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TIA CCNT Exam
TIA Convergent Network Technologies (Page 34 )

Updated On: 1-Feb-2026
Page 34 of 213
PDF with 1057 Questions

The structure of an STS-N frame is:

  1. 90 columns X 9 bytes, or 810 bytes.
  2. 87 columns X 3 bytes, or 261 bytes.
  3. 9 columns X 18 bytes, or 162 bytes.
  4. 27 columns X 9 bytes, or 243 bytes.
  5. Answer pending.

Answer(s): E



In an STS-1 frame, the first 3 columns are used for:

  1. 270 bytes of user information.
  2. 9 bytes of line overhead.
  3. 27 bytes of transport overhead.
  4. 3 bytes of parity checking.
  5. Answer pending.

Answer(s): E



Which of the following is true about broadband?

  1. An access device for digital TV will also work for DSL.
  2. Access equipment is expensive and inaccessible to the average user.
  3. As ISDN became common, modems replaced terminal adaptors.
  4. E-mailing of large files is a major factor in the increasing demand for broadband.

Answer(s): B



The STS-1 SONET frame has 86 columns of payload capacity, for a total of:

  1. 258 bytes.
  2. 774 bytes.
  3. 6,192 bytes.
  4. 8,600 bytes.

Answer(s): B



Which of the following is true about broadband?

  1. An access device for digital TV will also work for DSL.
  2. Access equipment is inexpensive and accessible to the average user.
  3. As ISDN became common, modems replaced terminal adaptors.
  4. Internet access is a major factor in the increasing demand for broadband.

Answer(s): B



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