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200-301 · Question #848

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

The correct answer is A. provides common view of entire topology D. utilizes event-triggered updates. Link-state routing protocols provide every router with a comprehensive view of the entire network topology and distribute updates only when network changes occur.

Submitted by saadiq_pk· Mar 5, 2026

Question

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

Options

  • Aprovides common view of entire topology
  • Bexchanges routing tables for its own routes with neighbor
  • Ccalculates feasible path
  • Dutilizes event-triggered updates
  • Eutilizes frequent periodic updates

How the community answered

(23 responses)
  • A
    87% (20)
  • B
    9% (2)
  • E
    4% (1)

Why each option

Link-state routing protocols provide every router with a comprehensive view of the entire network topology and distribute updates only when network changes occur.

Aprovides common view of entire topologyCorrect

Link-state protocols build a complete topological map of the network within each router's link-state database, giving all routers a common, detailed view of the entire network.

Bexchanges routing tables for its own routes with neighbor

Exchanging routing tables for its own routes with a neighbor is a characteristic of distance-vector routing protocols, not link-state.

Ccalculates feasible path

Calculating a feasible path is a specific feature of Cisco's Enhanced Interior Gateway Routing Protocol (EIGRP) through its Diffusing Update Algorithm (DUAL), which is a hybrid protocol, not a general characteristic for all link-state protocols.

Dutilizes event-triggered updatesCorrect

Link-state protocols utilize event-triggered updates, meaning they only send routing information when there is a change in the network topology, leading to more efficient use of bandwidth compared to periodic updates.

Eutilizes frequent periodic updates

Frequent periodic updates are a characteristic of distance-vector routing protocols, which regularly send their entire routing tables.

Concept tested: Link-state routing protocol characteristics

Source: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_ospf/configuration/15-mt/iro-ospf-15-mt-book/iro-ospf-overview.html

Topics

#Link-state routing#Routing protocol characteristics

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