packetization
quantization
decoding
sampling
第1题：
A. Framing
B. De-encapsulation
C. Encapsulation
D. De-framing
E. None of the above
第2题：
A. A CSU/DSU converts analog signals from a router to a leased line; a modem converts analog signals from a router to a leased line.
B. A CSU/DSU converts analog signals from a router to a phone line; a modem converts digital signals from a router to a leased line.
C. A CSU/DSU converts digital signals from a router to a phone line; a modem converts analog signals from a router to a phone line.
D. A CSU/DSU converts digital signals from a router to a leased line; a modem converts digital signals from a router to a phone line.
第3题：
A.digital-to-analogconversion
B.digital-to-digitalconversion
C.analog-to-digitalconversion
D.analog-to-analogconversion
第4题：
What is the term that is used to describe the process of converting a signal from digital to analog？（）
第5题：
Which two statements are true about analog to digital conversion of voice signals for use in digital telephony networks？（）
第6题：
A.packetization
B.quantization
C.decoding
D.sampling
第7题：
What frame type is used to signal TSPEC reservation from a client?（）
第8题：
the term“parliament”was first officially used in 1 066 to describe the gathering of feudal barons and representatives from counties and towns. ()
第9题：
What term is used to describe the process where one frame is placed into a different type of frame?（）
第10题：
When a router converts analog signals to digital signals， what three steps are always included in the process？（）