PrepIQ Certified Full Stack Development Professional Ultimate Exam, Exams of Technology

Preparation focused on front-end and back-end development, databases, APIs, cloud deployment, security practices, and software engineering principles.

Typology: Exams

2025/2026

Available from 06/12/2026

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PrepIQ Certified Full Stack
Development Professional
Ultimate Exam
**Question 1. Which document formally defines the deliverables, timelines, and
out-of-scope items for a new system-integration project?**
A) Project Charter
B) Statement of Work (SOW)
C) Service Level Agreement (SLA)
D) Change Request (CR)
Answer: B
Explanation: The SOW outlines what will be delivered, the schedule, and explicitly
lists items that are not included, serving as the baseline for scope validation.
**Question 2. During project mobilization, selecting an offshore delivery center
primarily helps to:**
A) Increase on-site client interaction
B) Reduce overall labor cost while leveraging time-zone overlap
C) Eliminate the need for a Steering Committee
D) Ensure all code is written in a single programming language
Answer: B
Explanation: Offshore teams often provide cost advantages and, when coordinated
with nearshore/onshore teams, can maintain sufficient overlap for collaboration.
**Question 3. In a governance framework, the role of the PMO is most closely
associated with:**
A) Writing unit tests for developers
B) Managing the project schedule, budget, and reporting to the SteerCo
C) Designing the database schema
D) Conducting performance testing of the integration layer
Answer: B
Explanation: The Project Management Office (PMO) oversees project planning,
execution, monitoring, and communication with senior governance bodies.
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Development Professional

Ultimate Exam

Question 1. Which document formally defines the deliverables, timelines, and out-of-scope items for a new system-integration project? A) Project Charter B) Statement of Work (SOW) C) Service Level Agreement (SLA) D) Change Request (CR) Answer: B Explanation: The SOW outlines what will be delivered, the schedule, and explicitly lists items that are not included, serving as the baseline for scope validation. Question 2. During project mobilization, selecting an offshore delivery center primarily helps to: A) Increase on-site client interaction B) Reduce overall labor cost while leveraging time-zone overlap C) Eliminate the need for a Steering Committee D) Ensure all code is written in a single programming language Answer: B Explanation: Offshore teams often provide cost advantages and, when coordinated with nearshore/onshore teams, can maintain sufficient overlap for collaboration. Question 3. In a governance framework, the role of the PMO is most closely associated with: A) Writing unit tests for developers B) Managing the project schedule, budget, and reporting to the SteerCo C) Designing the database schema D) Conducting performance testing of the integration layer Answer: B Explanation: The Project Management Office (PMO) oversees project planning, execution, monitoring, and communication with senior governance bodies.

Development Professional

Ultimate Exam

Question 4. Which environment is typically used to validate that data migration scripts correctly transform production data before the final cut-over? A) Development B) Staging C) Production D) Sandbox Answer: B Explanation: Staging mirrors production data and configuration, allowing thorough validation of migration logic without impacting live systems. Question 5. When choosing a delivery methodology for a client with mature DevOps practices and a need for rapid releases, the most appropriate choice is: A) Waterfall B) Agile (Scrum) with CI/CD pipelines C) PRINCE D) Spiral model Answer: B Explanation: Agile combined with continuous integration and delivery aligns with mature DevOps environments, enabling quick, incremental releases. Question 6. In a hybrid methodology, which activity is typically performed at the end of each sprint to ensure alignment with the overall project plan? A) Detailed requirements gathering for the next phase B) Sprint Review and backlog refinement against the high-level Work Breakdown Structure (WBS) C) Final user acceptance testing of the entire system D) Release of the full product to production Answer: B Explanation: Hybrid approaches retain Agile sprint reviews while checking progress against the overarching WBS and project timeline.

Development Professional

Ultimate Exam

Question 10. An API gateway in an integration architecture primarily provides: A) Direct database access for all consumers B) Centralized routing, security, and rate-limiting for APIs C) Batch processing of large files D) Automated UI testing capabilities Answer: B Explanation: API gateways handle request routing, authentication, throttling, and other cross-cutting concerns for services. Question 11. When using MuleSoft as middleware, the primary component that defines how messages are transformed between systems is called: A) Connector B) Flow C) DataWeave script D) Mule Domain Answer: C Explanation: DataWeave is MuleSoft’s transformation language used to map and convert data formats within a flow. Question 12. System Integration Testing (SIT) differs from User Acceptance Testing (UAT) in that SIT is performed: A) By end users to validate business processes B) By developers/testers to verify interfaces between components C) After production deployment D) Only for performance metrics Answer: B Explanation: SIT focuses on verifying that integrated components communicate correctly, whereas UAT validates that the system meets business needs.

Development Professional

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Question 13. Which metric is most useful for assessing the health of a defect backlog during a large integration project? A) Lines of code per developer B) Defect density (defects per KLOC) and aging (average days open) C. Number of user stories completed per sprint D. CPU utilization of the middleware server Answer: B Explanation: Defect density indicates quality, while aging shows how quickly issues are being resolved, both critical for go-live readiness. Question 14. In financial tracking, “Cost to Serve” most accurately refers to: A) The total revenue generated by the project B) All direct and indirect expenses required to deliver the solution to the client C) The amount billed to the client for the initial SOW D) The cost of the hardware purchased for the project Answer: B Explanation: Cost to Serve includes labor, tools, licenses, and any other expenses needed to deliver and support the solution. Question 15. An “Estimate at Completion” (EAC) that is higher than the original budget signals: A) Project is under-budget B) Scope has expanded or productivity is lower than planned C) All resources are idle D) The client has reduced the contract value Answer: B Explanation: A higher EAC indicates that projected costs exceed the baseline, often due to scope creep, re-work, or inefficiencies.

Development Professional

Ultimate Exam

Explanation: Revenue is recognized only after the client formally accepts the milestone; delayed sign-off postpones recognition. Question 19. A common technical-debt risk in a rapidly built integration layer is: A) Using a fully documented API specification B) Hard-coding endpoint URLs in the source code C. Implementing automated unit tests D. Deploying to a container orchestration platform Answer: B Explanation: Hard-coded values hinder maintainability and scalability, creating technical debt that must be addressed later. Question 20. The Change Request (CR) process helps control scope creep by requiring: A) Immediate implementation of any client suggestion B) Formal impact analysis on schedule, budget, and resources before approval C. Automatic budget increase for every change D. Skipping quality checks to speed delivery Answer: B Explanation: A CR forces the team to assess the effect of a change on cost, time, and resources, ensuring informed decisions. Question 21. In a crisis communication scenario, the most effective first step when a critical milestone is at risk is to: A) Blame the offshore team B) Notify the client’s Delivery Lead with a concise status and proposed mitigation plan C. Cancel all upcoming meetings D. Hide the issue until after go-live

Development Professional

Ultimate Exam

Answer: B Explanation: Transparent, timely communication with a clear mitigation plan builds trust and enables collaborative problem-solving. Question 22. A “Go/No-Go” decision during cutover planning is typically based on: A) The color of the project’s PowerPoint slides B) Completion of data-migration validation, successful smoke tests, and readiness sign-offs C. The number of developers present in the office D. The day of the week the cutover occurs Answer: B Explanation: Objective criteria such as validated data migration, smoke test results, and stakeholder sign-offs determine whether to proceed. Question 23. Hypercare support after go-live is intended to: A) Permanently replace the client’s support team B) Provide intensified monitoring, rapid issue resolution, and knowledge transfer for a defined period C. Shut down all monitoring tools D. Remove all documentation from the knowledge base Answer: B Explanation: Hypercare offers heightened support to stabilize the new system, resolve early issues, and transition responsibilities. Question 24. Service transition handover documentation should include all EXCEPT: A) Detailed run-books and escalation paths B. Source code repository URLs and branch strategy C. The project manager’s personal email password

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D. Updated documentation and release notes Answer: C Explanation: Production deployment typically requires stakeholder approval; the DoD ensures quality but does not bypass sign-off. Question 28. When estimating effort for a user story involving a third-party API integration, which factor should be added to the baseline estimate? A. Number of coffee breaks the developer plans to take B. Potential latency and error-handling complexities C. The developer’s favorite programming language D. The color scheme of the UI Answer: B Explanation: Integrating external APIs introduces latency, authentication, and error-handling considerations that increase effort. Question 29. Which testing type is specifically designed to verify that the system can handle the expected peak load after integration? A. Unit Testing B. Performance Testing (Load/Stress) C. Smoke Testing D. Regression Testing Answer: B Explanation: Performance testing evaluates system behavior under high load, ensuring scalability and stability for production traffic. Question 30. In a CI/CD pipeline, the stage that automatically runs static code analysis to enforce coding standards is called: A. Deploy B. Build

Development Professional

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C. Lint/Static Analysis D. Release Answer: C Explanation: Linting or static analysis checks code quality before compilation, catching violations early in the pipeline. Question 31. Which of the following is a key benefit of containerizing micro-services in a full-stack solution? A. Eliminates the need for any database B. Provides consistent runtime environments and simplifies scaling C. Guarantees zero bugs in the code D. Removes the need for version control Answer: B Explanation: Containers encapsulate dependencies, ensuring consistency across environments and enabling easy horizontal scaling. Question 32. When designing a database schema for an e-commerce platform, which normal form eliminates transitive dependencies? A. First Normal Form (1NF) B. Second Normal Form (2NF) C. Third Normal Form (3NF) D. Boyce-Codd Normal Form (BCNF) Answer: C Explanation: 3NF removes transitive dependencies, ensuring that non-key attributes depend only on the primary key. Question 33. A “soft delete” in a relational database is implemented by: A. Physically removing the row from the table B. Setting a Boolean “isDeleted” flag instead of deleting the row

Development Professional

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C. Man-in-the-Middle (MITM) D. Directory Traversal Answer: B Explanation: Direct concatenation allows attackers to inject malicious SQL, compromising data confidentiality and integrity. Question 37. In a RESTful API, which HTTP method should be used to partially update a resource? A. POST B. PUT C. PATCH D. DELETE Answer: C Explanation: PATCH applies partial modifications to a resource, whereas PUT replaces the entire resource representation. Question 38. Which cloud service model provides the greatest level of control over the runtime environment? A. SaaS (Software-as-a-Service) B. PaaS (Platform-as-a-Service) C. IaaS (Infrastructure-as-a-Service) D. FaaS (Function-as-a-Service) Answer: C Explanation: IaaS offers virtual machines and networking control, allowing the team to configure OS, middleware, and runtime. Question 39. When implementing OAuth 2.0 for API authentication, the “access token” is typically: A. A long-lived password stored on the client

Development Professional

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B. A short-lived, signed token used to authorize API calls C. The client’s private RSA key D. A database connection string Answer: B Explanation: Access tokens are time-limited credentials that grant API access without exposing user credentials. **Question 40. Which of the following best describes “idempotent” HTTP methods? ** A. Methods that can be called only once per session B. Methods that produce the same result no matter how many times they are executed with the same input C. Methods that always modify server state D. Methods that require a request body Answer: B Explanation: Idempotent methods (GET, PUT, DELETE) yield identical outcomes on repeated calls with identical parameters. Question 41. In a DevOps culture, the “Shift-Left” testing approach means: A. Performing testing only after deployment B. Moving testing activities earlier in the development lifecycle C. Deferring security testing to the operations team D. Conducting testing on the left side of the office Answer: B Explanation: Shift-Left encourages early detection of defects, reducing cost and rework by testing during design and coding phases. Question 42. Which metric is most appropriate for measuring the speed of delivering value in an Agile project?

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A. feature/* B. develop C. release/* D. hotfix/* Answer: C Explanation: Release branches allow final polishing, bug fixes, and versioning before merging into master/main for production. Question 46. Which of the following is a primary advantage of using serverless functions (e.g., AWS Lambda) for lightweight integration tasks? A. Unlimited execution time for long-running jobs B. Automatic scaling and pay-per-use pricing model C. Direct access to the underlying operating system D. Guaranteed single-tenant performance Answer: B Explanation: Serverless platforms automatically scale based on demand and charge only for actual compute time used. Question 47. In a typical three-tier web application, the “Business Logic” layer is most commonly implemented using: A. HTML and CSS B. RESTful APIs or service classes in a backend language (e.g., Java, Node.js) C. Database stored procedures only D. Network routers Answer: B Explanation: The business logic layer encapsulates core processing, often exposed via APIs built with backend technologies.

Development Professional

Ultimate Exam

Question 48. Which of the following is a recommended practice for handling sensitive configuration values (e.g., API keys) in CI/CD pipelines? A. Hard-code them in source code B. Store them in a secured secret manager and inject at runtime C. Commit them to the public repository with base64 encoding D. Write them in plain text on the build server’s desktop Answer: B Explanation: Secret managers (e.g., Vault, AWS Secrets Manager) protect credentials and provide controlled, audited access. Question 49. When performing regression testing after an integration patch, the most efficient approach is to: A. Re-run every unit test from scratch B. Execute an automated test suite that covers previously passed end-to-end scenarios C. Manually test only the changed API endpoint D. Skip testing because the patch is small Answer: B Explanation: Automated regression suites quickly verify that existing functionality remains intact after changes. Question 50. A “burn-down chart” in Scrum visualizes: A. The cumulative budget spent over time B. Remaining work (story points) versus time in a sprint C. Number of bugs introduced per day D. Team members’ vacation days Answer: B Explanation: The chart shows how much work remains, helping the team track progress toward the sprint goal.

Development Professional

Ultimate Exam

Answer: B Explanation: The QA Lead ensures that comprehensive test cases cover the interactions between systems during SIT. Question 54. When a defect is classified as “Severity 1 – Critical,” the expected response time is: A. Within 5 business days B. Immediate (within 1-2 hours) and a fix before the next release C. After the project is completed D. Only during scheduled maintenance windows Answer: B Explanation: Critical defects require rapid attention to prevent major impact on production or go-live. Question 55. Which of the following tools is most commonly used for tracking work items, defects, and sprint progress in an Agile SI project? A. Microsoft Project B. Azure DevOps (ADO) or Jira C. Adobe Photoshop D. Google Slides Answer: B Explanation: ADO and Jira provide integrated backlog, sprint, and defect management capabilities suited for Agile. Question 56. In financial terms, “bench” refers to: A. The list of approved third-party vendors B. Unassigned billable resources who are waiting for allocation C. The final production environment D. The set of test cases for performance testing

Development Professional

Ultimate Exam

Answer: B Explanation: Bench resources are employees not currently assigned to a billable project, representing a cost that must be managed. Question 57. A “Scope Creep” scenario is best prevented by: A. Allowing unlimited changes as the client requests them B. Enforcing a formal change control process with impact analysis and approval C. Ignoring all client feedback after the project starts D. Adding extra developers without adjusting the schedule Answer: B Explanation: Formal change control ensures any new work is evaluated for cost, schedule, and resource impact before acceptance. Question 58. When a third-party vendor fails to meet a contractual API SLA, the risk mitigation strategy should include: A. Immediate termination of the contract without notice B. Implementing a fallback or cache mechanism and escalating the issue per the vendor management plan C. Ignoring the failure and proceeding as normal D. Redesigning the entire integration architecture overnight Answer: B Explanation: A fallback mitigates impact while escalation follows contractual remedies, balancing continuity and risk. Question 59. Which Agile ceremony is primarily used to inspect the completed work and adapt the product backlog? A. Sprint Planning B. Daily Stand-up C. Sprint Review D. Sprint Retrospective