Describe at length what a multiplexor is.
What will be an ideal response?
A multiplexor is a circuit that has 2Ninput linesand 1 output line. Its function is to select exactly one of its 2Ninput lines and copy the binary value on that input line onto its single output line. A multiplexor chooses one specific input by using an additional set of N lines called selector lines. (Thus the total number of inputs to the multiplexor circuit is 2N+ N.) The 2Ninput lines of a multiplexor are numbered 0, 1, 2, 3, … , 2N- 1. Each of the N selector lines can be set to either a 0 or a 1, so we can use the N selector lines to represent all binary values from 000 ... 0 (N zeros) to 111 ... 1 (N ones), which represent all integer values from 0 to 2N- 1. These numbers correspond exactly to the numbers of the input lines. Thus the binary number that appears on the selector lines can be interpreted as the identification number of the input line that is to be selected.
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In a CD-R, the R stands for ____ technology.
A. readable B. rewritable C. recordable D. reversible
Charts can be added to forms or queries. _________________________
Answer the following statement true (T) or false (F)
Colin is reviewing a system that has been assigned the EAL7 evaluation assurance level under the Common Criteria. What is the highest level of assurance that he may have about the system?
A. It has been functionally tested. B. It has been methodically tested and checked. C. It has been methodically designed, tested, and reviewed. D. It has been formally verified, designed, and tested.
When a user types something into a Text Box control, the input is stored in the control’s ____________ property.
a. Text b. Input c. String d. Value