A.normal B.select C.random D.discard E.full
A.IP Precedence 2 B.IP Precedence 3 C.IP Precedence 4 D.IP Precedence 5 E.IP Precedence 6 F.IP Precedence 7
A.Level-1(L1) routers use default routes announced by Level-2(L2) routers in Level-1(L1) domain B.Level-1 routers use default routes installed based on ATT bit (Attach Bit) in announcements from Level-1-2(L1/L2) router C.Level-1 routers use specific routes, for other Level-1 domain, announced by Level-1-2(L1/L2) by route-leaking feature of Cisco IOS D.Level-1 routers use specific routes, for other Level-1 domain, announced by Level-2(L2) by route-leaking feature of Cisco IOS