A router has been configured with the commands router ospf 9, network 172.16.1.0
0.0.0.255 area 8, and network 172.16.0.0 0.0.255.255 area 9, in that order. No other OSPFrelated commands have been configured. The answers list the IP addresses that could be
assigned to this router’s Fa0/0 interface. Which answers list an IP address/prefix length that
would cause the router to put Fa0/0 into area 9? (Choose two.)

Which of the following is true about an OSPF area border router (ABR)?

Which of the following can either directly or indirectly identify all the interfaces for which both
1) OSPF has been enabled and 2) OSPF is not passive? (Choose two.)

Router R1 directly connects to subnet 10.1.1.0/24 with its Fa0/0 interface. R1 can ping four
other working OSPF routers in that subnet. R1 is neither the designated router (DR) nor
backup DR (BDR). OSPF is working correctly on all five routers. Which of the following is
true on R1? (Choose two.)

Routers R1 and R2 are OSPF neighbors using their Fa0/0 interfaces, respectively, using
default settings for all timers. An engineer adds the ip ospf hello-interval 6 command to R1’s
Fa0/0 configuration. Which of the following is true regarding the results from this change?
(Choose 2)

Routers R1 and R2, OSPF neighbors in area 0 over their Fa0/0 interfaces (respectively),
currently both successfully use OSPF MD5 authentication. The OSPF configuration includes
the area 0 authentication command under the router ospf 1 command. Which of the following
commands must have been configured on R1’s Fa0/0 interface? (Choose two.)

Which of the following settings do not prevent two potential OSPF neighbors from becoming
neighbors?

A company has a Frame Relay WAN with one central-site router and 100 branch office
routers. A partial mesh of PVCs exists: one PVC between the central site and each of the
100 branch routers. All routers use point-to-point subinterfaces and one subnet per PVC.
Which of the following is true about OSPF in this design?

A network design shows area 1 with three internal routers, area 0 with four internal routers,
and area 2 with five internal routers. Additionally, one ABR (ABR1) connects areas 0 and 1,
plus a different ABR (ABR2) connects areas 0 and 2. How many Type 1 LSAs would be
listed in ABR2’s LSDB?

A network planning diagram shows a large internetwork with many routers. The
configurations show that OSPF has been enabled on all interfaces, IP addresses correctly
configured, and OSPF workinG. For which of the following cases would you expect a router
to create and flood a Type 2 LSA?