Questions for the 1Z0-902 were updated on : Dec 01 ,2025
Which statement is FALSE about the OEDA command line interface (OEDACU)?
D
Explanation:
The Oracle Exadata Deployment Assistant Command Line Interface (OEDACU) supports a variety of
configuration and lifecycle management tasks for Exadata systems, such as adding or removing
nodes, resizing ASM disk groups, and managing Oracle Database home directories. However, it does
not support lifecycle management for the Zero Data Loss Recovery Appliance (ZDLRA), as this device
requires different management tools specific to its backup and recovery functions .
What does the following command do?
root@rul6 -]# for j in {01..23} ; do ipmitool sunoem cli "set /SP/network/test
ping=192.168.1.1$j'' ; done
B
Explanation:
The given command uses a for loop with ipmitool to issue ping commands sequentially to a range of
IP addresses in the management network:
for j in {01..23}; do ipmitool sunoem cli "set /SP/network/test ping=192.168.1.1$j"; done
This script verifies the connectivity of the ILOM management network before the Exadata
installation. Each server’s Service Processor (SP) is tested for reachability, confirming that the
management network setup is operational across the full rack .
What is the minimum Exadata System Software version required for Exadata X9M?
C
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 .
You want to examine how much Smart Scan activity is occurring.
Which two would provide the information you require?
BE
Explanation:
To determine the amount of Smart Scan activity on an Exadata Database Machine, you can access
two specific commands:
CELLCLI Command: Using the list activerequest command within CELLCLI on all storage cells will
show the number of Smart Scans being processed. CELLCLI is an interface specific to Exadata Storage
Servers for management and monitoring, and it provides real-time visibility into ongoing Smart Scan
operations .
EXACLI Command: Similarly, the list ACTIVEREQUEST command using EXACLI on all storage cells also
lists the Smart Scans executed across the storage servers. EXACLI is a remote command-line utility
that can be run from a database server to manage storage cells, offering convenient access to similar
Smart Scan information .
When receiving an Exadata Database Machine rack on site, which of the following statements is
INCORRECT?
E
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.
Which of the below is NOT a precaution that should be adhered to in order to ensure the site is safe
and ready for
C
Explanation:
When preparing a site for an Exadata Database Machine, several precautions ensure both the safety
of the installation and the optimal performance of the equipment. These precautions include:
Avoiding High-Interference Equipment: Installing near devices like photocopy machines, which can
emit electromagnetic interference (EMI), is not a specified precaution for Exadata installations.
However, attention should be given to site requirements for temperature, power, and proper
grounding connections .
In contrast, other site requirements include exclusive grounding for Exadata racks, avoiding direct
sunlight exposure, and ensuring grounding resistance is less than 10 ohms for shared grounding to
minimize electrical risks.
What are the two benefits of using Oracle Exadata Deployment Assistant (OEDA)?
BE
Explanation:
Oracle Exadata Deployment Assistant (OEDA) offers multiple benefits for configuring and deploying
Exadata systems:
Configuration Gathering and Rack File Creation: OEDA simplifies the setup of Exadata environments
by collecting system-specific configuration details. It uses this information to generate the Exadata
Rack configuration file, which outlines the optimal setup for the particular environment, streamlining
the deployment process and ensuring compatibility with Oracle best practices .
Lifecycle Management CLI for Exadata Systems: OEDA includes a command-line interface (CLI) that
facilitates various lifecycle management tasks, specifically designed for Exadata systems. This CLI
helps in automating deployment steps, adjusting configurations, and updating system parameters,
tailored specifically for Exadata’s hardware and software environment .
Which two steps concise the path used to communicate with Enterprise Manager from an Exadata
Database Machine?
DE
Explanation:
In an Exadata environment, the path of communication for SNMP traps involves:
Management Server (MS) Process to EM Agent: Alerts related to the storage server are generated by
the MS process, which then forwards SNMP traps directly to the Enterprise Manager agent, allowing
centralized monitoring and alert management .
ILOM to EM Agent: The ILOM on each Exadata storage server can independently send SNMP traps to
the EM agent, providing additional hardware-level monitoring and alerting capabilities .
These pathways ensure that alerts from both hardware and software layers reach Enterprise
Manager efficiently, supporting proactive management and rapid response to system issues.
Which two statements are true about Exadata System Software metrics and alerts on an Exadata
Database Machine?
BE
Explanation:
Exadata System Software metrics and alerts work as follows:
Persistence of Thresholds: When metric thresholds are configured, they remain active and persist
across server reboots. This ensures consistent monitoring behavior even after maintenance or
unexpected reboots .
Default Metrics: By default, metrics are collected without predefined thresholds. Administrators
must set custom thresholds to enable specific alerting based on their operational requirements .
Which three statements are true concerning the configuration or use of Enterprise Manager Cloud
Control to monitor and manage Exadata Database Machine components?
DEF
Explanation:
Oracle Enterprise Manager (EM) Cloud Control provides comprehensive monitoring and
management for Exadata Database Machines, including:
Support for Database Machine Storage Expansion Racks: EM Cloud Control seamlessly integrates
with the Storage Expansion Rack, allowing administrators to monitor both primary and expansion
storage environments together, which is essential for large-scale deployments .
Minimal Agent Installation: Cloud Control needs only one Oracle Management Agent on one
compute node to monitor the entire Database Machine cluster, covering all compute and storage
nodes. This is due to Exadata’s interconnect and resource-sharing capabilities, enabling centralized
monitoring with minimal setup requirements .
Exadata X9M enables virtualization using KVM. Which statement is true about virtualization on
Exadata X9M?
B
Explanation:
Oracle Exadata X9M-2 supports virtualization through Kernel-based Virtual Machine (KVM), enabling
multiple virtual machines (VMs) to run on each database server. Specifically:
Each X9M-2 database server can support up to 12 virtual guests. This number provides ample
flexibility for running various applications or Oracle Real Application Clusters (RAC) instances across
virtualized environments .
While Exadata X9M-8 supports even more extensive virtualization, this question focuses on the X9M-
2 model. The specified limitation of 12 guests per database server considers both system resource
allocation and performance optimization .
Which statement is true about the disks that are used in ASM diskgroups on the Exadata platform?
B
Explanation:
On Exadata systems, ASM disk group configurations require that:
Grid Disks Must Have Similar Performance Characteristics: Within a disk group, grid disks must not
only be of the same size but also need to exhibit similar performance traits. This consistency ensures
balanced I/O operations and optimizes the performance for ASM mirroring and striping across disks .
Sparse Diskgroups: These are specialized virtual objects that reside within the DATA disk group.
Sparse diskgroups are used to support snapshots and other space-efficient storage solutions by
creating virtual representations of grid disks within an existing disk group without consuming
additional physical space .
These characteristics are fundamental to ensuring that ASM maintains optimal performance and
storage efficiency on Exadata platforms.
You are monitoring PMEM cache to see if it is being used effectively with RDM
BE
Explanation:
To monitor the effectiveness of Persistent Memory (PMEM) cache usage with RDMA on Exadata,
information on RDMA I/O statistics can be found in:
PMEM Cache User Reads section in the AWR Report: This section provides detailed statistics on
PMEM read operations, including user reads that leverage RDMA for direct memory access from
PMEM. These metrics help gauge the utilization and efficiency of the PMEM cache .
Exadata Metrics (LIST METRICCURRENT): By using the LIST METRICCURRENT command within the
Exadata environment, real-time metrics related to PMEM usage and RDMA I/O statistics can be
accessed. This provides an immediate view of the current performance and activity on Exadata’s
persistent memory components .
These tools together offer insights into PMEM cache usage and the effectiveness of RDMA for
optimized data access.
You plan to monitor the status of the motherboard, memory, power, fans, and network cards on the
database nodes in your Exadata Database Machine using Enterprise Manager.
Where must you set the thresholds for these hardware components and why, to assure that sensor
readings, faults, and any related alerts, are visible in Enterprise Manager?
A
Explanation:
For Exadata systems, hardware monitoring for components like the motherboard, memory, power,
fans, and network cards on the database nodes is managed through the Integrated Lights Out
Manager (ILOM). The ILOM provides built-in thresholds and sensor readings that are automatically
recognized by Oracle Enterprise Manager.
These thresholds and alerts are already configured within ILOM for Exadata components, ensuring
seamless integration with Enterprise Manager for alerting and monitoring purposes .
Enterprise Manager uses these pre-set ILOM thresholds and does not require additional
configuration for monitoring hardware components. Therefore, administrators benefit from preset
alerting mechanisms that are sufficient for comprehensive hardware status visibility .
Your customer would like to configure monitoring capabilities Auto Service Request (ASR) on the
stand-alone server that was set aside to run ASR Manager.
What configuration should you set up for the customer?
C
Explanation:
For setting up Auto Service Request (ASR) monitoring on a standalone server dedicated to ASR
Manager:
ASR Manager with SNMP Traps: Configuring ASR Manager to utilize SNMP traps allows it to
automatically receive alerts from the Integrated Lights Out Manager (ILOM) on Exadata components.
The SNMP traps notify ASR Manager of specific hardware faults or critical system events, which then
automatically generate service requests with Oracle Support .
This setup ensures proactive monitoring and allows rapid response to any critical alerts related to the
Exadata hardware, leveraging the ILOM’s ability to monitor key system health metrics and trigger
alerts as necessary.