What is the use of swap() function in array class?
A. Swaps two elements of an array given elements
B. Swaps two arrays
C. Swaps two elements given indices of elements
D. Swaps same elements of the array if required
Answer: Option B
A. Swaps two elements of an array given elements
B. Swaps two arrays
C. Swaps two elements given indices of elements
D. Swaps same elements of the array if required
Answer: Option B
What does the 'sizeof' operator return in C++?
A. Size of a data type in bits
B. Size of a data type in bytes
C. Size of a variable in bytes
D. Size of a variable in bits
What is the purpose of the 'static' keyword in C++?
A. To declare a variable with dynamic storage duration
B. To declare a constant
C. To declare a variable with external linkage
D. To declare a variable with static storage duration
What is the difference between '++i' and 'i++' in C++?
A. None of the above
B. They both have the same effect
C. '++i' increments the value of 'i' before returning it, while 'i++' increments the value of 'i' after returning it
D. '++i' increments the value of 'i' after returning it, while 'i++' increments the value of 'i' before returning it
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