In Non Return to Zero encoding schemes, the signal or voltage ...

[casperchen82]

In Non Return to Zero encoding schemes, the signal or voltage level does not
  return to 0v (zero volts); one of the problems with this type of encoding is that:
 
  A. it is sometimes difficult to synchronize the timing of the transmitter and
   the receiver
 
   B. it does not work well with serial communications
 
   C. the signal ground of the transmitter is often different from that of the
   receiver
 
   D. it works only for analog signals

Question 2

A major purpose of an organizational knowledge base is to support and allow
 
  A) knowledge sharing.
  B) e-learning.
  C) responsible blogging.
  D) organizational capital.

[bubulittle310@msn.cn]

Answer to Question 1

A

Answer to Question 2

A

[casperchen82]

Gracias!

[tranoy]

Excellent