JNTU Kakinada B.Tech 1st Semester Model paper

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1.
(i) What is recursive function? What is drawback of using recursion?

(ii) Write program to show the usefulness of getch() and getche().

(iii) How are scope rules associated with variables?

(iv) What is pointer to constant and constant pointer? Are they both same or different.

(v) Define an array of structure for reading and printing a character, integer and float value.
JNTUK B.Tech 1st SEM paper
1.a) Explain the common mechanisms in the UML.
b) What is an abstraction? How do you represent abstraction using UML.
c) When do use sequence diagrams?

2.a) How to model a non software things.
b) Distinguish between generalization and association. Discuss their UML modeling.

3. Draw a state chart diagram to identify tokens while passing a language.

4.a) Illustrate modeling interfaces in a system effectively.
b) What is a dynamic behavior? How to model the dynamic behavior of an element?

5. Discuss the UML’s extensibility mechanisms.

6. Select an application in a university environment and model it with different diagrams.

7. a) When do you use state modeling and component modeling? Give an example.
b) Model an on-line e-mail system using sequence diagram.

8. Write short note on the following:
a) Architecture-centric process
b) The generic iteration flow
c) Call back mechanism.

1.a) Define
(i) Object (ii) Class (iii) Interface (iv) Component
b) Explain the significance of protected, public and private access specifiers briefly.
c) Contrast: Object Vs Object based

2. Define the following:
(a) Software architecture (b) Active class and its UML notation.
(c) Usecase and its UML notation (d) Liskov’s substitution principle
(e) Using relationship (f) Runtime polymorphism
(g) UML (h) Role

3.a) Enumerate the steps to forward engineer a class diagram.
b) Enumerate the steps to reverse engineer a class diagram.
c) What are forward engineering and reverse engineering?

4.a) Define Use case. What are the uses of Use cases?
b) Define actor. Illustrate actor specialization and Use case specialization giving UML notation.
c) Describe the Use case “Validate User” in modeling an ATM system.

5. Enumerate the steps to model object structures. Illustrate with an object diagram.

6.a) How is recursion represented in a sequence diagram?
b) Explain the following with regard to interraction diagrams.
(i) Object live line (ii) <<create>> and <<destroy>> messages
(iii) Focus of control (iv) Dewey decimal numbering
(v) Nesting of tours of control (vi) Semantic equivalence.

7.a) Enumerate the steps to model the life time of an object.
b) Compare: Substances, nested states, Composite state.

8.a) What are the properties of a well-structured component diagram?
b) What are the contents, common properties and common uses of component diagrams? Explain.