SFP28 transceivers and OM4 fiber cable for backup network, and 2x 25Gb ports on eth5 and eth6 using SFP28 transceivers and OM4 fiber cable for client network
C. 2x 25Gb ports on eth1 and eth2 using SFP28 transceivers and OM4 fibre cable for client network, and 2x 10Gb ports on eth9 and eth10 using RJ45 cat6 cable for backup network
D. 2x 10Gb ports on eth1 and eth2 using FU45 cat6 cable for client network, and 2x 25Gb ports on eth11 and eth12 using SFP28 transceivers and OM4 fiber cable for backup network

Answer: A,C

NEW QUESTION # 52
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 threshold ds_temp comparison=' >', critical=30" on each database server
B. dbmcli -e "create 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 "set alert ds_temp> 30" on each database server

Answer: B

Explanation:
The correct command to generate alerts for an event when the temperature of the database servers in an Exadata Full Rack exceeds 30C is "dbmcli -e "create threshold ds_temp comparison='>', critical=30" on each database server". The dbmcli is the command-line interface for the Oracle Database Management Agent (DMA), which allows you to perform various management tasks on the Exadata servers. This command creates a threshold for the ds_temp metric with a comparison operator of ">" (greater than), and a critical value of 30. The threshold is set on all database servers in the Exadata Full Rack, so when the server temperature exceeds 30C, an alert will be generated.

NEW QUESTION # 53
Your system administrator reports an amber, non-blinking light on one of your Exadata storage disks. You immediately execute the 'list physicaldisk where diskType=HardDisk and status=failed DETAIL' command on the Exadata storage system and the specified disk is indeed reported as failed. Platinum Support has not been enabled for this system. Enterprise Manager Cloud Control is monitoring the system.
What is the next step that you should perform before you do anything else?

A. Call Oracle Support and make an appointment so that the drive can be replaced.
B. Ask the system administrator to replace the broken disk with a spare.
C. Wait for the email of the failure that Exadata or Enterprise Manager will send.
D. Check the database to see if any rebalance operations are active.
E. Download and run the latest exadiag tool.
F. Wait for a blue light to appear on the disk if the rebalance operation is running.

Answer: A

Explanation:
According to the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book [1], before doing anything else you should call Oracle Support and make an appointment so that the drive can be replaced. If Platinum Support is enabled, then you can call Oracle Support and they will arrange for the disk to be replaced. If Platinum Support is not enabled, then you can arrange for the disk to be replaced through Enterprise Manager Cloud Control.

NEW QUESTION # 54
......

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