How do firewalls work?
What will be an ideal response?
Firewalls work by closing down all external communications port addresses (the electronic connections that allow a computer to communicate with other computers) to unauthorized computers and programs. While business firewalls are set up by the network administrator and those settings typically cannot be changed by end users, individuals may choose to change the settings for their personal firewall. For example, the user can choose to be notified when any application program on the computer is trying to access the Internet, to specify the programs that are allowed to access the Internet, or to block all incoming connections temporarily. In addition to protecting your computer from outside access, firewall programs also protect against any spyware, computer viruses, or other malicious programs located on your computer that are designed to send data from your computer (such as credit card numbers, Web site passwords, and other sensitive data stored on your hard drive) to a hacker at the hacker’s request.
You might also like to view...
Which of the following cannot be used to concatenate strings?
a. + b. += c. append d. assign
The most widely used operating systems on larger servers is one of the many versions of ____.?
A. ?UNIX B. ?Windows XP C. ?MAC OS D. ?Windows NT
When the DNS information is wrong or when it cannot be reached there is no way to obtain the IP address of the destination, which will result in no connectivity to the intended destination. The term for this is which of the following?
What will be an ideal response?
The ________ number formatting displays commas and decimal points but not currency symbols
Fill in the blank(s) with the appropriate word(s).