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Oracle 1Z0-902 Brain Dump Free, Free 1Z0-902 Study Material

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Oracle 1Z0-902 Certification Exam is intended for professionals who have experience in implementing and managing Oracle Exadata Database Machine X8M. You should have a solid understanding of Oracle Database concepts, administration, and architecture, as well as experience in configuring and managing Oracle Exadata Database Machine X8M.

Oracle 1Z0-902 certification exam measures the candidate's ability to implement Oracle Exadata Database Machine X8M. It covers topics such as the architecture of Oracle Exadata Database Machine X8M, configuring and managing Oracle Exadata Database Machine X8M, optimizing database performance using Oracle Exadata Database Machine X8M, and troubleshooting Oracle Exadata Database Machine X8M. Oracle Exadata Database Machine X8M Implementation Essentials certification exam consists of 60 multiple-choice questions that need to be completed within 105 minutes.

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Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q71-Q76):

NEW QUESTION # 71
What is the minimum Oracle Linux version required to support RoCE and Persistent Memory?

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

Answer: D

Explanation:
Oracle Linux 7.9 is the minimum version required to support RoCE and Persistent Memory. This is because Oracle Linux 7.9 includes kernel enhancements that enable RDMA over Converged Ethernet (RoCE) networking and Intel Optane DC Persistent Memory Modules (DCPMM) for Exadata X8M systems3. These features allow faster access latency and higher throughput for database workloads2.

NEW QUESTION # 72
You want to monitor how a large production table is accessed. Especially, you are interested to see how the access on that particular table leverages the benefits of the Exadata Platform.
Which two actions are NOT appropriate for that purpose?

A. You query v$SYSTAT and filter for the statistic 'cell smart table scan', associated to your table.
B. You query v$segment_statistics and filter for the Object ID of your table from dba_objects and the the column STATISTIC_NAME='optimized physical reads'.
C. You run the CellCli-command list activerequest , filtering for the attributes ioReason and objectNumber, that you specify as 'Smart Scan' and the Object ID of your table from DBA_OBJECTS.
D. YOU query VSSYSTEM_EVENTS and filter for the event 'cell physical IO interconnect bytes returned by smart scan', associated to your table.

Answer: A,D

Explanation:
1. YOU query VSSYSTEM_EVENTS and filter for the event 'cell physical IO interconnect bytes returned by smart scan', associated to your table. This does not show how much data was filtered by Smart Scan, but only how much data was returned after Smart Scan12.
2. You query v$SYSTAT and filter for the statistic 'cell smart table scan', associated to your table. This does not show how much data was filtered by Smart Scan for a specific table, but only for all tables in a session12.
https://www.databasejournal.com/oracle/monitoring-smart-scans-in-oracle-exadata/

NEW QUESTION # 73
What is the maximum DRAM capacity you can expand an X9M-2 DB Server?

A. 512GB
B. 384GB
C. 2048GB
D. 768GB
E. 1536GB
F. 1024GB

Answer: E

Explanation:
According to 1, Exadata X9M-2 Database Servers are based on Intel Xeon Platinum 8368Y processors with 32 cores and 768 GB of DRAM memory per server. This memory can be expanded up to 1.5 TB per server by adding 24 x 32 GB DIMMs. The DRAM memory is used for buffer cache, PGA, and other database purposes1. Exadata X9M-2 Database Servers also have 25.6 TB of Persistent Memory Acceleration (PMEM) per server, which is used for log writes and columnar data caching1. PMEM is a new type of memory that combines the speed of DRAM with the persistence of flash2. Exadata X9M-2 Database Servers are designed to run Oracle Database workloads with high performance, scalability, and reliability2

NEW QUESTION # 74
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. ZFS Snapshots can provide rapid cloning of development and test environment.
C. When backing up multi-rack systems, sharing Exadata X9M switches is recommended.
D. Top of Rack (ToR) switches are managed as part of the hardware stack and software levels are upgraded during the patching process.

Answer: A,C

Explanation:
A) ZFS Storage Appliance (ZFSSA) can't connect directly to the Exadata 100Gb RoCE network switches. ZFSSA uses Fibre Channel protocol to connect to the Exadata storage cells.
C) When backing up multi-rack systems, sharing Exadata X9M switches is not recommended. Each rack should have its own switches to minimize the risk of data loss due to switch failure.
Review the safety guidelines.
Unpack Oracle Exadata Rack.
Let the Exadata acclimatize for 24 hours.
Place Exadata in its allocated space.
Stabilize the Exadata Rack.
Power on Exadata PDU A.
Power on Exadata PDU B.
This order ensures that the necessary safety precautions are taken before installing the Exadata Database Machine, and that the machine is allowed to acclimate to its new environment before being powered on.

NEW QUESTION # 75
What is the minimum Exadata System Software version required for Exadata X9M?

A. 19.2.1 0.0
B. 21.3.0.0.0
C. 18.1.3.0.0
D. 19.3.0.0.0
E. 20.1.1.0.0
F. 21.2.0.0.0

Answer: F

Explanation:
The minimum Exadata System Software version required to support Oracle Exadata X9M is 21.2.0.0.0. This version introduced various enhancements and capabilities tailored for the X9M series, including optimizations for the RoCE network fabric and support for new hardware components .

NEW QUESTION # 76
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