Question

This clears (writes a 0 to) a bit of a numeric variable.

A.bitClear
B.sizeof()
C.pinMode
D.#include

Answer 1

The correct answer is A. bitClear, which is used in programming to clear a specific bit of a numeric variable by writing a 0 to it.

Step-by-step explanation:

The question is asking for a command used in programming that writes a 0 to a particular bit of a numeric variable. The correct answer is A. bitClear. This function is often used in low-level programming, such as working with microcontrollers or when manipulating data at the bit level.

The bitClear function takes two arguments: the first is the numeric variable to be modified, and the second is the position of the bit that will be cleared (set to 0).

The correct answer to the question is A. bitClear. The bitClear function in C/C++ is used to clear (write a 0 to) a specific bit of a numeric variable. It takes two arguments - the variable name and the position of the bit to be cleared.

For example, if we have a variable named num and we want to clear the 3rd bit, we can use the bitClear function as follows:

bitClear(num, 3);

This will set the 3rd bit of num to 0.