What protocol requires all routers in the same domain to maintain a map of the network?

The correct answer is D. OSPF. OSPF is a link-state routing protocol that requires all routers in the same domain to maintain a map of the network. This map is called the link-state database (LSDB) and it contains information about the topology and the state of each link. Each router independently calculates…

Submitted by anna_se· Apr 18, 2026Cybersecurity Foundations

Question

Options

AEIGRP
BStatic
CRIP
DOSPF

How the community answered

(43 responses)

A
2% (1)
B
2% (1)
C
5% (2)
D
91% (39)

Explanation

OSPF is a link-state routing protocol that requires all routers in the same domain to maintain a map of the network. This map is called the link-state database (LSDB) and it contains information about the topology and the state of each link. Each router independently calculates the shortest path to every destination in the network using the Dijkstra algorithm. OSPF routers exchange routing information by flooding link-state advertisements (LSAs) to their neighbors. LSAs are acknowledged by the receivers to ensure reliable delivery.

Topics

#Routing Protocols#OSPF#Link-State Routing#Network Topology

Community Discussion

No community discussion yet for this question.

Full PCCET Practice