Declaring a class with all the data and functions public violates which principle(s) of object-oriented programming?

Suppose that x is an int variable and y is a double variable. The input is: ? 10 20.7 ? Choose the values after the following statement executes: cin >> x >> y;.

A. x = 10, y = 20 B. x = 10, y = 20.0 C. x = 10, y = 20.7 D. x = 10, y = 21.0

Write an rsync command that copies the backmeup directory from your home directory on the local system to the /tmp directory on guava, preserv- ing file ownership, permissions, and modification times. Write a command that will copy the same directory to your home directory on guava. Do not assume the working directory on the local system is your home directory.

What will be an ideal response?