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.
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)- A87% (20)
- B9% (2)
- E4% (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.
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.
Exchanging routing tables for its own routes with a neighbor is a characteristic of distance-vector routing protocols, not link-state.
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.
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.
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
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