PHP Interview Questions - 29 | Snaprecruit.com

PHP Interview Questions - 29 | Snaprecruit.com

PHP interview questions part 29

PHP interview questions part 29

Take as many assements as you can to improve your validate your skill rating

Total Questions: 20

1. Which of the following operator is used to create integer sequences?

Correct Answer is : strtoupper()

2. What will be the output of the following R program? y<-0:5 vector(y) y[3]

Correct Answer is : o’malley wins the heavyweight championship!

3. In R language, a vector is defined that it can only contain objects of the ________

Correct Answer is : Salad is good

4. A list is represented as a vector but can contain objects of ___________

Correct Answer is : implode()

5. How can we define ‘undefined value’ in R language?

Correct Answer is : strrpos()

6. What is NaN called?

Correct Answer is : Contact the author of this article at [email protected]@[email protected]

7. How can we define ‘infinity’ in R language?

Correct Answer is : example.com

8. What is the output of the following code? y <- c(TRUE, 2)

Correct Answer is : hihellohi1

9. What is the class defined by the following code? y<-c(2,”t”)

Correct Answer is : hello

10. What is the class defined in the following code? y<-c(FALSE,2)

Correct Answer is : no output

11. Which one of the following is not a basic datatype?

Correct Answer is : hi

12. How do you create an integer suppose 5 in R?

Correct Answer is : hello

13. What is the output of the following code? x<- c (“a”,” b”) as.numeric(x)

Correct Answer is : hihellohi1

14. The dimension attribute is itself an integer vector of length _______

Correct Answer is : error

15. How could be the matrix constructed by using the following code? m <- matrix(1:6, nrow = 2, ncol = 3)

Correct Answer is : 1hi

16. Matrices can be created by row-binding with the help of the following function.

Correct Answer is : no output

17. What is the function used to test objects (returns a logical operator) if they are NA?

Correct Answer is : no output

18. What is the function used to test objects (returns a logical operator) if they are NaN?

Correct Answer is : Nothing

19. What is the function to set column names for a matrix?

Correct Answer is : Error

20. Which of the following is similar to Moment.js ?

Correct Answer is : Syntax Error

Similar Interview Questions

    Search for latest jobs

    Icon
    Icon