At least one method in an abstract class must be abstract.

a. True

b. False

True or False? Two processes are running the same program on a computer. The operating system can set up an access restriction on the control section to prevent one process from changing the control section while the other process is using it.

Which bitwise operation has the same effect as multiplying a by 16?

You have four 2.5ʺ hard drives on hand and need a replacement drive for a desktop system. The documentation for the motherboard installed in the system says the board has six SATA 3 Gb/s connectors and one IDE connector.

Write an if/else statement that compares the double variable pH with 7.0 and makes the following assignments to the int variables neutral, base, and acid: 0,0,1 if pH is less than 7 0,1,0 if pH is greater than 7 1,0,0 if pH is equal to 7 History:

An enterprise DBMS is automatically capable of serving as a mobile DBMS. There are no special issues raised by mobility. True False

Which data unit term and value are correctly matched? A bit = a one or a zero A bit = eight bytes A byte = a one or a zero A byte = eight bits A gigabyte = one billion bytes A gigabyte = one million bytes A megabyte = one million bytes

Computer input is the process of translating physical signals (light, sound, movement) into which of the following?

What is the run method in a Java program with Karel? A method that always makes Karel move in a square. The method that is called just before the program ends. The method that is called to start a Karel program.

Witch of these data charts has only one series of data Explain your answer. A. Line charts B. Bar graphs C. Pie charts D. Area charts

William's dad taught him how to write computer codes from a young age. Now, the high school senior wants to work as a programmer.