An engineer configured routing between multiple OSPF domains and introduced a routing loop that caused...

Set a tag using the redistribute command toward a domain and deny inbound m the other domain by a matching tag

Set a tag using the redistribute command toward a different domain and deny the matching tag when exiting from that domain

Set a tag using the network command in a domain and use the route-map command to deny the matching lag when exiting toward a different domain

Set a tag using the network command in a domain and use the route-map command to deny the matching tag when entering into a different domain