Holding CTRL and HOME in order to move the cursor to the top of the document is an example of a ________

A packet-____________________ firewall installed on a TCP/IP-based network typically functions at the IP level and determines whether to drop a packet (deny) or forward it to the next network connection (allow) based on the rules programmed into the firewall.

Fill in the blank(s) with the appropriate word(s).

Answer the following statements true (T) or false (F)

1. Value checks are usually performed for any data. 2. A value check is used when one element has a relationship with another one. 3. A mathematical process of assuring data accuracy involves multiplying each of the digits in the original code by some predetermined weights, summing these results, and then dividing this sum by a modulus number. 4. Use the stored data system to prevent the mistake that the intended number 53411 is typed in as number 54311 instead. 5. A method for validating credit cards uses a check digit formula called the Kendall formula.