Nokia 4A0-100 Question Answer
Which of the following types of information is used to calculate the Shortest Path Tree (SPT)?
Copies of the neighbors' routing tables
Hop count to each potential destination
Network topology
IP reachability
TheShortest Path Tree (SPT)is calculated byLink-State routing protocolslikeOSPFandIS-ISusing:
Acomplete map of the network topology.
Each router uses algorithms likeDijkstra’sto compute the shortest paths to all destinations.
Option C is correct– fullnetwork topologyis used.
Option Arefers to Distance Vector methods.
Option BandDare results of topology analysis but not the input used.
TESTED 18 Dec 2025
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