PHP interview questions part 12
PHP interview questions part 12
Take as many assements as you can to improve your validate your skill rating
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
