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3. Which of the following is known as natural language?
a. 3 GL b. 4 GL
c. Both a and b d. 5 GL
4. Which of the following paradigm follows the top-down approach?
a. Procedural-Oriented Programming b. Object-Oriented programming
c. Both a and b d. None of these
5. Which of the following is an example of Procedure-Oriented language?
a. C++ b. Java
c. FORTRAN d. None of these
6. Method and variables are enclosed within a unit called ………………….
a. Class b. Data hiding
c. Inheritance d. Data Abstraction
7. Which of the following principle shows the essential features without knowing the background details?
a. Encapsulation b. Data Abstraction
c. Inheritance d. Polymorphism
8. Wrapping up of data and Member functions together into a single unit is called ………………….
a. Encapsulation b. Data Abstraction
c. Inheritance d. Polymorphism
9. Which of the following principle uses the concept of reusability?
a. Encapsulation b. Data Abstraction
c. Inheritance d. Polymorphism
10. Suppose data member of shape class is being used by Circle class. This is the concept of ………………….
a. Encapsulation b. Data Abstraction
c. Inheritance d. Polymorphism
Answers
1. b 2. c 3. d 4. a 5. c 6. a 7. b 8. a 9. c 10. c
B. Fill in the blanks.
1. Procedure-oriented program focuses on ………………….
2. The word Polymorphism comes from the Greek vocabulary meaning ………………….
3. An object is identified by its ………………… and ………………….
4. ………………… needs more lines of code than procedural-oriented program code.
5. ………………… means combining the code and data into a single unit.
6. Coding is written once and can be used multiple times using different objects is the concept of ………………….
7. Object-oriented programming follows ………………… approach.
8. Common structure is usually called a blueprint and the objects that are created called ………………….
Answers
1. methods or procedures 2. many forms 3. characteristics, behaviour 4. Object-oriented program
5. Encapsulation 6. Re-usability 7. Bottom-Up 8. instances
C. Answer the following questions.
1. What do you mean by Computer language? Name any two computer languages.
Ans. Computer language is an interface between a computer and human beings. It is a set of words, symbols and codes that
the computer can understand.
22 Touchpad Computer Applications-IX

