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UML Modeling and Design Patterns MCQs 2026

24 questions with detailed answers · 10 from past papers · 3 quiz batches available

📚 Software Engineering📄 10 Past-Paper Qs✓ Free · No Login Needed
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Read each question, think about the answer, then click Show Answer to reveal the correct option and explanation. Load 10 at a time so it stays manageable — perfect for one-topic study sessions on the bus or during a break.

Page 1 of 1Questions 1–10 of 24
  1. Q1hard

    Regarding Observer pattern in software engineering, the accurate statement is

    1. Aan unrelated hardware manufacturing step
    2. Ba UML modeling element or Gang of Four design pattern
    3. Ca purely financial accounting entry only
    4. Da marketing slogan without technical meaning
    💡 Explanation:

    Observer pattern is a recognized software engineering topic assessed in competitive exams.

  2. Q2medium

    Chain of Responsibility is best defined as

    1. Aan unrelated hardware manufacturing step
    2. Ba purely financial accounting entry only
    3. Ca UML modeling element or Gang of Four design pattern
    4. Da marketing slogan without technical meaning
    💡 Explanation:

    Chain of Responsibility is a recognized software engineering topic assessed in competitive exams.

  3. Q3hard

    Command pattern is best defined as

    1. Aan unrelated hardware manufacturing step
    2. Ba purely financial accounting entry only
    3. Ca marketing slogan without technical meaning
    4. Da UML modeling element or Gang of Four design pattern
    💡 Explanation:

    Command pattern is a recognized software engineering topic assessed in competitive exams.

  4. Q4Past Paper · PPSC/FPSC/NTSeasy

    Iterator pattern is best defined as

    1. Aan unrelated hardware manufacturing step
    2. Ba UML modeling element or Gang of Four design pattern
    3. Ca purely financial accounting entry only
    4. Da marketing slogan without technical meaning
    💡 Explanation:

    Iterator pattern is a recognized software engineering topic assessed in competitive exams.

  5. Q5medium

    Mediator pattern is best defined as

    1. Aan unrelated hardware manufacturing step
    2. Ba purely financial accounting entry only
    3. Ca UML modeling element or Gang of Four design pattern
    4. Da marketing slogan without technical meaning
    💡 Explanation:

    Mediator pattern is a recognized software engineering topic assessed in competitive exams.

  6. Q6Past Paper · PPSC/FPSC/NTSeasy

    UML deployment diagram is best defined as

    1. Aan unrelated hardware manufacturing step
    2. Ba purely financial accounting entry only
    3. Ca UML modeling element or Gang of Four design pattern
    4. Da marketing slogan without technical meaning
    💡 Explanation:

    UML deployment diagram is a recognized software engineering topic assessed in competitive exams.

  7. Q7hard

    UML component diagram is best defined as

    1. Aan unrelated hardware manufacturing step
    2. Ba UML modeling element or Gang of Four design pattern
    3. Ca purely financial accounting entry only
    4. Da marketing slogan without technical meaning
    💡 Explanation:

    UML component diagram is a recognized software engineering topic assessed in competitive exams.

  8. Q8medium

    UML state machine is best defined as

    1. Aan unrelated hardware manufacturing step
    2. Ba UML modeling element or Gang of Four design pattern
    3. Ca purely financial accounting entry only
    4. Da marketing slogan without technical meaning
    💡 Explanation:

    UML state machine is a recognized software engineering topic assessed in competitive exams.

  9. Q9Past Paper · PPSC/FPSC/NTSeasy

    UML activity diagram is best defined as

    1. Aan unrelated hardware manufacturing step
    2. Ba UML modeling element or Gang of Four design pattern
    3. Ca purely financial accounting entry only
    4. Da marketing slogan without technical meaning
    💡 Explanation:

    UML activity diagram is a recognized software engineering topic assessed in competitive exams.

  10. Q10Past Paper · PPSC/FPSC/NTShard

    UML sequence diagram is best defined as

    1. Aa UML modeling element or Gang of Four design pattern
    2. Ban unrelated hardware manufacturing step
    3. Ca purely financial accounting entry only
    4. Da marketing slogan without technical meaning
    💡 Explanation:

    UML sequence diagram is a recognized software engineering topic assessed in competitive exams.

  11. Q11Past Paper · PPSC/FPSC/NTSmedium

    UML class diagram is best defined as

    1. Aa UML modeling element or Gang of Four design pattern
    2. Ban unrelated hardware manufacturing step
    3. Ca purely financial accounting entry only
    4. Da marketing slogan without technical meaning
    💡 Explanation:

    UML class diagram is a recognized software engineering topic assessed in competitive exams.

  12. Q12medium

    Singleton pattern is best defined as

    1. Aan unrelated hardware manufacturing step
    2. Ba purely financial accounting entry only
    3. Ca UML modeling element or Gang of Four design pattern
    4. Da marketing slogan without technical meaning
    💡 Explanation:

    Singleton pattern is a recognized software engineering topic assessed in competitive exams.

  13. Q13hard

    Factory pattern is best defined as

    1. Aan unrelated hardware manufacturing step
    2. Ba UML modeling element or Gang of Four design pattern
    3. Ca purely financial accounting entry only
    4. Da marketing slogan without technical meaning
    💡 Explanation:

    Factory pattern is a recognized software engineering topic assessed in competitive exams.

  14. Q14Past Paper · PPSC/FPSC/NTSeasy

    Abstract Factory is best defined as

    1. Aan unrelated hardware manufacturing step
    2. Ba purely financial accounting entry only
    3. Ca UML modeling element or Gang of Four design pattern
    4. Da marketing slogan without technical meaning
    💡 Explanation:

    Abstract Factory is a recognized software engineering topic assessed in competitive exams.

  15. Q15Past Paper · PPSC/FPSC/NTSeasy

    Adapter pattern is best defined as

    1. Aa UML modeling element or Gang of Four design pattern
    2. Ban unrelated hardware manufacturing step
    3. Ca purely financial accounting entry only
    4. Da marketing slogan without technical meaning
    💡 Explanation:

    Adapter pattern is a recognized software engineering topic assessed in competitive exams.

  16. Q16medium

    Bridge pattern is best defined as

    1. Aa UML modeling element or Gang of Four design pattern
    2. Ban unrelated hardware manufacturing step
    3. Ca purely financial accounting entry only
    4. Da marketing slogan without technical meaning
    💡 Explanation:

    Bridge pattern is a recognized software engineering topic assessed in competitive exams.

  17. Q17hard

    Composite pattern is best defined as

    1. Aan unrelated hardware manufacturing step
    2. Ba UML modeling element or Gang of Four design pattern
    3. Ca purely financial accounting entry only
    4. Da marketing slogan without technical meaning
    💡 Explanation:

    Composite pattern is a recognized software engineering topic assessed in competitive exams.

  18. Q18Past Paper · PPSC/FPSC/NTSeasy

    Decorator pattern is best defined as

    1. Aan unrelated hardware manufacturing step
    2. Ba purely financial accounting entry only
    3. Ca UML modeling element or Gang of Four design pattern
    4. Da marketing slogan without technical meaning
    💡 Explanation:

    Decorator pattern is a recognized software engineering topic assessed in competitive exams.

  19. Q19medium

    Facade pattern is best defined as

    1. Aan unrelated hardware manufacturing step
    2. Ba purely financial accounting entry only
    3. Ca marketing slogan without technical meaning
    4. Da UML modeling element or Gang of Four design pattern
    💡 Explanation:

    Facade pattern is a recognized software engineering topic assessed in competitive exams.

  20. Q20hard

    Flyweight pattern is best defined as

    1. Aa UML modeling element or Gang of Four design pattern
    2. Ban unrelated hardware manufacturing step
    3. Ca purely financial accounting entry only
    4. Da marketing slogan without technical meaning
    💡 Explanation:

    Flyweight pattern is a recognized software engineering topic assessed in competitive exams.

  21. Q21Past Paper · PPSC/FPSC/NTSeasy

    Proxy pattern is best defined as

    1. Aa UML modeling element or Gang of Four design pattern
    2. Ban unrelated hardware manufacturing step
    3. Ca purely financial accounting entry only
    4. Da marketing slogan without technical meaning
    💡 Explanation:

    Proxy pattern is a recognized software engineering topic assessed in competitive exams.

  22. Q22Past Paper · PPSC/FPSC/NTSeasy

    UML use case is best defined as

    1. Aan unrelated hardware manufacturing step
    2. Ba UML modeling element or Gang of Four design pattern
    3. Ca purely financial accounting entry only
    4. Da marketing slogan without technical meaning
    💡 Explanation:

    UML use case is a recognized software engineering topic assessed in competitive exams.

  23. Q23hard

    Prototype pattern is best defined as

    1. Aa UML modeling element or Gang of Four design pattern
    2. Ban unrelated hardware manufacturing step
    3. Ca purely financial accounting entry only
    4. Da marketing slogan without technical meaning
    💡 Explanation:

    Prototype pattern is a recognized software engineering topic assessed in competitive exams.

  24. Q24medium

    Builder pattern is best defined as

    1. Aa UML modeling element or Gang of Four design pattern
    2. Ban unrelated hardware manufacturing step
    3. Ca purely financial accounting entry only
    4. Da marketing slogan without technical meaning
    💡 Explanation:

    Builder pattern is a recognized software engineering topic assessed in competitive exams.

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