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TIA CCNT Exam
TIA Convergent Network Technologies (Page 23 )

Updated On: 1-Feb-2026
Page 23 of 213
PDF with 1057 Questions

All of the following are steps in the SIP transport process except:

  1. Encapsulate the SMDS data unit with header and trailer information.
  2. Create an SMDS data unit.
  3. Construct L2PDUs into L3PDUs and send them to the router.
  4. Construct the L3PDU into L4PDUs and place on the access circuit.
  5. Answer pending.

Answer(s): E



What is true about L3PDUs?

  1. The information field in an L3PDU is large enough to hold any existing LAN frame.
  2. An L3PDU is the data portion of an SMDS data unit.
  3. A special router is required to create L3PDUs.
  4. L3PDUs are L2PDUs that have been divided into cells.
  5. Answer pending.

Answer(s): E



An L3PDU is:

  1. The data portion of an SMDS data unit.
  2. An SMDS data unit with header and trailer information.
  3. An L2PDU that has been divided into smaller cells.
  4. The header information in an SMDS data unit.
  5. Answer pending.

Answer(s): E



What is NOT true about L3PDUs?

  1. The information field in an L3PDU is large enough to hold any existing LAN frame.
  2. An L3PDU is an SMDS data unit with header and trailer information.
  3. A special router is required to create L3PDUs.
  4. L3PDUs are handed off to the CSU/DSU that terminates the SMDS access circuit.

Answer(s): C



L2PDUs:

  1. Do not carry their own address information.
  2. Are several L3PDUs multiplexed together.
  3. Are created by a router.
  4. L2PDUs are placed on the access circuit and sent into the network.
  5. Answer pending.

Answer(s): E



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