Die Oracle 1Z0-931-26 Zertifizierungsprüfung ist sehr schwierig. Obwohl die Oracle 1Z0-931-26 Prüfung sehr schwer ist, gibt es noch viele Prüfungsanmelder. Warum? Weil Oracle 1Z0-931-26 Prüfung eine sehr wichtige Prüfung. Für ITer gibt es negativen Einfluss für die Arbeit. Diese Zertifizierung können Ihnen viele Vorteile bringen. Und es kann auch Ihnen erhöhte Chance schaffen. Zusammenfassend nehmen Oracle 1Z0-931-26 Prüfung großen Einfluss auf Ihre Karriere. Wollen Sie diese so wichtige Prüfung ablegen?
| Section | Weight | Objectives |
|---|---|---|
| AI Features and Capabilities | 30% | - Configure and use AI Vector Search - Implement Select AI for natural language to SQL generation - Use Oracle Machine Learning within Autonomous Database - Apply AI-assisted performance tuning and optimization |
| Database Management and Operations | 25% | - Configure auto-scaling and storage management - Perform patching, upgrades and lifecycle management - Implement backup, recovery and high availability strategies - Monitor and manage database performance and resources |
| Autonomous Database Architecture and Provisioning | 25% | - Provision and configure Autonomous Database on shared infrastructure - Provision and configure Autonomous Database on dedicated infrastructure - Integrate Autonomous Database with Oracle Cloud Infrastructure services - Describe Autonomous Database architecture and core components |
| Security, Integration and Data Management | 20% | - Load, migrate and integrate data from various sources - Implement data encryption and security controls - Configure identity and access management - Use Autonomous Database tools for development and administration |
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79. Frage
Which statement is true about OCPUs and storage when you choose to scale your Autonomous Database?
Antwort: A
Begründung:
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.
80. Frage
Which two optimizations are different between Autonomous Data Warehouse and Autonomous Transaction Processing? (Choose two.)
Antwort: A,B
Begründung:
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.
81. Frage
Your customer wants to permanently disable scheduled maintenance on Autonomous Dedicated Infrastructure to keep their current database version. How can they achieve this?
Antwort: B
Begründung:
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.
82. Frage
You are the admin user of an Autonomous Database (ADB) instance. A new business analyst has joined the team and would like to explore ADB tables using SQL Developer Web. What steps do you need to take?
Antwort: D
Begründung:
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://<adb-host>/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.
83. Frage
Which three event types are supported for Autonomous Database?
Antwort: A,B,E
Begründung:
Full Detailed In-Depth Explanation:
Supported events:
A: True. Marks the start of maintenance.
B: False. Not a recognized event type.
C: True. Indicates compartment change start.
D: False. IORM updates are internal, not event-tracked.
E: True. Signals termination completion.
84. Frage
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