MCQOPTIONS
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MCQOPTIONS
This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Javascript knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
WHAT_IS_THE_OPPOSITE_APPROACH_TO_THE_LEXICAL_SCOPING??$ |
| A. | Literal scoping |
| B. | Static scoping |
| C. | Dynamic scoping |
| D. | Generic scoping |
| Answer» B. Static scoping | |
| 2. |
What is the purpose of the dynamic scoping?$ |
| A. | Variables can be declared outside the scope |
| B. | Variables must be declared outside the scope |
| C. | Variables cannot be declared outside the scope |
| D. | Variable cannot be declared within the function |
| Answer» E. | |
| 3. |
What is the fundamental rule of lexical scoping? |
| A. | Functions are declared in the scope |
| B. | Functions are executed using scope chain |
| C. | Functions are declared outside the scope |
| D. | Variable are declared within the function |
| Answer» D. Variable are declared within the function | |
| 4. |
Which of the following are examples of closures? |
| A. | Objects |
| B. | Variables |
| C. | Functions |
| D. | All of the mentioned |
| Answer» E. | |
| 5. |
What is a closure? |
| A. | Function objects |
| B. | Scope where function’s variables are resolved |
| C. | Both Function objects and Scope where function’s variables are resolved |
| D. | Function return value |
| Answer» D. Function return value | |
| 6. |
What must be done in order to implement Lexical Scoping? |
| A. | Get the object |
| B. | Dereference the current scope chain |
| C. | Reference the current scope chain |
| D. | Return the value |
| Answer» D. Return the value | |
| 7. |
What kind of scoping does JavaScript use? |
| A. | Literal |
| B. | Lexical |
| C. | Segmental |
| D. | Sequential |
| Answer» C. Segmental | |