CIS 247 DeVry Week 4 Quiz Latest

CIS 247 DeVry Week 4 Quiz Latest
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CIS 247 DeVry Week 4 Quiz Latest
CIS247
CIS 247 DeVry Week 4 Quiz Latest
1. Question : (TCO 3) Which statement is true regarding the principles of an object-oriented language?
o
o
o
o
Persistence is not an optional object-oriented language requirement.
All methods should be public when declare inside a class.
Encapsulation means hiding data in a class from other classes.
Class attributes should be global so all elements of the program can see them.
Question 2. Question : (TCO 3) When would a programmer write more than one constructor?
o
o
o
o
You never have more than one constructor
The constructor cannot be overloaded
So objects can be treated the same way as variables of built in data types
None of the above
Question 3. Question : (TCO 3) Which of the following might be potential class(es) in an application?
o
o
o
o
o
Checking Account
Customer
Deposit
A and B
None of the above
Question 4. Question : (TCO 3) Why do classes need to collaborate with each other?
o
o
o
o
Most classes do not exist in isolation.
Classes need to interact with other classes to exchange data.
None of the above
Both A and B
Question 5. Question : (TCO 3) Assume you have an Employee class with a non-static attribute named salary.
If you create ten objects of this class, how many copies of the salary variable will you have?
o 2
o 10
o An unlimited number
o None of the above

Question 6. Question : (TCO 3) What does SOW stands for in the object-oriented design process?
o
o
o
o
Sequence of work
Structure of work
Statement of work
None of the above
Question 7. Question : (TCO 3) In the object-oriented design process, which of the following is true?
o The cost of a design change in the implementation phase is very low.
o The cost of a requirement/design change in the design phase is very high.
o The cost of a design change after the deployment phase is astronomical .
o All of the above
o None of the above
Question 8. Question : (TCO 3) To _____ an object is to create it.
o
o
o
o
instantiate
encapsulate
abstract
overload
Question 9. Question : (TCO 3) Every object of the same class _____.
o
o
o
o
gets a copy of every instance variable only
gets a copy of every instance variable and method
gets a copy of every method only
None of the above
Question 10. Question : (TCO 3) Classes do not have the ability to _____.
o
o
o
o
encapsulate data.
enforce information hiding
contain both data and functions
know how other classes are implemented