MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Technical MCQs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Constants are declared by using _____ keyword and variables by _______ keyword. |
| A. | var, let |
| B. | let, let |
| C. | var, var |
| D. | let, var |
| E. | |
| Answer» E. | |
| 2. |
Enum is also known as Swift Enumeration. |
| A. | Yes |
| B. | No |
| C. | Can be yes or no |
| D. | Can not say |
| Answer» B. No | |
| 3. |
________________ is a hierarchy of objects that obtain the opportunity to respond to the events. |
| A. | Regular Expression |
| B. | Dictionary |
| C. | Responder Chain |
| D. | None of the above |
| Answer» D. None of the above | |
| 4. |
A function inside a function is called a nested function in swift? |
| A. | TRUE |
| B. | FALSE |
| C. | Can be true or false |
| D. | Can not say |
| Answer» B. FALSE | |
| 5. |
In Swift4, functions can be categorized in __________ types. |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 6. |
Which operator specifies a range between two values a and b (a |
| A. | full open range |
| B. | half close range |
| C. | full close range |
| D. | half open range |
| Answer» E. | |
| 7. |
How can you make a property optional in Swift? |
| A. | You have to declare a question mark & in the code to make a property optional |
| B. | You have to declare a question mark ? in the code to make a property optional |
| C. | You have to declare a question mark ?? in the code to make a property optional |
| D. | None of the above |
| Answer» D. None of the above | |
| 8. |
What is the meaning of question mark "?" in Swift? |
| A. | used in function declaration |
| B. | used in property declaration |
| C. | used in loop declaration |
| D. | used in parameter declaration |
| Answer» C. used in loop declaration | |
| 9. |
Swift is an open-source programming language developed by? |
| A. | |
| B. | |
| C. | Apple |
| D. | IBM |
| Answer» D. IBM | |
| 10. |
Which of the following is true about Swift? |
| A. | Swift is an open-source programming language |
| B. | Swift is used in iOS development |
| C. | Swift can be compiled as a dynamic framework |
| D. | All of the above |
| Answer» E. | |