INTRODUCTION TO COMPUTERS
COMPUTER NETWORKS AND THE INTERNET
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What are fractional T & E lines?
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Digital phone lines consisting of one or more individual T or E carrier channels, rather than the individual T or E carrier line
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Digital phone lines consisting of shorter lengths of T or E carrier line than the standard lengths available for purchase
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T or E carriers that support more bandwidth than standard T or E lines
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T or E carriers that are interchangeable anywhere in the world
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Explanation:
Detailed explanation-1: -T1 and T3 are two common types of digital transmission systems used in telecommunications. AT&T originally developed T1 lines in the 1960s to support telephone service. The service gradually evolved to support both voice and data. T3 lines (also known as DS3) are an enhanced version of T1 that gives better bandwidth.
Detailed explanation-2: -A T3 line comprises 28 T1 lines, each operating at total signaling rate of 1.544 Mbit/s.
There is 1 question to complete.