Part 1: 4-Software Design and...

Question 1

1. Which of the following are objectoriented concepts?
   (a) Modules and interfaces
   (b) Modules and information hiding
   (c) Classes, information hiding, and
   inheritance
   (d) Concurrency and information hiding

Answer 1

C

Question 2

2. Which of the following is a characteristic of an object?
   (a) A function or subroutine
   (b) A module
   (c) Groups data and procedures that
   operate on the data

Answer 2

C

Question 3

3. What is a class?
   (a) An object instance
   (b) The implementation of the object
   (c) A collection of objects with the
   same characteristics
   (d) A collection of objects with different characteristics

Answer 3

C

Question 4

4. What is an operation (also known as
   method) of a class?
   (a) Specification and the implementation of a function performed by a
   class
   (b) Specification and the implementation of a subroutine provided by a
   class
   (c) Specification and the implementation of a function or procedure provided by a class
   (d) Specification and the implementation of an interface provided by a
   class

Answer 4

C

Question 5

5. What is the signature of an operation?
   (a) The operation’s name
   (b) The operation’s function or subroutine
   (c) The operation’s name, parameters,
   and return value
   (d) The object’s interface

Answer 5

C

Question 6

6. What is the interface of a class?
   (a) The signature of a class
   (b) The specification of operations provided by the class
   (c) The internals of the class
   (d) The implementation of the class

Answer 6

B

Question 7

7. What is an attribute?
   (a) A description of a class
   (b) An internal property of a class
   (c) A data item held by a class
   (d) A parameter of a class

Answer 7

C

Question 8

8. What is information hiding in software
   design?
   (a) Hiding information so that it cannot be found
   (b) Hiding a design decision that is considered likely to change
   (c) Hiding information to make it
   secure
   (d) Encapsulating data in a class

Answer 8

B

Question 9

9. What is data abstraction?
   (a) Another name for information hiding
   (b) Encapsulating data so that its structure is hidden
   (c) Storing data in a database
   (d) Storing data in a data structure

Answer 9

B

Question 10

10. What is inheritance?
    (a) A mechanism for inheriting characteristics from a parent
    (b) A mechanism for sharing and reusing code between classes
    (c) A mechanism for sharing data between classes
    (d) A mechanism for hiding information between classes

Answer 10

B