What is the difference between a context diagram and diagram 0? Which symbol is not used in a context diagram?
What will be an ideal response?
The context diagram contains only one process symbol, process 0, which represents the entire system. Diagram 0 is a more detailed (or exploded, partitioned, or decomposed) version of process 0 on the context diagram. The major processes, data flows, and data stores for the information system are shown on diagram 0.
The data store symbol is not used in a context diagram. Use a data store only when two or more processes use that data store. Otherwise, the data store is internal to a process and not visible from the outside. Because a context diagram involves only one process, all data stores are internal to that process and do not appear in the context diagram.
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The type of input that is provided by the user while a program is running is __________ input.
Fill in the blank(s) with correct word
What values will be in the boxes (these represent the computer’s memory) once the lines of code in have been performed? Be sure to show decimal points and full precision if the variable type is capable of holding that data!
``` int main() { int x = 7, y = 2, z = 45; double d1 = 7.0, d2 = 2.0; int n1, n2; double r, s,t; n1 = z/x; n2 = d1/d2; r = z/y; s = d1/d2 + x/y*z; t = d2/x + z/d1; ```
Which is not a factor to consider when choosing a CPU?
A) Clock speed B) Number of cores C) Amount of cache memory D) Whether it has a graphical processor (GPU) built in
All of the following tests of controls will provide evidence that adequate computer virus control techniques are in place and functioning except
A. verifying that only authorized software is used on company computers B. reviewing system maintenance records C. confirming that antivirus software is in use D. examining the password policy including a review of the authority table