A. Which preprocessor directive prevents a file from being included multiple tim

Question

A. Which preprocessor directive prevents a file from being included multiple times? Select one: a#ifndef b#include c#define d. #guard B. Which of the following choices appropriately fills in the blank? A read from cin will read characters from Select one a. a buffer b. the system's keyboard directly c. the system's input devices directly d. the hard disk C. If a program does not have "using namespace std;" but does have .#include ciostream>", then which of the following is the beginning of a valid cout statement? Select one: a. cout b. std->cout c. std::cout d. namespace::cout D. Which of the following choices appropriately fills in the blank? Characters written to cout are placed into a(n) Select one: a. file b. directory c. buffer d. hard disk

Explanation / Answer

Ans(A): option C

Ans(B): option B

Ans(C): option C

Ans(D): option C

Ans(E): option A

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