Question 1 What does the pop back function do? O Removes the last entry in a vec

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Question 1 What does the pop back function do? O Removes the last entry in a vector without returning it Returns the last entry in a vector O Adds an entry to the back of a vector O Replaces the last entry of a vector with a new entry Question 2 Which of the following is NOT a reason to implement a vector rather than an array? Vectors provide size flexibility Vectors are more efficient O Vectors provide boundary protection None of the above Question 3 Which of the following is NOT a reason to implement a vector rather than an array? There is no difference in implementation. The difference lies only in performance. In the vector/list combo, there is never a need to store the default value explicitly. In the multidimensional array, there is never a need to store the default value explicitly. None of the above

Explanation / Answer

Question1: What does the pop_back function do?

Ans:Removes the last element in the vector without returning it

Question2:Which of the following is not a reason to implement vector rather than an array?

Ans:Vectors provide boundary protection

Question3:Which of the following is not a reason to implement vector rather than an array?

Ans:None of the above

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