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PHP interview questions part 21
PHP interview questions part 21
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Total Questions: 20
1. What will be the output of runif()?
A. Functions
B. Methods
C. Attributes
D. Constraints
Show Correct Answer
Correct Answer is :
Attributes
2. ________ function generates “n” normal random numbers based on the mean and standard deviation arguments passed to the function.
A. Composition
B. Abstraction
C. Aggregation
D. Inheritance
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Correct Answer is :
Composition
3. Write a function to extract the first name in the string “Mrs. Jake Luther”?
A. Strong Aggregation
B. Composition
C. Abstraction
D. Inheritance
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Correct Answer is :
Abstraction
4. _________ package provides basic functionalities in R environment like arithmetic calculations, input/output.
A. A sequence diagram is class based
B. A sequence diagram presents the participants of a system from right to left
C. The vertical broken lines represent the lifetime of the class in the system
D. A sequence diagram is object based
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Correct Answer is :
A sequence diagram presents the participants of a system from right to left
5. Which function basically finds the intersection between two different sets of data?
A. double-headed arrow
B. visibility symbols
C. single-headed arrow
D. double diamond
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Correct Answer is :
double diamond
6. Which function calculates the count of each category of a categorical variable?
A. Private
B. Friendly
C. Protected
D. Static
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Correct Answer is :
Private
7. The cumulative frequency distribution of a categorical variable can be checked using the ________ function in R language.
A. Operations
B. Inheritance
C. Abstraction
D. Coupling
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Correct Answer is :
Abstraction
8. A programmer builds a _________ to avoid repeating the same task or reduce complexity.
A. ShopProduct
B. Shopproduct
C. Shopproduct1
D. 1shopproduct
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Correct Answer is :
1shopproduct
9. _______ grammar makes a clear distinction between your data and what gets displayed on the screen or page.
A. type
B. prototype
C. instance
D. object
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Correct Answer is :
instance
10. Which of the following cuts numeric vector into intervals of equal length ?
A. $product1 and $product2 are same objects of the same type generated from a single class.
B. $product1 and $product2 are different objects of the same type generated from a single class.
C. $product1 and $product2 are same objects of the different type generated from a single class.
D. $product1 and $product2 are different objects of the different type generated from a single class.
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Correct Answer is :
$product1 and $product2 are different objects of the same type generated from a single class.
11. Which of the following is a plot to investigate the order in which observations were recorded ?
A. PHP 4
B. PHP 5
C. PHP 5.1
D. PHP 5.3
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Correct Answer is :
PHP 5
12. __________ modifies geom/stat aesthetic defaults for future plots
A. client code
B. user code
C. object code
D. class code
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Correct Answer is :
client code
13. Which of the following is discrete state calculator ?
A. method
B. function
C. public
D. protected
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Correct Answer is :
function
14. Which of the following creates fluctuation plot ?
A. public
B. private
C. protected
D. friendly
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Correct Answer is :
public
15. ________ is used to create a plot to illustrate patterns of missing values.
A. boolean()
B. is_boolean()
C. bool()
D. is_bool()
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Correct Answer is :
is_bool()
16. _________ generate aesthetic mappings that describe how variables in the data.
A. Error
B. Cather: Willa My Antonia (5.99)
C. Willa: Cather My Antonia (5.99)
D. My Antonia: Willa Cather (5.99)
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Correct Answer is :
My Antonia: Willa Cather (5.99)
17. ______ generate aesthetic mappings from a string
A. PHP 4
B. PHP 4.3
C. PHP 5
D. PHP 5.3
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Correct Answer is :
PHP 5
18. Which of the following is a differentiation related aesthetic ?
A. base
B. abstract
C.
D. predefined
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Correct Answer is :
base
19. ________ modify a ggplot or theme object by adding on new components.
A. bool(true)
B. bool(false)
C. bool(true)
D. bool(false)
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Correct Answer is :
bool(true)
20. __________ create a complete ggplot appropriate to a particular data type
A. bool(false)
B. bool(true)
C. bool(false)
D. bool(true)
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Correct Answer is :
bool(true)
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