MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your R Programming knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The _________ function is a kind of “constructor function” that can be used to construct other functions. |
| A. | make.pow() |
| B. | make.power() |
| C. | keep.power() |
| D. | keep.pow() |
| Answer» C. keep.power() | |
| 2. |
The ________ for R are the main feature that make it different from the original S language. |
| A. | scoping rules |
| B. | closure rules |
| C. | environment rules |
| D. | closure & environment rules |
| Answer» B. closure rules | |
| 3. |
The only environment without a parent is the ________ environment. |
| A. | full |
| B. | half |
| C. | null |
| D. | empty |
| Answer» E. | |
| 4. |
R uses _________ scoping6 0 or static scoping. |
| A. | reflective |
| B. | transitive |
| C. | lexical |
| D. | closure |
| Answer» D. closure | |
| 5. |
Which of the variable in the following R code is variable? |
| A. | x |
| B. | y |
| C. | z |
| D. | yyView Answer |
| Answer» D. yyView Answer | |
| 6. |
What will be the output of the following R code snippet? |
| A. | function(x) { x * x } |
| B. | func(x) { x * x } |
| C. | function(x) { x / x } |
| D. | function { x $ x }View Answer |
| Answer» B. func(x) { x * x } | |
| 7. |
THE_ONLY_ENVIRONMENT_WITHOUT_A_PARENT_IS_THE__________ENVIRONMENT.?$ |
| A. | full |
| B. | half |
| C. | null |
| D. | empty |
| Answer» C. null | |
| 8. |
The__________for_R_are_the_main_feature_that_make_it_different_from_the_original_S_language$ |
| A. | scoping rules |
| B. | closure rules |
| C. | environment rules |
| D. | all of the mentioned |
| Answer» E. | |
| 9. |
R uses _________ scoping⁶⁰ or static scoping?# |
| A. | reflective |
| B. | transitive |
| C. | lexical |
| D. | all of the mentioned |
| Answer» B. transitive | |
| 10. |
A function, together with an environment, makes up what is called a ______ closure. |
| A. | formal |
| B. | function |
| C. | reflective |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 11. |
function(x) { x * x } |
| A. | func(x) { x * x } |
| B. | function(x) { x / x } |
| C. | none of the mentioned |
| Answer» C. none of the mentioned | |