R1 is internal to area 1, and R2 is internal to area 2. Subnet 10.1.1.0/24 exists in area 2 as
a connected subnet off R2. ABR ABR1 connects area 1 to backbone area 0, and ABR2
connects area 0 to area 2. Which of the following LSAs must R1 use when calculating R1’s
best route for 10.1.1.0/24?

Which of the following LSA types describes topology information that, when changed,
requires a router in the same area to perform an SPF calculation? (Choose two.)

The following output was taken from Router R3. A scan of R3’s configuration shows that no
bandwidth commands have been configured in this router. Which of the following answers
lists configuration settings could be a part of a configuration that results in the following
output? (Choose two.)
R3#show ip ospf interface brief
Interface PID Area IP Address/Mask Cost State Nbrs F/C
Se0/0/0.2 3 34 10.10.23.3/29 647 P2P 1/1
Se0/0/0.1 3 34 10.10.13.3/29 1000 P2P 1/1
Fa0/0 3 34 10.10.34.3/24 20 BDR 1/1

Which of the following LSA types describe information related to topology or subnets useful
for calculating routes for subnets inside the OSPF domain? (Choose threE.)

Router B1, an internal router in area 1, displays the following output. The only two
ABRs connected to area 1 are performing Type 3 LSA filterinG. Which of the following
answers is true based on the information in the output from B1?
R1# show ip route 10.1.0.0 255.255.0.0 longer-prefixes
! Legend lines omitted for brevity
10.0.0.0/8 is variably subnetted, 17 subnets, 3 masks
O 10.1.2.0/24 [110/658] via 10.10.13.1, 00:00:32, Serial0/0/0.1
O IA 10.1.1.0/24 [110/658] via 10.10.23.2, 00:41:39, Serial0/0/0.2
O IA 10.1.3.0/24 [110/658] via 10.10.23.2, 00:41:39, Serial0/0/0.2

seq 5 deny 10.1.2.0/24 ge 25 le 27
seq 15 deny 10.2.0.0/16 ge 30 le 30
seq 20 permit 0.0.0.0/0 le 32

R1, an ABR between backbone area 0 and area 1, has intra-area routes in area 0 for
10.1.1.0/24, 10.1.2.0/24, and 10.1.3.0/24. These routes have metrics of 21, 22, and 23,
respectively. An engineer then adds the area 0 range 10.1.0.0 255.255.0.0 command under
the OSPF process of R1. Which of the following is true? (Choose two.)

The following output exists on Router R1, a router internal to area 1. What can you
determine as true from the output of the show ip ospf database summary command?
Routing Bit Set on this LSA
LS age: 124
Options: (No TOS-capability, DC, Upward)
LS Type: Summary Links (Network)
Link State ID: 10.1.0.0 (summary Network Number)
Advertising Router: 1.1.1.1
LS Seq Number: 80000001
Checksum: 0x878F
Length: 28
Network Mask: /22
TOS: 0 Metric: 11

Router R1, an ASBR connected to the Internet and to backbone area 0, has been configured
with a default-information originate command. Which of the following is true about the effects
of this configuration command?

Which of the following is true about routers internal to a totally NSSA area?
(Choose two.)