As an experienced Oracle Fusion Technical consultant, I recognize the critical need for mastering these skills to excel in today’s competitive IT landscape. Oracle Fusion Technical equips organizations to optimize integrations, tailor applications, and boost functionality using powerful cloud-based solutions.

Whether you're gearing up for an interview or striving to enhance your knowledge, this carefully crafted collection of interview questions covers essential concepts, technical scenarios, and proven best practices. Drawing from real-world expertise and problem-solving, these questions are designed to help you gain the confidence and proficiency to thrive in your Oracle Fusion Technical journey.

Are you preparing for an Oracle Fusion Cloud technical interview? Mastering the integration aspects is crucial for success. Below, we’ve compiled a list of top Oracle Fusion technical interview questions with comprehensive answers to help you excel in your interview preparation.

1. What are Oracle Fusion Middleware components used in integration?

A: Oracle Fusion Middleware components include:

• Oracle SOA Suite: Supports integration by enabling service orchestration.
• Oracle Integration Cloud (OIC): Facilitates seamless integration between Oracle Fusion and third-party applications.
• Oracle WebLogic Server: Supports the execution of Fusion applications.
• Oracle Business Process Management Suite: Provides workflow and business process management capabilities.

2. What is Oracle Integration Cloud (OIC), and how does it support Oracle Fusion integrations?

A: Oracle Integration Cloud (OIC) is a cloud-based integration service that allows seamless connection between Oracle Fusion applications and external systems. Key features include:

• Prebuilt Adapters: For Oracle ERP, HCM, and other SaaS applications.
• Orchestration: Simplifies process automation.
• Mapping: Data transformation between source and target systems.
• Monitoring: Real-time dashboards for tracking integration flows.

3. How do you perform data extraction from Oracle Fusion Cloud?

A: Data extraction can be achieved using:

• BI Publisher Reports: To generate and schedule data extracts.
• OTBI (Oracle Transactional Business Intelligence): Provides ad-hoc reporting and analysis.
• REST and SOAP APIs: Allow data access through programming.
• File-Based Data Export (FBDI): For bulk data extraction and import.

4. What are FBDI templates, and why are they used?

A: File-Based Data Import (FBDI) templates are preconfigured Excel files used for bulk data uploads into Oracle Fusion Cloud. They support:

• Mass Data Entry: Upload large datasets efficiently.
• Data Validation: Ensure data accuracy through pre-defined structures.
• Supported Modules: Commonly used in Financials, SCM, and HCM.

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5. What are Oracle Fusion’s Web Services, and how are they used in integrations?

A: Oracle Fusion’s Web Services include SOAP and REST APIs that allow communication with external systems. Use cases:

• Data Synchronization: Keep systems updated in real time.
• Custom Integrations: Extend functionality by integrating with other tools.
• Service Discovery: Use the Service Catalog to explore available APIs.

6. Explain the role of Oracle ESS jobs in integrations.

A: Oracle Enterprise Scheduler Service (ESS) jobs automate tasks like:

• Report Generation: Scheduling BI reports for integration purposes.
• Data Import/Export: Automating FBDI uploads or extracts.
• Custom Scripts: Triggering PL/SQL scripts for advanced data processing.

7. What is the difference between SOAP and REST APIs in Oracle Fusion?

A:

SOAP APIs:

• Protocol-based, with XML messaging.
• Suitable for secure and complex integrations.

REST APIs:

• Lightweight and HTTP-based.
• Ideal for web and mobile applications due to JSON support.

8. How do you secure Oracle Fusion integrations?

A: Key methods include:

• OAuth Tokens: For REST API authentication.
• WS-Security Policies: For SOAP-based integrations.
• Roles and Privileges: Limit access to APIs and ESS jobs.
• Encryption: Encrypt important information when it's in transit and at rest.

9. What is the purpose of Business Events in Oracle Fusion?

A: Business Events are triggers for external actions. Examples:

• Real-time Notifications: Notify external systems when a record is updated.
• Process Automation: Trigger workflows in OIC.
• Event Queues: Use Oracle Messaging Cloud for reliable event delivery.

10. What are prebuilt integration adapters, and how do they help?

A: Prebuilt adapters in Oracle Integration Cloud simplify connectivity. Examples include:

• ERP Adapter: Connects Oracle Fusion ERP.
• HCM Adapter: For Oracle HCM Cloud.
• FTP Adapter: Transfers files between systems.
• Salesforce Adapter: Links Oracle Fusion with Salesforce.

11. How do you handle errors in Oracle Fusion integrations?

A: Common practices include:

• Integration Monitoring: Use OIC’s tracking tools.
• Error Notifications: Configure alerts for failures.
• Retry Mechanisms: Handle transient errors automatically.
• Logs: Analyze error logs in WebLogic or OIC.

12. What is HDL, and how is it different from FBDI?

A: HDL (HCM Data Loader) is used in Oracle HCM Cloud to load bulk data. Unlike FBDI, which is used across modules, HDL is specific to HCM data like employees and payroll.

13. Can you integrate Oracle Fusion with third-party payroll systems? How?

A: Yes, using:

• Payroll Interface (PI): Standard integration templates.
• REST/SOAP APIs: For custom integrations.
• Flat File Exports: Data exchange through SFTP.

14. What is the role of Lookups in Oracle Fusion integrations?

A: Lookups map external system codes to Oracle Fusion values. Benefits:

• Data Consistency: Ensure accurate data translation.
• Easy Maintenance: Update mappings without altering code.

15. How do you migrate integrations between environments?

A: Migration steps include:

• Export/Import: Use OIC’s export/import feature.
• Configuration Packages: Transfer setup data.
• Version Control: Maintain integration versions.

16. What is a Data Loader Cloud Service (DLC)?

A: DLC facilitates large-scale data uploads into Oracle Fusion. Key features:

• Supports Multiple Modules: ERP, HCM, etc.
• Asynchronous Processing: Efficient for large data sets.

Final Tips for Oracle Fusion Technical Interview Preparation

• Understand Key Concepts: Focus on APIs, FBDI, OIC, and ESS.
• Hands-On Practice: Build sample integrations to strengthen knowledge.
• Review Documentation: Oracle’s official guides are invaluable resources.
• Mock Interviews: Practice with peers to boost confidence.

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