Attenuation means
A) loss of energy
B) change in form or shape of a signal
C) crosstalk
D) difference in frequency
Correct Answer:
Verified
Q11: The physical layer translates logical communication requests
Q12: A single channel is shared by multiple
Q13: Wireless transmission can be done via
A)radio waves
B)microwaves
C)infrared
D)all
Q14: In asynchronous serial communication the physical layer
Q15: The physical layer is responsible for
A)line coding
B)channel
Q17: If r is the number of data
Q18: NRZ L and NRZ I differ in
A)synchronization
B)transition
C)Both
Q19: Analog to digital conversion can be done
Q20: The frequency of the modulated signal is
Q21: QAM combines
A)ASK and FSK
B)FSK and PSK
C)ASK and
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