OSI model defines an open system as
A) a set of protocols that allows any two different systems to communicate
B) a set of rules for open access
C) a standard
D) None of the above
Correct Answer:
Verified
Q15: The physical layer is responsible for
A)line coding
B)channel
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
Q21: QAM combines
A)ASK and FSK
B)FSK and PSK
C)ASK and
Q22: Differential Manchester and multi line transmission (MLT-3)
Q24: 1 TeraHertz =
A)1000000 Hz
B)1000000000 Hz
C)1000000000000 Hz
D)None of
Q25: Shannon capacity formula for noisy channel is
A)C
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