The physical layer is responsible for
A) line coding
B) channel coding
C) modulation
D) all of the mentioned
Correct Answer:
Verified
Q10: Physical layer provides
A)mechanical specifications of electrical connectors
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
Q16: Attenuation means
A)loss of energy
B)change in form or
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
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