1z0-931-25 Exam Dumps - Oracle Autonomous Database Cloud 2025 Professional

Full Detailed In-Depth Explanation:

To enable a business analyst to use Autonomous Database Data Tools (e.g., Data Load, SQL Developer Web), specific permissions are required:

REST-enabled user:Data Tools rely on REST APIs, necessitating a user with REST support enabled.

Connect and object privileges:These allow database access and interaction with tables.

DWROLE role:This predefined role grants a comprehensive set of privileges for data analysis tasks in Autonomous Data Warehouse (ADW), including SELECT, EXECUTE, and data loading capabilities.

Evaluating the options:

A:Correct. Creating a REST-enabled user with connect/object privileges and granting DWROLE ensures full access to Data Tools, tailored for ADW exploration.

B:Incorrect. Default privileges are minimal and insufficient for Data Tools usage.

C:Incorrect. While connect, resource, and object privileges provide basic access, they lack the REST enablement and DWROLE’s specific analysis permissions.

D:Incorrect. An IDCS (Identity Cloud Service) user is for OCI authentication, not database-level access, and this step overcomplicates the process.

Connecting an OCI Marketplace image (e.g., a compute instance running a preconfigured application) to a shared Autonomous Database (ADB) involves network configuration. The correct statement is:

Compute Image and Shared ADB must be in the same VCN and Subnet (A):For a compute instance from the OCI Marketplace to communicate with a shared Autonomous Database, both must reside in the same Virtual Cloud Network (VCN) and subnet. This ensures direct network connectivity without requiring complex routing or public internet traversal. By default, shared ADB instances use private endpoints within a VCN, and placing the compute instance in the same subnet allows seamless access using the database’s private IP address. For example, if the ADB is in subnet 10.0.1.0/24, the compute instance must also be in that subnet to connect via Oracle Net Services (e.g., using a wallet and tnsnames.ora).

The incorrect options are:

ADB must be configured with Private endpoints (B):While shared ADB instances are configured with private endpoints by default (not publicly accessible), this is not a configurable option you “must” set—it’s inherent to shared infrastructure. Thus, it’s not a requirement you actively enforce for this scenario; it’s already true.

ADB must be configured with NSG (C):Network Security Groups (NSGs) are optionalfor controlling traffic to an ADB. You can use NSGs for finer-grained security, but they are not mandatory; Security Lists at the subnet level can suffice. Hence, this is not a universal requirement for connectivity.

Cannot connect OCI Marketplace image to shared ADB (D):This is false. OCI Marketplace images (e.g., a web server or analytics tool) can connect to a shared ADB, provided network and authentication prerequisites (like same VCN/subnet and client credentials) are met.

This requirement simplifies network setup and enhances security by keeping communication internal to the VCN. For instance, a Marketplace image like a web application could query an ADB in the same subnet using JDBC or ODBC, leveraging the private endpoint.

Full Detailed In-Depth Explanation:

REST APIs use HTTP verbs:

A:True. POST creates new resources, such as an Autonomous Database instance.

B:False. GET retrieves data, not creates.

C:False. PUT updates existing resources.

D:False. INSERT is not a REST verb; it’s SQL-specific.

Setting up notifications for scheduled shutdowns leverages OCI Events:

Correct Answer (A): Creating a rule for the 'Autonomous Database STOP END' event in OCI Events triggers a notification (e.g., email via Notification Service) when the shutdown completes. This is the recommended method for tracking lifecycle events in Autonomous Database.

Incorrect Options:

B: There is no specific “Shutdown” metric in OCI Metrics; alarms monitor performance metrics, not lifecycle events like shutdowns.

C: Database triggers like BEFORE SHUTDOWN are not supported in Autonomous Database due to its managed nature, and they wouldn’t integrate with OCI notifications.

Graph query languages, like Oracle’s Property Graph Query Language (PGQL), are designed for graph databases:

Correct Answer (D): “Ability to specify patterns” is a defining feature. Graph queries excel at defining and matching patterns (e.g., nodes and edges) to explore relationships, such as finding paths or subgraphs, critical for applications like social network analysis or fraud detection.

Incorrect Options:

A: Key-value queries are typical of NoSQL key-value stores, not graph databases.

B: While scripting may be possible in some contexts, it’s not a core feature of graph query languages.

Managing Autonomous Database via REST APIs relies on OCI authentication:

Correct Answer (D): “Database ADMIN password” is not needed. REST API access uses OCI IAM credentials, not database-level credentials like the ADMIN password.

Required Items:

A: User’s OCID identifies the API caller.

B: Tenancy’s OCID specifies the cloud environment.

The Performance Hub in Autonomous Database provides real-time SQL monitoring with status indicators:

Correct Answer (A): Aclock iconin the Status column indicates “The SQL statement is queued.” This means the statement is waiting in a queue (e.g., due to resource limits or consumer group settings) and has not yet started executing.

Incorrect Options:

B: An executing statement typically shows a green progress bar or running icon, not a clock.

C: An error would display a red icon or error symbol, often with details in the UI.

Enabling auto scaling on an existing Autonomous Database can be done without unnecessary complexity:

Correct Answer (A): “Click Scale Up/Down and select the Auto Scaling checkbox” is the simplest GUI method. In the OCI Console, navigate to the database, select “Scale Up/Down,” and enable the auto scaling option, allowing up to 3x the base OCPUs dynamically.

Correct Answer (C): “Use a REST call to enable Auto Scaling” leverages the OCI REST API to update the database configuration with the isAutoScalingEnabled parameter set to true. This is ideal for programmatic control.

Incorrect Options:

B: Shutting down the instance is unnecessary; auto scaling can be enabled while the database is running.