Which of the following guards access points between intranets and the Internet and prevents traffic that is perceived dangerous to the network?

Public-key cryptography

Security tokens

Shared-key cryptography

Firewalls

In mmf2, what is the grid? a. a toolbar that lets you open libraries and use the objects in them in your games b. an object that creates the background or other scenery for a game c. a set of vertical and horizontal lines that are usually invisible in the play area d. a set of vertical and horizontal lines that are usually visible in the play area

What type of file does a cookie place on web site visitors' computers so that web site managers can customize their sites to their visitors' preferences?

Given int variables k and total that have already been declared, use a while loop to compute the sum of the squares of the first 50 counting numbers, and store this value in total. thus your code should put 11 + 22 + 33 + + 4949 + 50*50 into total. use no variables other than k and total.