What would you change to optimize spanning tree in a L2 environment? (priorities for root) Where would you configure spanning-tree root guard? (uplinks) What two additional features can be used for spanning tree optimization? (bpduguard, bpdufilter, port-fast, etc) What features could you implement for fiber problems resulting in a unidirectional link? (UDLD & spanning tree loop guard) Name the OSPF LSA types and describe each. (google) Why would the type 4 ASBR summary be used? (E1 routes with multiple points of redistribution to area 0 for competing routes to the same external route) What is BGP's loop prevention mechanism? (AS_PATH attribute) Why did you implement OSPF and not EIGRP in your network?
