____ is an audio communications technique that is used over the Internet for audio communications.
A) PCM
B) ADPCM
C) SB-ADPCM
D) VoFR
Correct Answer:
Verified
Q19: When you use a modem to access
Q20: SONET travels in a(n)bus topology.
Q21: Which is not true about X.25?
A)It is
Q22: A _ identifies an individual virtual connection
Q23: _ is not an example of packet
Q25: There is/are _ demand channel(s)in BRI ISDN.
A)4
B)3
C)2
D)1
Q26: Which is not a method of connecting
Q27: The _ protocol, also called the gateway
Q28: Which is not true about both X.25
Q29: The X.25 Packet Protocol layer is like
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