____________________ is an applied science devoted to incorporating comfort, efficiency, and safety into the design of items in the workplace.

Spoofing and spamming are two of the vulnerabilities associated with which of the following protocols?

a. HTTP b. FTP c. SMTP d. TFTP

[This question is for UNIX/Linux users.] Create an output filter that performs word wrap- ping. If a line is longer than a certain number of characters, split the line over multiple lines. The num- ber of characters per line should be indicated in the command line. The program should read in keyboard input from the user, and format that input as specified, placing the result in file.txt.

Implement this using pipes and fork functions (child gets input from user, parent performs the fil- tering). What will be an ideal response?