The technology developed by phone companies to offer basic high-speed data service over existing phone wires was _____.
A) DSL
B) SONET
C) T-1
D) T-3
Correct Answer:
Verified
Q11: As a result of frequency reuse,the cell
Q12: In the phone network,the interexchange carrier link
Q13: In the phone network,end users are connected
Q14: The seven local phone companies created as
Q15: In the phone network,interexchange carriers are _.
A)networks
Q17: All of the following are true of
Q18: In the phone network,the local loop is
Q19: Typically in DSL _.
A)downstream data rates are
Q20: In the phone network,the end office is
Q21: In the cell phone system,conversations are switched
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