Which three statements about OSPF partial SPF are true？（）A、If it is triggered by Type 4， all Type 4 LSAs that announce a certain ASBR and all Type 5 and 7 LSAs are processedB、If it is triggered by Types 5 and 7， all Type 5 and 7 LSAs that contribute to a 

Routers R1, R2, R3, and R4 connect to the same 10.10.10.0/24 LAN- based subnet. OSPF is fully working in the subnet. Later, R5, whose OSPF priority is higher than the other four routers, joins the subnet.Which of the following are true about the OSPF database exchange process over this subnet at this point?（）

A. R5 will send its DD, LSR, and LSU packets to the 224.0.0.5 all - DR - routers multicast address.

B. R5 will send its DD, LSR, and LSU pack ets to the 224.0.0.6 all - DR - routers multicast address.

C. The DR will inform R5 about LSAs by sending its DD, LSR, and LSU packets to the 224.0.0.6 all- SPF - routers multicast address.

D. The DR will inform R5 about LSAs by sending its DD, LSR, and LSU pa ckets to the 224.0.0.5 all- SPF - routers multicast address.

A. RIP routes will be allowed in Area 1 only if they are first redistributed into EIGRP.

B. Because NSSA will discard type 7 LSAs, redistributed RIP routes will not be allowed in Area 1.

C. Redistrib uted RIP routes will be allowed in Area 1 because they will be changed into type 5 LSAs in Area 0 and passed on into Area 1.

D. Redistributed RIP routes will be allowed in Area 1 because they will be changed into type 7 LSAs in Area 0 and passed on into Area 1.

E. Because Area 1 is an NSSA, redistributed RIP routes will not be allowed.

A. Type 7 LSAs

B. Type 4 summary LSAs

C. Type 3 summary LSAs

D. Type 5 AS-external LSAs

A. Only redistributed RIP routes will appear in Area 1. They will be advertised via t ype 7 LSAs

B. No redistributed routes can appear in Area 1, only summary routes

C. Redistributed RIP and IGRP routes will appear in Area 1. They will be advertised via type 5 LSAs

D. Only redistributed IGRP routes will appear in Area 1. They will be advertised via type 7 LSAs

Refer to the exhibit. OSPF is configured on all routers in the network. Area 5 is configured as an NSSA areA. The RIPv2 routes are redistributed into the OSPF domain on router R5. What two types of LSAs will be originated by router R5?（）

A. type 1 Router LSA

B. type 2 Network LSA

C. type 3 Network Summary LSA

D. type 4 ASBR Summary LSA

E. type 5 AS External LSA

F. type 7 NSSA External LSA

A. All OSPF routers in stubby areas can have type 3 LSAs in their database.

B. All OSPF routers in stubby areas can have type 7 LSAs in their database.

C. All OSPF routers in totally stubby areas can have type 3 LSAs in their database.

D. All OSPF routers in totally stubby areas can have type 7 LSAs in their database.

E. All OSPF routers in NSSA areas can have type 3 LSAs in their database.

F. All OSPF routers in NSSA areas can have type 7 LSAs in their database.

A. Routers cannot redistribute external routes into the area.

B. Routers should have zero Type 3 LSAs in their LSDBs.

C. Routers should have zero Type 5 LSAs in their LSDBs.

D. Routers should learn default routes from the ABRs attached to the area.

A.OSPFexternalLSAsareautomaticallyfloodedintoallOSPFareas，unliketype7LSAs，whichrequirethatredistributionbeconfigured.

B.ExternalLSAs（type5）areautomaticallychangedtotype1LSAsatASBRs.

C.Type5LSAsareroutesummariesdescribingroutestonetworksoutsidetheOSPFAutonomousSystem.

D.ExternalnetworkLSAs（type5）redistributedfromotherroutingprotocolsintoOSPFarenotpermittedtofloodintoastubarea.