CCNT Broadband Technologies v6 0 Part 2 

...SDN) Primary
Rate Interface (
PRI).
Identify features of Broadband Integrated Services Digital Network (
B-ISDN).
Identify characteristics of virtual channels and paths.
Identify features of Broadband Integrated Services Digital Network (B-ISDN) service classes.
Unit 2: X.25 and
Frame Relay (2 - 3 hours)
Identify features of X.25.
Sequence the order of events that occur in X.25
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