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Oracle 1Z0-931-25 Exam Syllabus Topics:

Topic
Details

Topic 1

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 2

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.

Topic 3

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 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 (Q82-Q87):

NEW QUESTION # 82
Which two optimizations are different between Autonomous Data Warehouse and Autonomous Transaction Processing? (Choose two.)

A. Memory Usage
B. Data Organization
C. Undo Management
D. Backup Retention

Answer: A,B

Explanation:
Autonomous Data Warehouse (ADW) and Autonomous Transaction Processing (ATP) are optimized for different workloads, reflected in their configurations. The two differing optimizations are:
Memory Usage (A): ADW and ATP allocate memory differently to suit their purposes. ADW prioritizes a larger data cache (part of the SGA) to keep more data in memory, boosting analytical query performance (e.g., aggregations over millions of rows). For example, a SELECT SUM(sales) GROUP BY region runs faster with more cached data. ATP, conversely, balances memory across the SGA and PGA for transactional workloads, emphasizing concurrency and quick row-level operations (e.g., UPDATE orders SET status = 'shipped'). This difference ensures ADW excels at scan-heavy analytics, while ATP handles high-throughput updates.
Data Organization (B): ADW uses a columnar storage format (e.g., Hybrid Columnar Compression) optimized for analytics, storing data by column to speed up aggregations and reduce I/O (e.g., scanning only the sales column for a SUM). ATP uses a row-based format suited for OLTP, enabling fast single-row access and updates (e.g., retrieving or modifying a specific order_id). For instance, inserting a row in ATP is efficient due to row storage, while ADW's columnar format accelerates SELECT AVG(price) FROM products.
The incorrect options are:
Backup Retention (C): Both ADW and ATP use the same automatic backup system (via Oracle's Automatic Workload Repository), with a default 60-day retention adjustable by users. There's no optimization difference here; it's a shared managed feature.
Undo Management (D): Both databases use Oracle's Flashback technology for undo (e.g., rolling back transactions or querying past states), with retention periods set similarly. Undo is managed automatically in both, not optimized differently.
These optimizations tailor ADW for analytics and ATP for transactions, despite their shared autonomous foundation.

NEW QUESTION # 83
Which statement is FALSE about setting up compartment quotas?

A. Compartment quotas use policies that allow allocation of resources with a high level of flexibility.
B. You cannot manage quotas in a compartment unless you belong to a group that has the correct permissions.
C. Compartment quotas cannot be set on the root compartment.
D. Quotas set on a parent compartment override quotas set on child compartments.

Answer: C

Explanation:
Compartment quotas in Oracle Cloud Infrastructure (OCI) manage resource allocation:
Correct Answer (D): "Compartment quotas cannot be set on the root compartment" is false. Quotas can be applied to any compartment, including the root compartment, to limit resource usage tenancy-wide. While direct quotas on the root are less common (child compartment quotas are typically used), it's technically possible via OCI policies.
True Statements:
A: Quotas offer flexible resource limits (e.g., OCPUs, storage) via policy statements.
B: Parent compartment quotas take precedence over child quotas, enforcing hierarchical control.
C: Managing quotas requires appropriate IAM permissions (e.g., manage quotas), ensuring security.
This flexibility supports granular resource management across the tenancy.

NEW QUESTION # 84
Where can a user's public SSH key be added on the Oracle Cloud Infrastructure Console in order to execute API calls?

A. SSH keys cannot be added from console. They have to be added using REST APIs only
B. Navigate to Identity, select Users panel on the console and select "Add Public Key"
C. SSH keys are not required in Oracle Cloud Infrastructure
D. On the Autonomous Database Console

Answer: B

Explanation:
SSH keys in OCI are used for secure access, but their role in API calls needs clarification. The correct answer is:
Navigate to Identity, select Users panel on the console and select "Add Public Key" (D): This is the correct process, but with a caveat-it's about API authentication, not SSH for API calls per se. In OCI, API calls are authenticated using API keys (RSA key pairs), not SSH keys directly. To enable API access for a user, you generate a public/private key pair (e.g., using openssl), then add the public key in the OCI console:
Go to "Identity & Security" > "Users."
Select the user (e.g., john.doe).
Under "API Keys," click "Add API Key."
Upload the public key (e.g., ~/.oci/oci_api_key_public.pem).
This associates the key with the user, allowing API calls (e.g., oci db autonomous-database list) authenticated via the private key and config file (e.g., ~/.oci/config). The question's phrasing ("SSH key") likely misuses terminology, intending "API key," as SSH keys are for compute instance access, not APIs. For example, a user might add a key to call the ADB API, securing requests with a signature.
The incorrect options are:
On the Autonomous Database Console (A): The ADB console manages database-specific settings (e.g., wallets), not user API keys, which are handled at the tenancy level under Identity.
SSH keys are not required in Oracle Cloud Infrastructure (B): False in general-SSH keys are needed for compute instances-but misleading here, as API calls use API keys, not SSH keys. Authentication (e.g., via tokens or keys) is required for APIs.
SSH keys cannot be added from console. They have to be added using REST APIs only (C): False. The console supports adding API keys under the Users panel; REST APIs (e.g., CreateApiKey) are an alternative, not the only method.
The correct path reflects OCI's user management for API access, despite the SSH terminology confusion.

NEW QUESTION # 85
Your company has a .NET application and wants to deploy it on Autonomous Database (ADB). What software is used to connect to ADB from the .NET application?

A. SQL*Plus
B. Oracle Data Access Components for Windows
C. Java
D. You cannot use .NET with ADB

Answer: B

Explanation:
Connecting a .NET application to Autonomous Database (ADB) requires a specific client library compatible with Oracle's database connectivity standards. The correct software is:
Oracle Data Access Components for Windows (D): Oracle Data Access Components (ODAC) for Windows is the recommended software for .NET applications to connect to ADB. ODAC includes the Oracle Data Provider for .NET (ODP.NET), which supports ADO.NET interfaces for database access. It enables .NET developers to use familiar APIs (e.g., OracleConnection, OracleCommand) to interact with ADB over Oracle Net Services, leveraging the secure TLS connection required by ADB (via the client wallet). For example, a .NET app might use ODAC to execute SELECT * FROM customers against an ADB instance, authenticating with a wallet downloaded from the OCI console. ODAC supports both managed and unmanaged modes: the managed ODP.NET is lightweight and assembly-based, while the unmanaged version integrates with Oracle Client libraries. To set it up, developers install ODAC (e.g., via NuGet or Oracle's download site), configure the wallet (e.g., tnsnames.ora), and write code like:
csharp
CollapseWrapCopy
using Oracle.ManagedDataAccess.Client;
string connString = "User Id=USER1;Password=pwd;Data Source=adb_high";
using (OracleConnection conn = new OracleConnection(connString)) {
conn.Open();
// Query execution here
}
This ensures seamless integration with ADB's managed environment, supporting features like connection pooling and high performance.
The incorrect options are:
SQL*Plus (A): SQL*Plus is a command-line tool for SQL execution and administration, not a programmatic library for .NET applications. It's unsuitable for embedding in a .NET app, as it lacks API integration and is meant for manual use (e.g., running scripts like SELECT * FROM table;).
You cannot use .NET with ADB (B): This is false. .NET is fully supported via ODAC, allowing applications (e.g., ASP.NET web apps or Windows services) to connect to ADB just like any Oracle database, provided the wallet and credentials are configured.
Java (C): Java uses JDBC (e.g., Oracle JDBC Driver) for database connectivity, not .NET. While JDBC works with ADB for Java apps, it's irrelevant for a .NET environment, where ODAC is the standard.
ODAC's robust support for .NET makes it the definitive choice, bridging Microsoft's ecosystem with Oracle's cloud database.

NEW QUESTION # 86
Which is an Autonomous Database critical event?

A. Maintenance Begin
B. Schedule Maintenance Warning
C. Database Connection
D. New Maintenance Schedule
E. Admin Password Warning

Answer: E

Explanation:
Critical events in Autonomous Database are those requiring immediate attention due to potential security or operational impacts:
Correct Answer (D): "Admin Password Warning" is a critical event because it indicates the admin password is nearing expiration (typically within 7 days). If not updated, it could lock out administrative access, posing a security and availability risk.
Incorrect Options:
A: "Maintenance Begin" is an operational event, not critical, as it's planned and managed by Oracle.
B: "Database Connection" is a routine activity, not an event requiring urgent action.
C: "Schedule Maintenance Warning" is informational, not critical, as it's a precursor to planned maintenance.
E: "New Maintenance Schedule" is administrative, not an immediate threat.
This ensures timely response to security-critical situations.

NEW QUESTION # 87
......

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