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What is Oracle 1Z0-902 Exam

Oracle Exadata Database Machine X9M Implementation Essentials Exam is an industry-recognized certification that is offered by Oracle. With the Oracle 1Z0-902 Exam, you will be able to build a complete portfolio of technical skills that will help you work for Oracle.

Oracle Exadata Database Machine (XDB) is a high-performance data warehouse appliance. It is designed to deliver performance that is 10x faster than traditional storage arrays, while simultaneously providing up to 100 times higher transaction rates than existing enterprise-class databases. Oracle Exadata Database Machine (XDB) is built on the latest generation of Oracle Exadata Database Technology (XDT), which enables the platform to deliver breakthrough performance. Oracle 1Z0-902 exam dumps are the key of success.

Oracle Exadata Database Machine (XDB) is an extension of Oracle Exadata Database Technology (XDT) that extends the benefits of database technology to the storage layer. It provides a new level of scalability, performance, and resiliency that is unparalleled by any other storage solution available.

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The Oracle Exadata Database Machine X8M is a high-performance database system that is designed to optimize the performance of Oracle databases. It is a complete system that includes hardware and software components, and it is specifically designed to run Oracle database workloads. The system is designed to deliver high performance, scalability, and availability for mission-critical applications. It is a complex system that requires specialized skills and knowledge to implement and manage. The Oracle 1Z0-902 exam is designed to test the knowledge and skills of IT professionals in implementing and managing Oracle Exadata Database Machine X8M systems. Passing this exam is a validation of an individual’s expertise in implementing and managing Oracle Exadata systems.

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The Oracle 1Z0-902 certification exam is designed to test the skills and knowledge of IT professionals who are responsible for implementing and managing the Oracle Exadata Database Machine X8M. This certification exam is intended for individuals who have experience working with Oracle database systems and want to enhance their expertise in implementing and managing Exadata Database Machine X8M.

Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q29-Q34):

NEW QUESTION # 29
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. 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
B. OS I/O metrics using Enterprise Manager host pages for the storage servers
C. cellcli (or exacli/exadcli) to examine storage server metrics such as database, category, ceiidisk, and griddisk
D. OS I/O metrics using OS tools such as iostat on the storage servers
E. OS I/O metrics using OS tools such as iostat on the database servers

Answer: B,C

Explanation:
1. OS I/O metrics using Enterprise Manager host pages for the storage servers: Enterprise Manager provides a detailed view of the storage server’s performance including I/O metrics and statistics. You can use these metrics to analyze I/O performance and identify any bottlenecks.
2. cellcli (or exacli/exadcli) to examine storage server metrics such as database, category, ceiidisk, and griddisk: These commands are used to gather information about storage server performance, including I/O statistics, disk usage, and resource allocation.

NEW QUESTION # 30
Which statement is true about the Persistent Memory Commit Accelerator?

A. Persistent Memory Commit Accelerator helps to further reduce redo log write latency by using Persistent Memory and Remote Direct Memory Access (RDMA).
B. Persistent Memory Commit Accelerator tracks changes to Persistent Memory Data Accelerator to ensure duplicate blocks are not written to Flash.
C. Persistent Memory Commit Accelerator reduces redo log write latency by using Persistent Memory and RDMA before flushing to Flash then disk.
D. Persistent Memory Commit Accelerator contains logging information from all tiers of the software stack for rapid triage and diagnostics.
E. Persistent Memory Commit Accelerator copies redo log data from disk for faster redo apply on Data Guard Standby Databases.

Answer: C

Explanation:
Persistent Memory Commit Accelerator reduces redo log write latency by using Persistent Memory and RDMA before flushing to Flash then disk. This helps to further reduce redo log write latency by utilizing the speed and low latency of Persistent Memory, along with the Remote Direct Memory Access (RDMA) protocol, to commit changes to disk faster. This allows the system to quickly commit changes to disk, resulting in improved performance and reduced latency.

NEW QUESTION # 31
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 32x 64GB DIMMs.
B. Memory cannot be expanded on Exadata X9M-2 Database Servers.
C. Add 24x 32GB DIMMs.
D. Add 12x 32GB DIMMs.
E. Add 12x 64GB DIMMs.
F. Add 16x 32GB DIMMs.
G. Shutdown the Database Server if running.
H. Remove existing memory modules.
I. Add 16x 64GB DIMMs.

Answer: G,H,I

Explanation:
1. Remove existing memory modules: Before adding new memory modules, the existing memory modules should be removed.
2. Add 16x 64GB DIMMs: The new DIMMs should be added, in this case is 16 DIMMs of 64GB each, which will expand the memory to the highest configuration available.
3. Shutdown the Database Server if running: The Database Server should be shutdown before adding new memory modules in order to prevent any possible data loss or corruption.
The steps required to expand an Exadata X9M-2 Database Server with the lowest memory configuration available to the highest memory configuration are as follows:
Shutdown the Database Server if running.
Remove existing memory modules.
Add 16x 64GB DIMMs.
For reference, the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book states that “the lowest memory configuration for the Exadata X9M-2 Database Servers is 384GB and the highest is 768GB [1]. The memory upgrade is done in increments of 64GB using 16x 64GB DIMMs”.

NEW QUESTION # 32
How is Exadata Secure RDMA Fabric isolation used in X9M-2 with virtualization enabled?

A. With Secure Fabric isolation, each Storage Server runs multiple KVM guests each dedicated to a Database VM cluster using a dedicated network partition and VLAN ID. This provides security and isolation between multiple tenants or VM clusters.
B. With Secure Fabric isolation, each Database VM cluster uses a dedicated network partition and VLAN ID for cluster networking between the database servers in the VM Cluster. This provides security and isolation between multiple tenants or VM clusters.
C. With Secure Fabric isolation, each Database VM Guest uses a dedicated network partition and VLAN ID for client networking between application servers. This improves security by preventing man in the middle attacks.
D. With Secure Fabric isolation, each Database VM Cluster uses a dedicated network partition and VLAN ID for Data Guard networking between the primary and disaster recovery Exadata racks. This improves security by isolating data guard traffic onto an encrypted network between data centers.

Answer: B

NEW QUESTION # 33
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 must be invoked with the -rolling argument with all database and storage servers listed in a single input file.
C. patchmgr will apply patches in component groups consisting of 1 database server and 2 storage servers to minimize disruption.
D. patchmgr cannot apply updates in a rolling manner, you must manually apply patches with the dbnodeudpate and cellupdate tools if high availability is required.

Answer: C

Explanation:
According to the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book [1], patchmgr can be used to apply updates in a rolling manner while still maintaining database availability. It will apply patches in component groups consisting of 1 database server and 2 storage servers to minimize disruption. This is done by invoking patchmgr with the -rolling argument and specifying the component groups in the input file.

NEW QUESTION # 34
……

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Valid 1z1-902 Latest Test Report Supply you Latest-updated Exam Pattern for 1z1-902: Oracle Exadata Database Machine X8M Implementation Essentials to Study easily

What is Oracle 1Z0-902 Exam

Exam Oracle 1z1-902 Pattern | 1z1-902 Online Bootcamps

Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q29-Q34):

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