Which two events cause a router to advertise a connected network to OSPF neighbors? (Choose two.)
Which two events cause a router to advertise a connected network to OSPF neighbors? (Choose two.)
A router advertises a connected network to OSPF neighbors when an OSPF adjacency is established. Additionally, enabling the OSPF passive option on an interface causes the router to advertise the routes of directly connected networks without sending OSPF hello packets. This means the network is included in OSPF updates, even though OSPF does not actively operate on that interface. Configuring static routes to multicast addresses like 224.0.0.5 and 224.0.0.6 is not a standard practice for advertising networks in OSPF.
A passive interface is one for which the address information is advertised as an internal route in OSPF, but on which the protocol does not run. Never heard of adding static routes to distribute networks in OSPF.
B not correct. When an interface has the OSPF passive option enabled: Enabling the OSPF passive option on an interface does not directly cause the router to advertise its connected networks. The OSPF passive interface option is used to suppress OSPF hello packets on an interface, which means the router will not form OSPF adjacencies on that particular interface. This option is not typically used for actively advertising connected networks.
Correcting my self. AB is correct. passive—Advertises the direct interface addresses on an interface without actually running OSPF on that interface https://www.juniper.net/documentation/en_US/junos/topics/topic-map/ospf-passive-traffic-engineering.html
AB is correct
A,B are correct