1. Which of the following VoIP devices is typical in an enterprise environment? A. Hybrid Private Branch Exchange (PBX) B. IP Private Branch Exchange (PBX) C. VoIP server D. All of the above 2. Which of the following is a fact about Pulse Code Modulation (PCM)? A. Its known as ITU G.711 codec B. It samples an analog voice waveform 8000 times per second C. It has two variations: PCM A-law and PCM Mu-law D. All of the above
1. Which of the following VoIP devices is typical in an enterprise environment? A. Hybrid Private Branch Exchange (PBX) B. IP Private Branch Exchange (PBX) C. VoIP server D. All of the above 2. Which of the following is a fact about Pulse Code Modulation (PCM)? A. Its known as ITU G.711 codec B. It samples an analog voice waveform 8000 times per second C. It has two variations: PCM A-law and PCM Mu-law D. All of the above
Chapter8: Data And Network Communication Technology
Section: Chapter Questions
Problem 15RQ
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Question
1. Which of the following VoIP devices is typical in an enterprise environment?
A. Hybrid Private Branch Exchange (PBX)
B. IP Private Branch Exchange (PBX)
C. VoIP server
D. All of the above
2. Which of the following is a fact about Pulse Code Modulation (PCM)?
A. Its known as ITU G.711 codec
B. It samples an analog voice waveform 8000 times per second
C. It has two variations: PCM A-law and PCM Mu-law
D. All of the above
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