Router R1, an internal router in OSPFv2 area 51, has an LSDB that includes some Type 1, some Type 2, and some Type 3 LSAs. Which of these types of LSAs could R1 not possibly have created inside area 51?
Type 1
Type 2
Type 3
R1 would be allowed to create all three types.
A company has a network with 15 routers and 40 subnets and uses OSPFv2. Which of the following is considered an advantage of using a single-area design as opposed to a multi-area design?
Reduces the processing overhead on most routers.
Status changes to one link may not require SPF to run on all other routers.
Simpler planning and operations.
Allows for route summarization, reducing the size of IP routing tables.
Which of the following OSPF neighbor states is expected when the exchange of topology information is complete between two OSPF neighbors?
2-way
Full
Up/up
Final
Routers R1, R2, and R3 are internal routers in areas 1, 2, and 3, respectively. Router R4 is an ABR connected to the backbone area (0) and to areas 1, 2, and 3. Which of the following answers describes the configuration on router R4, which is different from the other three routers, that makes it an ABR?
The abr enable router subcommand
The network router subcommands refer to a single nonbackbone area.
The network router subcommands refer to multiple areas, including the backbone
The router has an interface in area 0, whereas an OSPF neighbor’s interface sits in a different area.
Which of the following configuration settings on a router does not influence which IPv4 route a router chooses to add to its IPv4 routing table when using OSPFv2?
auto-cost reference-bandwidth
delay
bandwidth
ip ospf cost
An engineer connects to router R1 and issues a show ip ospf neighbor command. The status of neighbor 2.2.2.2 lists Full/BDR. What does the BDR mean?
R1 is an Area Border Router.
R1 is a backup designated router.
Router 2.2.2.2 is an Area Border Router.
Router 2.2.2.2 is a backup designated router
