Cisco 100-105 Exam

Which characteristics are representative of a link-state routing protocol? (Choose three.)

  • A. provides common view of entire topology
  • B. exchanges routing tables with neighbors
  • C. calculates shortest path
  • D. utilizes event-triggered updates
  • E. utilizes frequent periodic updates
Answer: Option A. C. D.

Each of routers running link-state routing protocol learns paths to all the destinations in its “area” so we can say although it is a bit unclear.
Link-state routing protocols generate routing updates only (not the whole routing table) when a change occurs in the network topology so
Link-state routing protocol like OSPF uses Dijkstra algorithm to calculate the shortest path -> . Unlike Distance vector routing protocol (which utilizes frequent periodic updates), link-state routing protocol utilizes event-triggered updates (only sends update when a change occurs) ->

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