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SOA

35 SOA interview questions

Only coding challenges
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SOA Fundamentals


  • 1.

    What are the core principles of Service-Oriented Architecture (SOA)?

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  • 2.

    Can you describe the difference between SOA and a microservices architecture?

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  • 3.

    Explain the concept of a service contract in SOA.

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  • 4.

    How does SOA facilitate service reusability?

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  • 5.

    What is loose coupling in SOA and why is it important?

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  • 6.

    What do you understand by service orchestration and service choreography in the context of SOA?

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  • 7.

    How does SOA differ from traditional monolithic application architectures?

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  • 8.

    What role does a service registry play in SOA?

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Designing SOA-based Systems


  • 9.

    What factors do you consider when designing a service interface in SOA?

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  • 10.

    Explain how versioning of services is handled in a SOA environment.

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  • 11.

    Describe a scenario in which you might opt for synchronous communication over asynchronous in SOA.

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  • 12.

    What are some of the common data formats used for service communication in SOA?

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  • 13.

    Provide an example of how you would refactor a monolithic application into a SOA-based architecture.

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Implementing SOA


  • 14.

    What is an Enterprise Service Bus (ESB) and how does it support SOA?

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  • 15.

    How would you handle transaction management in a SOA system?

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  • 16.

    What strategies would you use to ensure high availability in a SOA deployment?

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  • 17.

    What is WS-Security and how does it relate to SOA?

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SOA Standards and Protocols


  • 18.

    What are the benefits of using standard protocols like SOAP or REST in SOA?

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  • 19.

    Explain the role of WSDL in SOA.

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  • 20.

    How does UDDI facilitate service discovery in SOA?

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  • 21.

    What is the significance of OASIS in the context of SOA?

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Securing SOA Applications


  • 22.

    What are the main security concerns in a SOA environment?

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  • 23.

    How would you approach identity management in SOA?

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  • 24.

    Can you explain the concept of security tokens in SOA?

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SOA Testing


  • 25.

    Describe your approach to testing services in SOA.

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  • 26.

    What are the challenges of testing in a SOA-based system compared to a monolithic one?

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  • 27.

    How would you perform load testing for an SOA service?

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Performance and Scalability


  • 28.

    How would you monitor the performance of services in SOA?

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  • 29.

    Describe a strategy to scale a service in a SOA system.

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  • 30.

    How do you manage service dependencies to avoid performance bottlenecks in SOA?

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SOA Governance


  • 31.

    What does governance mean in the context of SOA?

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  • 32.

    Describe a policy you might enforce as part of SOA governance.

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  • 33.

    Can you explain the purpose of a service level agreement (SLA) in a SOA context?

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Troubleshooting and Maintenance


  • 34.

    What steps would you take to troubleshoot a failing service in a SOA architecture?

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  • 35.

    How do you manage and maintain services throughout their lifecycle in a SOA infrastructure?

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