Explain what a TDR is, and describe how it is used.?
What will be an ideal response?
A TDR issues a signal on a cable and then measures the way the signal bounces back (or reflects) to the TDR. Bad connectors, crimps, bends, short circuits, cable mismatches, bad wiring, or other defects modify the signal's amplitude before it returns to the TDR, thus changing the way it reflects. The TDR then accepts and analyzes the return signal, and based on its condition and the amount of time the signal took to return, determines cable imperfections. In the case of a coaxial cable network, a TDR can indicate whether terminators are properly installed and functional. A TDR can also indicate the distance between nodes and segments.
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In a secret key system
a. some keys are secret and some keys are public b. keys must originally be sent over a secure channel c. keys may never be changed d. keys are chosen by an administrator
You can add a graphical image to a worksheet by using ________
Fill in the blank(s) with correct word
________ allows a user to change a PivotChart type to a pie chart
A) Power View B) PowerPivot C) Chart view D) Format view