1z0-931-25 Exam Dumps - Oracle Cloud Infrastructure Questions and Answers

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.

When enabling auto scaling in an Oracle Autonomous Database, the feature dynamically adjusts resources based on workload demand, but certain configuration elements remain unchanged unless manually altered.

Amount of storage (A): Auto scaling focuses on adjusting CPU and I/O resources to meet performance needs. The storage allocation remains constant because it is a separately provisioned resource that requires manual adjustment via the OCI Console or API. This ensures that storage capacity is not inadvertently reduced or expanded without explicit user intent.

Parallelism settings (B): These settings determine how many parallel processes are used for query execution. Auto scaling does not modify this pre-defined configuration; it adjusts resource usage (e.g., CPU cores) without altering the parallelism framework established for the database.

Level of concurrency (E): Concurrency refers to the maximum number of simultaneous user sessions. While auto scaling can indirectly influence concurrency by adjusting available resources, the concurrency limit itself is a fixed setting that remains unchanged unless explicitly modified by the administrator.

Incorrect Options:

I/O resources (C): Auto scaling directly impacts I/O resources by increasing or decreasing them alongside CPU adjustments to handle workload fluctuations.

Full Detailed In-Depth Explanation:

Oracle Data Safe enhances database security across various deployments. Let’s evaluate:

A:True. Data Safe assesses cloud database configurations for vulnerabilities.

B:True. It evaluates user authentication, types, and password policies.

C:False. Data Safe supports Autonomous Databases, Exadata Cloud Service, OCI VMs, and on-premises Oracle databases, not just Autonomous Databases.

D:True. It scans data and metadata to identify sensitive information.

Option C is the false statement, as Data Safe’s scope extends beyond Autonomous Databases.

Enabling a new business analyst to use SQL Developer Web with Autonomous Database requires specific steps. The correct answer is:

Create a database user (with connect, resource, object privileges), enable the schema to use SQL Developer Web, and provide the user with the user-specific modified URL (C):

Create a database user:As the ADMIN user, create a new database user (e.g., ANALYST1) with CONNECT (to log in), RESOURCE (to create objects), and object-specific privileges (e.g., SELECT on target tables). Example: CREATE USER ANALYST1 IDENTIFIED BY "password"; GRANT CONNECT, RESOURCE TO ANALYST1; GRANT SELECT ON HR.EMPLOYEES TO ANALYST1;. This ensures the analyst can access and query tables.

Enable the schema for SQL Developer Web:Use the ORDS_ADMIN.ENABLE_SCHEMA procedure to activate the schema for web access. Example: EXEC ORDS_ADMIN.ENABLE_SCHEMA(p_schema => 'ANALYST1');. This step integrates the user with Oracle REST Data Services (ORDS), which powers SQL Developer Web in ADB.

Provide the user-specific URL:After enabling the schema, generate and share the SQL Developer Web URL, which includes the user’s credentials (e.g., https:// /ords/analyst1/_sdw). The analyst logs in with their database username and password, accessing a browser-based SQL interface to explore tables.

The incorrect options are:

Create a database user with connect, resource, and object privileges (A):This alone isn’t enough; without enabling the schema for SQL Developer Web, the user can’t access it via the web interface.

Create a database user with the default privileges (B):Default privileges (e.g., just CONNECT) are insufficient for table access or web use; specific grants and ORDS setup are needed.

Create an IDCS user, create a database user with connect, resource, and object privileges (D):Oracle Identity Cloud Service (IDCS) integration is optional and not required for basic SQL Developer Web access in ADB. It’s overkill unless SSO is mandated, which isn’t specified here.

This multi-step process ensures secure, web-based access tailored to the analyst’s needs.

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 AutonomousDatabase 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.

Private endpoints enhance security for Autonomous Database:

Correct Answer (A): “A Network Security Group is required within your Virtual Cloud Network before you can provision a shared Autonomous Database to use private endpoints” is true. An NSG is mandatory to define ingress/egress rules for the private subnet hosting the endpoint.

Correct Answer (C): “Private endpoints can be configured when you clone a shared Autonomous Database that was initially created with public endpoints” is true. Cloning allows switching to a private endpoint configuration.

Incorrect Options:

B: Private endpoints are inaccessible from the public internet, even with ACLs; that’s their purpose.

Manual backups in Autonomous Database are stored in OCI Object Storage, and the bucket name follows a strict convention. The correct name is:

BACKUP_DBSRV1 (D):For manual backups, ADB uses a bucket named BACKUP_ (all uppercase). Here, DBSRV1 is the database’s unique name (not the display name PRODDB), so the bucket must be BACKUP_DBSRV1. This bucket is automatically created by Oracle when you initiate a manual backup via the OCI console (e.g., “Create Manual Backup” button) or API (e.g., oci db autonomous-database backup create). For example, backing up DBSRV1 on March 18, 2025, stores files like backup_DBSRV1_20250318.dmp in this bucket. The unique name ensures uniqueness across the tenancy, as display names (e.g., PRODDB) might not be unique but the DB_UNIQUE_NAME is system-assigned and distinct.

The incorrect options are:

backup_proddb (A):This uses the display name proddb and lowercase, violating the BACKUP_ uppercase convention.

BACKUP_PRODDB (B):While uppercase, it uses the display name PRODDB, not the unique name DBSRV1, so it’s incorrect. Display names are for human readability, not system identification.

backup_dbsrv1 (C):This uses lowercase and lacks the exact BACKUP_ prefix format, failing Oracle’s naming rule.

The rigid naming ensures consistency and automation in ADB’s backup system.

The client credentials wallet for connecting to an Oracle Autonomous Database contains specific files required for secure connectivity. These files are downloaded from the OCI Console when you generate a wallet:

Correct Answer (A): protocol.ora is not a standard component of the client credentials wallet. It is typically used in traditional Oracle Database setups to define protocol parameters (e.g., TCP vs. IPC), but in Autonomous Database, such details are managed by Oracle and embedded within other wallet files like ewallet.p12.

Included Files:

B. ewallet.p12: Contains the encrypted private key and certificates for authentication.

C. sqlnet.ora: Specifies network configuration details (e.g., wallet location, encryption settings).

D. keystore.jks: A Java KeyStore file for Java-based applications to authenticate with the database.

Full Detailed In-Depth Explanation:

When provisioning an Autonomous Container Database (ACD) on dedicated infrastructure, Oracle provides specific options for backup retention periods to balance data recovery needs with storage costs. According to the official Oracle documentation, the available backup retention periods for a dedicated ACD are:

7 days: This is the default retention period for a newly provisioned ACD.

15 days: An option for extended retention beyond the default.

60 days: The maximum supported retention period for ACDs, offering the longest recovery window.

The option of120 daysis not supported as a backup retention period for an Autonomous Container Database. This limitation is due to the design of the Autonomous Database service, which caps retention at 60 days to optimize storage and performance on dedicated Exadata infrastructure. Attempting to set a retention period beyond 60 days is not an available choice during provisioning. Users must select a retention period that meets their recovery point objectives (RPO) within these constraints, noting that longer retention increases storage usage and associated costs.

Full Detailed In-Depth Explanation:

Oracle Autonomous Database offers two primary services: Autonomous Data Warehouse (ADW) and Autonomous Transaction Processing (ATP), each optimized for different workloads. SQL hints are directives embedded in SQL statements to influence the optimizer’s execution plan. However, their handling differs between the services:

Autonomous Data Warehouse (ADW):ADW is designed for analytical workloads and data warehousing, where query performance is critical. To ensure optimal execution, ADW’s optimizer relies heavily on its own statistics and algorithms, ignoring SQL hints by default. This behavior prevents user-provided hints from overriding the automated optimization strategies tailored for complex analytical queries.

Autonomous Transaction Processing (ATP):ATP targets transactional workloads (OLTP) and provides more flexibility. It does not ignore hints by default, allowing developers and DBAs to use hints to fine-tune query execution plans for specific transactional needs.

Thus, only ADW ignores hints by default, making option C the correct answer. Options A and B are incorrect because ATP does not share ADW’s default behavior, and option D incorrectly identifies ATP as the service that ignores hints.