FREE PDF QUIZ 2025 ORACLE RELIABLE 1Z0-931-25 LATEST EXAM MATERIALS

Free PDF Quiz 2025 Oracle Reliable 1Z0-931-25 Latest Exam Materials

Free PDF Quiz 2025 Oracle Reliable 1Z0-931-25 Latest Exam Materials

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Oracle 1Z0-931-25 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Autonomous Database Dedicated: This section of the exam measures the skills of IT Architects and explores the workflows and functionality of Autonomous Database Dedicated and Autonomous Database Cloud@Customer. It includes provisioning dedicated resources, setting up OCI policies, monitoring infrastructure, scheduling maintenance tasks such as patching, and managing encryption keys for enhanced security. IT Architects will learn how to integrate dedicated database environments within their cloud strategy.
Topic 2
  • Managing and Maintaining Autonomous Database: This section of the exam measures the skills of Database Administrators and focuses on the ongoing management and maintenance of Autonomous Database instances. It includes using REST APIs and OCI CLI for automation, configuring access control lists and private endpoints, monitoring performance, setting up notifications, utilizing features like auto-indexing and data safe, handling connectivity through wallets and service handles, and configuring disaster recovery using Data Guard to ensure business continuity.
Topic 3
  • Data Lake Analytics with Autonomous Database: This section of the exam measures the skills of Big Data Engineers and explores how Autonomous Database can be used for analytics in data lake environments. It includes data ingestion, query optimization, and leveraging cloud-native analytics services, ensuring engineers can efficiently process and analyze large volumes of structured and unstructured data.
Topic 4
  • Autonomous Database Shared: This section of the exam measures the skills of Cloud Engineers and focuses on creating and managing shared Autonomous Database instances. It includes provisioning, scaling, and starting or stopping instances, as well as database consolidation with Elastic Resource Pools. It also covers user management, cloning, database migration, monitoring, backup and restore processes, and introduces Data Guard for high availability, ensuring cloud engineers can maintain optimal database performance.

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Oracle Autonomous Database Cloud 2025 Professional Sample Questions (Q20-Q25):

NEW QUESTION # 20
Your customer wants to permanently disable scheduled maintenance on Autonomous Dedicated Infrastructure to keep their current database version. How can they achieve this?

  • A. You cannot permanently disable scheduled Automatic Maintenance
  • B. Change the Automatic Maintenance Schedule to 'None'
  • C. Change the Automatic Maintenance Schedule to 'Specify a Schedule' but do not select any month, week, or day
  • D. Change the Automatic Maintenance Schedule to 'No Preference'

Answer: A

Explanation:
Oracle Autonomous Database on Dedicated Infrastructure enforces automatic maintenance to ensure security, stability, and performance. The correct answer is:
You cannot permanently disable scheduled Automatic Maintenance (C): Oracle mandates periodic maintenance updates (e.g., patching) to keep the database secure and compliant with the latest fixes. Customers can influence the timing of these updates but cannot disable them permanently. This is a design principle of the Autonomous Database service to reduce administrative overhead while maintaining system integrity.
The incorrect options are:
Change the Automatic Maintenance Schedule to 'No Preference' (A): This setting allows Oracle to determine the maintenance window but does not disable maintenance. It still occurs as scheduled by Oracle.
Change the Automatic Maintenance Schedule to 'None' (B): There is no 'None' option in the maintenance scheduling settings for Autonomous Dedicated Infrastructure. This is not a valid configuration.
Change the Automatic Maintenance Schedule to 'Specify a Schedule' but do not select any month, week, or day (D): This is not a functional workaround. Specifying a schedule requires selecting a valid time window, and leaving it blank does not prevent maintenance; it simply reverts to Oracle's default scheduling.
Oracle's documentation confirms that while customers can reschedule or skip specific maintenance runs (up to two consecutive quarters), permanently disabling automatic maintenance is not permitted to ensure the system remains up-to-date and secure.


NEW QUESTION # 21
Your customer has upgraded their on-premises 11.2 Database to 12.2. During this migration, the database was migrated to a pluggable database (PDB) and is now in production. How should the customer unplug their database to migrate to an Autonomous Database?

  • A. PDBs cannot be migrated to an Autonomous Database using plug, unplug, or clone.
  • B. Create a database link from the source database to the Autonomous Database environment and clone the PDB.
  • C. Unplug into a PDB archive, which can be uploaded to Object Storage.
  • D. Unplug into an XML file so that the database and XML files can be uploaded to Object Storage.

Answer: A

Explanation:
Migrating a PDB to Autonomous Database has limitations:
Correct Answer (B): "PDBs cannot be migrated to an Autonomous Database using plug, unplug, or clone" is true. Autonomous Database does not support direct plugging/unplugging of PDBs due to its managed architecture and differing storage/backup mechanisms.
Incorrect Options:
A: Unplugging into an XML file is valid for traditional PDBs, but Autonomous Database doesn't accept this for migration.
C: Cloning via database link isn't a standard method; it's more aligned with replication tools like GoldenGate.
D: PDB archives (e.g., .pdb files) are not supported for direct import into Autonomous Database.
Instead, use tools like Data Pump or GoldenGate for migration.


NEW QUESTION # 22
Which statement is NOT correct when the Autonomous Database is stopped?

  • A. CPU billing is halted.
  • B. User with DWROLE can still access the database.
  • C. In-flight transactions and queries are stopped.
  • D. Tools are no longer able to connect to a stopped instance.

Answer: B

Explanation:
When an Autonomous Database is stopped, its operational state changes significantly:
Correct Answer (C): "User with DWROLE can still access the database" is not correct. When the database is stopped, all access is disabled, including for users with roles like DWROLE (a predefined role for Data Warehouse tasks). The database is offline, and no connections or operations are possible until it is restarted.
True Statements:
A: Tools (e.g., SQL Developer, JDBC clients) cannot connect to a stopped instance because the database services are unavailable.
B: In-flight transactions and queries are terminated upon stopping, with any uncommitted changes rolled back to maintain data consistency.
D: CPU billing ceases when the database is stopped, though storage billing continues, reflecting Oracle's pay-per-use model for compute resources.
This behavior ensures resource conservation and cost control while maintaining data integrity.


NEW QUESTION # 23
Which three are Oracle-recommended best practices for Autonomous Database alarms? (Choose three.)

  • A. Routinely tune your alarms
  • B. Select the correct alarm interval for your metric.
  • C. Suppress alarms during investigations
  • D. Create multiple alarm metrics

Answer: A,B,C

Explanation:
Oracle recommends best practices for effective alarm management:
Correct Answer (A): Suppress alarms during investigations prevents notification overload while troubleshooting, focusing attention on the issue.
Correct Answer (C): Select the correct alarm interval for your metric ensures timely alerts without excessive noise (e.g., 1-minute intervals for critical metrics).
Correct Answer (D): Routinely tune your alarms adjusts thresholds and settings to match workload changes, maintaining relevance.
Incorrect Option:
B: Creating multiple alarm metrics isn't explicitly recommended; quality and tuning of alarms matter more than quantity.
These practices optimize monitoring efficiency.


NEW QUESTION # 24
Which statement is true about OCPUs and storage when you choose to scale your Autonomous Database?

  • A. OCPUs and storage can be scaled independently
  • B. Use auto scaling to increase storage
  • C. OCPUs and storage must remain in sync
  • D. Increasing OCPUs will automatically increase storage

Answer: A

Explanation:
Scaling resources in Autonomous Database offers flexibility. The true statement is:
OCPUs and storage can be scaled independently (A): In Autonomous Database, you can adjust the number of OCPUs (compute resources) and storage capacity (in terabytes) separately via the OCI console or CLI. For example, you might provision an ADB with 2 OCPUs and 1 TB of storage. Later, you could scale to 4 OCPUs without changing storage, or increase storage to 2 TB without touching OCPUs. This decoupling allows tailored resource allocation-e.g., more compute for a CPU-intensive workload or more storage for growing data-without over-provisioning. Scaling is online, with no downtime, and status shows "SCALING IN PROGRESS" during the operation.
The incorrect options are:
Use auto scaling to increase storage (B): Auto scaling applies to OCPUs only, allowing up to 3x the base CPU allocation dynamically. Storage scaling is manual; you specify a new size (e.g., via oci db autonomous-database update), not via auto scaling.
Increasing OCPUs will automatically increase storage (C): There's no automatic linkage between OCPU and storage scaling. They are independent parameters, and increasing one does not affect the other unless explicitly requested.
OCPUs and storage must remain in sync (D): No such synchronization is required. You can have 1 OCPU with 10 TB or 10 OCPUs with 1 TB, depending on workload needs.
This independence is a hallmark of Autonomous Database's elasticity.


NEW QUESTION # 25
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