1. ADPCM provides better performance when the analog signal being sampled varies
ID: 1540210 • Letter: 1
Question
1. ADPCM provides better performance when the analog signal being sampled varies dramatically in amplitude from one sample to the next
a. True
b. False
2.Which line coding method codes logical "1s" and "0s" as +v and -v, voltages.
a. NRZ
b. Manchester
c. Bipolar AMI
d. B8ZS
3.CRC is an error detection method using a shared polynomial operation between transmitter and receiver. This operation creates a frame check sequence which is used by the receiver to determine if bit errors have occurred.
a. True
b. False
Explanation / Answer
ADPCM provid better performance when the signal varies with voltage
so the answer is
b)false
++++++++++++++++++++++++++++++++++++++++++++++++++++
2) NRZ method coding varies between +v and -v with 1s and 0s
so the answer is
a) NRZ
++++++++++++++++++++++++++++++++++++++++++++++++++++++
3)
the answer is
a) true
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