Interview question based on skill :
Take as many assements as you can to improve your validate your skill rating
Total Questions: 20
1. _________ initiates an infinite loop right from the start.
Correct Answer is : LOG_CONS
2. Which of the following code snippet stops loop after 20 iterations ?
Correct Answer is : syslog()
3. _______ is used to skip an iteration of a loop.
Correct Answer is : syslog()
4. Which of the following code can be used to avoid numeric problems such as taking the logarithm of a negative number ?
Correct Answer is : PHP 5
5. R has ________ statements that provide explicit looping.
Correct Answer is : 7
6. The syntax of the repeat loop is :
Correct Answer is : PHP 5.3
7. Which will be the output of following code ? > x <- 3 > switch(x, 2+2, mean(1:10), rnorm(5))
Correct Answer is : throw new Exception();
8. What will be the output of the following code ? > x <- 3 > switch(2, 2+2, mean(1:10), rnorm(5))
Correct Answer is : Returns the message if it is passed to the constructor
9. Which will be the output of following code ? > x <- 3 > switch(6, 2+2, mean(1:10), rnorm(5))
Correct Answer is : final
10. What will be the output of the following code ? > y <- "fruit" > switch(y, fruit = "banana", vegetable = "broccoli", "Neither")
Correct Answer is : Standard PHP Library
11. What will be the output of the following code? > centre <- function(x, type) { + switch(type, + mean = mean(x), + median = median(x), + trimmed = mean(x, trim = .1)) + } > x <- rcauchy(10) > centre(x, "mean")
Correct Answer is : 13
12. Which of the following code will print “Neither” ?
Correct Answer is : None of the mentioned
13. R has ________ basic indexing operators.
Correct Answer is : All of the mentioned
14. The syntax of the for loop is :
Correct Answer is : bytes
15. Which of the following code syntax is syntactically valid ?
Correct Answer is : fileatime()
16. R has how many atomic classes of objects ?
Correct Answer is : file()
17. Numbers in R are generally treated as _______ precision real numbers.
Correct Answer is : file_get_contents()
18. If you explicitly want an integer, you need to specify the _____ suffix.
Correct Answer is : fgets()
19. Attributes of an object (if any) can be accessed using the ______ function.
Correct Answer is : fgetss()
20. R objects can have attributes, which are like ________ for the object.
Correct Answer is : fwrite()
