ISDN uses _____ technology.
A). only digital
B). digital and analog
C). only analog
D). neither digital nor analog
E). mostly digital
1. Which of the following interrupts has least priority?
3. A COM port is a _____ port.
4. ISDN uses _____ technology.
5. What do you need to check serial and parallel port?
6. A laser printer generates a totally black page, what is the cause?
7. Missing slot covers on a computer can cause?
10. What is modified when changing the system start-up boot sequence?