Which of the following is an example of physical security?
A) Access barriers
B) Preventing unauthorized computer access
C) Having communication safeguards
D) Monitoring computer access and usage
Answer: A
Explanation: A) Correct. Access barriers, monitoring devices, and security patrols are examples of physical security.
B) Incorrect. Preventing unauthorized computer access is an example of cybersecurity.
C) Incorrect. Having communication safeguards is an example of cybersecurity.
D) Incorrect. Monitoring computer access and usage is an example of cybersecurity.
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A) Potentiometer; ground B) Potentiometer; motor C) Motor; potentiometer D) Motor; linear divider
Where are pictorial drawings frequently used?
What will be an ideal response?
(a) Calculate the phase shift of the circuit in Fig. 9.82.
(b) State whether the phase shift is leading or lagging (output with respect to input).
(c) Determine the magnitude of the output when the input is 120 V.
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Clearly defining limitations accurately describes, and effectively solves, problems.
Answer the following statement true (T) or false (F)