The purpose of the screentip function is to a. alert you that a change has been made to your document b. merge several documents for ease of reading c. provide details on the function of an icon or button d. view submenus that ared available

It is vital to research each of the services you plan to disable before implementing any change, especially on critical machines such as the: a. servers in the test environment. b. domain controller and other infrastructure servers. c. desktops that have previously been attacked. d. desktops used by upper-level management.

What is one reason why indoor air pollution has become an increasing problem.

Write a program that asks the user to enter the name of an input file. if the file does not exist, the program should prompt the user to enter the file name again. if the user types quit in any uppercase/lowercase combinations, then the program should exit without any further output.