PHP Interview Questions - 12 | Snaprecruit.com

PHP Interview Questions - 12 | Snaprecruit.com

PHP interview questions part 12

PHP interview questions part 12

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Total Questions: 20

1. __________are Data frames which contain lists of homogeneous data in a tabular format.

Correct Answer is : ArrayArrayArrayArrayArrayArray….infinitely

2. The four most frequently used types of data objects in R are vectors, matrices, data frames and ________

Correct Answer is : function fumctionName(parameters) { function body }

3. A __________ is a set of elements appearing in rows and columns where the elements are of the same mode whether they are logical, numeric (integer or double), complex or character.

Correct Answer is : PHP 5

4. What is the simplest way of creating the vector?

Correct Answer is : Call By Value

5. Which function replicates elements of vectors?

Correct Answer is : 42

6. The ________ function creates a regular sequence of values to form a vector.

Correct Answer is : Only ii)

7. Which function is used to enter in data at the terminal?

Correct Answer is : I am a Error

8. Computation with vectors is achieved using an element-by-element operation for avoiding _________

Correct Answer is : Error

9. To bind a row onto an already existing matrix, the ______ function can be used.

Correct Answer is : hello

10. Which of the following is a 3-dimensional dataset?

Correct Answer is : Magic Function

11. Which dimension corresponds to the explanatory variables collected for each species?

Correct Answer is : Will this work

12. Using the ________ vector, we create a species factor and bind it to the columns of iris.df.

Correct Answer is : 42

13. Accessing elements is achieved through a process called ________

Correct Answer is : I am a Error

14. Which are indexed by either row or column using a specific name or number?

Correct Answer is : Error

15. What should we use to access elements with a value greater than five?

Correct Answer is : hello

16. Lists can be created using the _______ function.

Correct Answer is : 4

17. First component of the list can be accessed by _____________

Correct Answer is : 104

18. How can we access the first component of the list?

Correct Answer is : 0.463647609

19. The first component can be accessed using __________ operator.

Correct Answer is : Hello you! How are you today?

20. To extract a sublist, we use _________ brackets.

Correct Answer is : 0

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