Which expression(s) clear(s) bit 5 (where bit 0 is LSB) of variable x?  (select only one)

union U { 

    short s; 

    char c[2]; 

} u = {0xA1B2}; 

On a little-endian system, what is the value of u.c[0] in hexadecimal?

You want to check if bit 4 (where bit 0 is LSB) is set in a variable systemFlags. Complete the single C++ expression that evaluates to true if bit 4 is set: 

Describe one practical use case for a union in games or robot programming: 

True or False: After writing to one member of a union, you can safely read from any other member without issues.

To set bit 3 of a variable (where bit 0 is the least significant bit), which mask would you use with the OR ( | ) operator?

What is the value of x after:    x = 12 << 2;

union Data { 

    int i; 

    float f; 

    double d; 

}; 

If sizeof(double) == 8, what is sizeof(Data)?

Write the result of:  (prefer hexadecimal)

0xF0 & 0x0F

If a little-endian system stores the 32-bit integer 0xA1B2C3D4 in memory, what byte appears at the lowest memory address?