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Exam Nokia 4A0-100 All Questions

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Exam Nokia 4A0-100 topic 1 question 3 discussion

Actual exam question from Nokia's Nokia 4A0-100
Question #: 3
Topic #: 1
[All Nokia 4A0-100 Questions]

How do protocols such as ATM and Frame-Relay support differentiating multiple customers or traffic types on the same physical wire?

  • A. ATM and Frame-Relay are circuit switched protocols and use Virtual Circuits to create logical separation of traffic.
  • B. ATM and Frame-Relay are point-to-point protocols and do not support different customers or traffic type on the same physical wire.
  • C. ATM and Frame-Relay are circuit switched protocols and use VLAN's to create logical separation of traffic.
  • D. ATM and Frame-Relay are circuit switched protocols and use IP Header information to create logical separation of traffic.
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Suggested Answer: A 🗳️
by Lungful at Nov. 15, 2023, 1:05 a.m.

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Lungful
1 year, 4 months ago
Selected Answer: A
A is correct. They use virtual circuits. (in regards to frame relay) "DLCI-Data Link Connection Identifier Bits. The DLCI serves to identify the virtual connection so that the receiving end knows which information connection a frame belongs to. Note that this DLCI has only local significance. A single physical channel can multiplex several different virtual connections." https://en.wikipedia.org/wiki/Frame_Relay
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