An attribute in a relation of a database that serves as the primary key of another relation in the same database is called a

The GPS device in an automobile uses which communication channel?

What are the differences between packet and circuit switching? Which is more prevalent today?

Which statement is true regarding the Quick Access toolbar? O It can be located at the top left-hand corner of the screen or below the ribbon It can contain functions that are also in the ribbon.

Troubleshooting a printer that does not work includes a. connecting the printer to your computer b. checking to see if there is paper c. seeing if there is ink d. making sure it is on

Which of the following is not an internet browser? a. safari b. firefox c. opera d. thunderbird

The technology company DataGenetics suggests that 17.8% of all four-digit personal identification numbers, or PIN codes, have a repeating digits format such as 2525.

What is 'validation'?

Using the physical mail analogy, what part of an address on an envelope is most like the ip address?

Application programmers specialize in developing system software such as operating systems, device drivers, security modules, and communications software.? a. True b. False

Assume a program requires the execution of 50 x 106 (50e6) FP instructions, 110 x 106 (110e6) INT instructions, 80 x 106 (80e6) L/S instructions, and 16 x 106 (16e6) branch instructions.