What is the technique used by a router that can
automatically initiate and close a circuit-switched session?
A. PLP
B. LAPP
C. ASN.1
D. DDR
Answer / guest
Answer: D
DDR (Dial-on-demand routing) is the technique used by a
router that can automatically initiate and close a
circuit-switched session. PLP (packet-layer protocol) is the
network layer protocol in the X.25 stack. LAPP doesn?t
exist. ASN.1 (Abstract Syntax Notation One) is an OSI
language for describing data types independent of particular
computer structures and representation techniques.
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