Block 2 Concepts Flashcards
(21 cards)
What is the term for only allowing access to authorized individuals?
Confidentiality
Information and data are two words for the same thing.
False
The ability to cause physical damage is a difference between cyber warfare and traditional warfare.
False
What kind of value does an input transducer output?
Electrical
What kind of value does an output transducer output?
Physical
What device exemplifies an output transducer?
Speaker
Does digital-to-analog conversion always lose data?
Yes
What sampling rate is needed to avoid aliasing in ADCs?
At least twice the signal’s highest frequency
Does smaller resolution increase quantization error?
No
What happens when input exceeds ADC’s Vmax or Vmin?
Clipping
How many bytes in one megabyte (MB)?
2²⁰
How many bits in one megabit (Mb)?
10⁶
What two components are used before an ADC for signal conditioning?
Transducer interface, LPF
What is the first level of a SCADA system?
Supervisory
What is the second level of a SCADA system?
Control
What is the third level of a SCADA system?
Data Acquisition
What is the fourth level of a SCADA system?
Controlled Process
What is the first step in Analog to Digital Conversion?
Sampling
What is the second step in Analog to Digital Conversion?
Quantizing
What is the third step in Analog to Digital Conversion?
Encoding
Why use a low pass filter before an ADC?
To prevent aliasing
