Solution to Question 2-1
Apache, PHP, and MySQL.
Solution to Question 2-2
Mac OS X, and many Linux distributions.
Solution to Question 2-3
The desktop.
Solution to Question 2-4
It indicates lines that are commented out.
Solution to Question 2-5
By not working on your local drive and transferring your files to a server.
Solution to Question 2-6
You can use an FTP program.
Solution to Question 2-7
Through a web server.