Which of the following wireless standards uses frequency-hopping spread spectrum (FHSS) by default? A. Bluetooth B....
Which of the following wireless standards uses frequency-hopping spread spectrum (FHSS) by default?
A. Bluetooth
B. 802.11a
C. 802.11b
D. 802.11g
Homework Answers
A. Bluetooth uses frequency-hopping spread spectrum (FHSS). FHSS functions by modulating the data with a narrowband carrier signal that hops in a random but predictable sequence from frequency to frequency. Bluetooth can be susceptible to blue jacking and other forms of attack. Answer B is incorrect because 802.11a uses orthogonal frequency-division multiplexing. Answer C is incorrect because 802.11b uses direct sequence spread spectrum (DSSS) technology. Answer D is incorrect because 802.11g also uses orthogonal frequency-division multiplexing.
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Which of the following wireless standards uses frequency-hopping
spread spectrum (FHSS) by default?
A. Bluetooth
B....
Which of the following wireless standards uses direct sequence spread spectrum (DSSS) by default? A. Bluetooth...
Which of the following wireless standards uses direct sequence spread spectrum (DSSS) by default? A. Bluetooth B. 802.11a C. 802.11b D. 802.11ac
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Which one of the following belongs to the spread spectrum techniques?
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Chapter 18: wireless networks TRUE OR FALSE
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can someone help me do this and maybe also the picture of the scope explain how you get it. thankyou! Frequency-sh...
can someone help me do this and maybe also the picture of the
scope explain how you get it. thankyou!
Frequency-shift keying (FSK) and Phase-shift keying (PSK) Two other modulation schemes are the phase-shift keying (PSK) and the frequency-shift keying (FSK). These are illustrated in Figure 8 b and c respectively. In phase-shift keying the carrier signal changes phase by a radians when the digital signal changes values. In frequency-shift keying a 0 is transmitted at a different carrier frequency...
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Which of the following is NOT a way to measure default risk? A. Credit ratings B....
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can someone help me do this and maybe also the picture of the
scope explain how you get it. thankyou!
Frequency-shift keying (FSK) and Phase-shift keying (PSK) Two other modulation schemes are the phase-shift keying (PSK) and the frequency-shift keying (FSK). These are illustrated in Figure 8 b and c respectively. In phase-shift keying the carrier signal changes phase by a radians when the digital signal changes values. In frequency-shift keying a 0 is transmitted at a different carrier frequency...
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