Arrays_ Hashes And Strings In Ruby — Part 1 MCQs with Explanations

push is the correct answer to “Which method in Ruby is used to add an element to the end of an array”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

5 is the correct answer to “What will array.size return in Ruby, if array = [1, 2, 3, 4, 5]”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

fetch is the correct answer to “Which method is used to access the value associated with a specific key in a hash in Ruby”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

"olleh" is the correct answer to “What is the output of "hello".reverse in Ruby”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

chars is the correct answer to “In Ruby, how do you convert a string to an array of characters”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

merge is the correct answer to “Which of the following methods is used to merge two hashes together in Ruby”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

Appends a character to the end is the correct answer to “What does the << operator do when used with a string in Ruby”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

has_key? is the correct answer to “How do you check if a key exists in a hash in Ruby”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

pop is the correct answer to “Which method in Ruby is used to remove and return the last element of an array”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

Joins all elements into a single string is the correct answer to “What does the join method do when used with an array in Ruby”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

Array of all keys is the correct answer to “What does the keys method return when called on a hash in Ruby”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

5 is the correct answer to “What is the output of "hello".length in Ruby”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

include? is the correct answer to “Which method is used to check if an array includes a specific element in Ruby”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

"apple, banana, cherry" is the correct answer to “What is the output of ["apple", "banana", "cherry"].join(", ") in Ruby”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

pop is the correct answer to “In Ruby, which method is used to remove the last element from an array and return it”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

Adds an element to the end of the array is the correct answer to “What does the '<<' operator do when used with arrays in Ruby”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

has_key? is the correct answer to “Which method in Ruby is used to check if a key exists in a hash”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

store is the correct answer to “In Ruby, which method is used to add a key-value pair to a hash”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

Error is the correct answer to “What is the result of the expression `"hello".split` in Ruby”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

Checks if the string includes another string is the correct answer to “What does the `include?` method do when used with strings in Ruby”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

Converts the first character to uppercase is the correct answer to “In Ruby, what does the `capitalize` method do when used with strings”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

+ is the correct answer to “In Ruby, which method is used to concatenate two strings”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

5 is the correct answer to “What is the result of the expression `"hello".length` in Ruby”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

Removes newline characters from the end is the correct answer to “What does the `chomp` method do when used with strings in Ruby”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

Removes the last element of the array is the correct answer to “What does the pop method do when called on an array in Ruby”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

: is the correct answer to “In Ruby, which symbol is used to access the value associated with a key in a hash”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

join(separator) is the correct answer to “What method in Ruby is used to join the elements of an array into a single string”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

delete(key) is the correct answer to “Which of the following methods is used to remove a key-value pair from a hash in Ruby”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

Splits the string into substrings based on a delimiter is the correct answer to “What does the `split` method do when called on a string in Ruby”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

Simply assigning a value to a new key is the correct answer to “In Ruby, how can you add a key-value pair to an existing hash”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

Iterates over each key in the hash is the correct answer to “What does the `each_key` method do when called on a hash in Ruby”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

has_key?(key) is the correct answer to “Which of the following methods is used to check if a key exists in a hash in Ruby”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

upcase is the correct answer to “In Ruby, which method is used to convert a string to uppercase”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

Reverses the order of characters in the string is the correct answer to “What does the `reverse` method do when called on a string in Ruby”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

True is the correct answer to “Arrays can be used to store multiple values in one single variable.”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

o FALSE is the correct answer to “What is the output of the given code? string_array = ["a","e","i","o","u"] boolean_array = ["True","False"] puts string_array[3] puts boolean_array[1]”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

Error is the correct answer to “What will be the output of the following? array1 = [1,2,3] array2 = [0,0,0] if array1 >= array2 print "Greater or equal" else print "Not equal" end”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

o is the correct answer to “What is the output of the given code? string_array = ["a","e","i","o","u"] print string_array[3]”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

Equal is the correct answer to “What is the output of the given code? a=["hey", "ruby", "language"] b=["hey", "ruby", "language"] if a==b print "Equal" else print "Not equal" end”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.

[["a", "b"], ["e", "a"]]. is the correct answer to “What is the output of the given code? a=[["a","b"]] b=[["e","a"]] print a + b”. This question is standard in competitive examination syllabi for Arrays_ Hashes And Strings In Ruby.