<u>Answer:</u>
The concept of data encapsulation within object-oriented programming involves the restriction of the manipulation of an object’s state by external users.
<u>Explanation:</u>
- In the discipline of object-oriented programming, objects are nothing else but repositories of data existing in the form of fields.
- Through data encapsulation, the vulnerable data is literally capsulated so that the object’s state cannot be manipulated by any agent working externally.
- Hence, data encapsulation can be referred to as a secure procedure of safeguarding the objects (data repositories).
Answer:
mail questionnaires
Explanation:
Mail questionnaire: In research, the term mail questionnaire is defined as a form or type of questionnaire that is being mailed by the researcher to the targeted persons or group, that possesses a specific collection of questions on a few specific topic being asked to them and determined as a part of the survey or interview which is used for researching on that particular topic.
Advantage: Anonymity and confidentiality.
In the question above, Kathy's purpose is being best served by a mail questionnaire.
1.F
2.T
3.F
4.T
These are the answers hope it helps
