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Oracle 1Z0-931-25 Exam Syllabus Topics:

Topic
Details

Topic 1

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.

Topic 2

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 3

Migrating to Autonomous Database: This section of the exam measures the skills of Cloud Migration Specialists and covers strategies for migrating existing databases to Autonomous Database. It includes understanding migration considerations, and available options, and using Oracle Data Pump to transfer data seamlessly while minimizing downtime, ensuring smooth transitions to Oracle Cloud infrastructure.

Topic 4

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 5

Autonomous Database Tools: This section of the exam measures the skills of Data Analysts and covers the tools available within Autonomous Databases for advanced data processing and analytics. It includes Oracle Machine Learning, APEX, and SQL Developer Web for database development, as well as data transformation, business model creation, data insights, and data analysis, allowing analysts to extract valuable insights from large datasets.

Oracle Autonomous Database Cloud 2025 Professional Sample Questions (Q19-Q24):

NEW QUESTION # 19
Which management operation is correct about Autonomous Databases on Shared Exadata Infrastructure?

A. You can choose to use Release Update or Release Update Revision updates for your Autonomous Databases on Shared Infrastructure
B. You can perform a "rolling restart" on all the Autonomous Databases. During a rolling restart, each node on the Autonomous Database is restarted separately while the remaining nodes continue to be available
C. You cannot configure the scheduling for your Autonomous Databases on Shared Exadata Infrastructure
D. You can skip a scheduled maintenance run. For Autonomous Database on Shared Exadata Infrastructure, you can skip maintenance runs for up to two consecutive quarters if needed

Answer: C

Explanation:
Management operations for Autonomous Databases on Shared Exadata Infrastructure are limited due to its fully managed nature. The correct statement is:
You cannot configure the scheduling for your Autonomous Databases on Shared Exadata Infrastructure (C): In shared infrastructure, Oracle fully controls maintenance scheduling (e.g., patching, upgrades). Unlike dedicated infrastructure, where users can set maintenance windows, shared ADB users cannot adjust timing. Oracle notifies users of upcoming maintenance (e.g., via email or console), typically in a 7-day window, but the exact schedule is Oracle-driven to optimize the shared Exadata platform. For example, a quarterly patch might occur on a Tuesday at 2 AM UTC, and users must adapt, not reschedule.
The incorrect options are:
You can skip a scheduled maintenance run... (A): False. Shared infrastructure does not allow skipping maintenance runs, even for two quarters. This flexibility exists only in dedicated infrastructure, where users have more control (e.g., skipping up to two consecutive updates). In shared mode, Oracle enforces updates for security and stability across all tenants.
You can perform a "rolling restart"... (B): False. Rolling restarts (restarting nodes sequentially for availability) are not user-initiated in ADB shared infrastructure. Restarts, if needed, are managed by Oracle during maintenance, and users cannot control the process or ensure node-by-node availability.
You can choose to use Release Update or Release Update Revision updates... (D): False. In shared infrastructure, Oracle applies Release Updates (RUs) uniformly across all databases; users cannot choose between RU or Release Update Revisions (RURs), a feature reserved for dedicated deployments.
This reflects the trade-off of shared infrastructure: lower cost and management effort for less control.

NEW QUESTION # 20
Which statement is true about connecting a marketplace Oracle Cloud Infrastructure (OCI) image to an Autonomous Database on Shared Infrastructure?

A. The marketplace OCI image does not support connecting to an Autonomous Database on Shared Infrastructure.
B. The Autonomous Database must belong to a Network Security Group (NSG).
C. The marketplace OCI image can be used with an Always Free Autonomous Database account.
D. A Private Endpoint is required to connect to the Autonomous Database on Shared Exadata infrastructure.

Answer: C

Explanation:
Full Detailed In-Depth Explanation:
Connecting a marketplace OCI image (e.g., a pre-configured VM) to an Autonomous Database on Shared Infrastructure involves network and compatibility considerations. Let's analyze each option:
A . The Autonomous Database must belong to a Network Security Group (NSG): False. NSGs enhance security but are optional. Connectivity can be achieved without them using security lists or other rules.
B . The marketplace OCI image can be used with an Always Free Autonomous Database account: True. The Always Free tier supports connectivity from OCI marketplace images, provided network configurations (e.g., VCN, subnet) allow it. This makes B the correct answer.
C . A Private Endpoint is required to connect to the Autonomous Database on Shared Exadata infrastructure: False. While private endpoints enhance security, public endpoints are also supported for shared infrastructure, making this optional.
D . The marketplace OCI image does not support connecting to an Autonomous Database on Shared Infrastructure: False. Marketplace images are designed to integrate with OCI services, including Autonomous Databases on shared infrastructure.
Option B stands out as it aligns with Oracle's support for Always Free tiers, offering flexibility for users to leverage marketplace tools without additional cost.

NEW QUESTION # 21
What two actions can you do when a refreshable clone passes the refresh time limit? (Choose two.)

A. You can extend the refresh time limit
B. You can disconnect from the source to make the database a read/write database
C. You can use the instance as a read-only database
D. You can manually refresh the clone

Answer: B,C

Explanation:
A refreshable clone in Autonomous Database is a read-only copy of a source database that syncs periodically, but it has a refresh time limit (typically 7 days). Once this limit is exceeded, specific actions are available. The two correct options are:
You can disconnect from the source to make the database a read/write database (B): After the refresh time limit passes, the clone can no longer sync with the source. You can "disconnect" it (via the OCI console or API, e.g., oci db autonomous-database update --is-refreshable-clone false), converting it into an independent, read/write Autonomous Database. This requires a new license and incurs full costs, but it allows modifications (e.g., INSERT or UPDATE) that were blocked in read-only mode. For example, a test clone might be disconnected to become a production instance after testing.
You can use the instance as a read-only database (C): Even after the refresh limit, the clone remains functional as a read-only database, retaining its last refreshed state. You can query it (e.g., SELECT * FROM sales) for analysis or reporting without further refreshes, though it won't reflect source updates. This is useful if ongoing read-only access suffices without needing write capabilities.
The incorrect options are:
You can manually refresh the clone (A): False. Once the refresh time limit (e.g., 7 days) is exceeded, manual refreshes are not possible. The clone's refresh capability expires, and it can't sync again unless recreated. This is a fixed constraint to manage resource usage in ADB.
You can extend the refresh time limit (D): False. The refresh period (set during clone creation, max 7 days) cannot be extended after provisioning. You'd need to create a new clone with a longer limit if needed, but post-expiry, no extension is allowed.
These options provide flexibility post-expiry, balancing read-only continuity and full database conversion.

NEW QUESTION # 22
You are the admin of an Autonomous Database (ADB) instance, and a new developer has requested a new workspace in APEX. What statement describes the step to provide the developer a new workspace in APEX?

A. Create a database user with the APEX role.
B. Create an IDCS user with the APEX role.
C. Access the APEX Administrator Services and create the workspace for the developer.
D. Create a new developer account

Answer: C

Explanation:
Oracle APEX (Application Express) in Autonomous Database requires a workspace for development:
Correct Answer (A): "Access the APEX Administrator Services and create the workspace for the developer" is the correct step. As an admin, you log into the APEX Administration Services (via Database Actions or a direct URL), navigate to "Manage Workspaces," and create a new workspace, assigning it to the developer with a schema and credentials.
Incorrect Options:
B: Creating an IDCS (Identity Cloud Service) user with an APEX role manages authentication but doesn't create a workspace.
C: A database user with an APEX role lacks a workspace; it's a prerequisite step, not the solution.
D: "Create a new developer account" is vague and doesn't specify the APEX workspace creation process.
This ensures the developer has a dedicated environment for building applications.

NEW QUESTION # 23
When integrating object storage with Autonomous Database, how effectively does Oracle use the files in the object storage?

A. Scan partition tables
B. Scan hybrid partition tables
C. Prune columns in CSV files
D. Prune columns in parquet files

Answer: A

Explanation:
When Autonomous Database integrates with object storage (e.g., Oracle Cloud Infrastructure Object Storage), it optimizes data access. The correct answer is:
Scan partition tables (B): Oracle leverages partition pruning when scanning tables stored in object storage. This means it only scans the relevant partitions based on query predicates, significantly reducing I/O and improving performance. This is particularly effective for partitioned tables stored in formats like Parquet or ORC, which support partitioning.
The incorrect options are:
Prune columns in parquet files (A): While column pruning is possible with columnar formats like Parquet, the primary optimization highlighted in Oracle's documentation for object storage integration is partition pruning, not column pruning alone.
Scan hybrid partition tables (C): "Hybrid partition tables" is not a standard term in this context. Oracle supports external partitioned tables, but the focus is on scanning partitioned tables, not a hybrid-specific optimization.
Prune columns in CSV files (D): CSV files are row-based and do not natively support column pruning, making this less effective compared to partition scanning.
Partition pruning is a key optimization for external tables in object storage, enhancing query efficiency.

NEW QUESTION # 24
......

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