What does the '<<' operator do when used with arrays in Ruby?
A. Adds an element to the beginning of the array
B. Adds an element to the end of the array
C. Removes the last element from the array
D. Concatenates two arrays
Answer: Option B
A. Adds an element to the beginning of the array
B. Adds an element to the end of the array
C. Removes the last element from the array
D. Concatenates two arrays
Answer: Option B
Which method in Ruby is used to add an element to the end of an array?
A. push
B. pop
C. append
D. insert
What will array.size return in Ruby, if array = [1, 2, 3, 4, 5]?
A. 5
B. 4
C. [1, 2, 3, 4, 5]
D. "array"
Which method is used to access the value associated with a specific key in a hash in Ruby?
A. access
B. get
C. fetch
D. value
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