• 1. 
    Both OSPFv2 and OSPFv3 can run on the same router. True or false?

  • True
  • False
  • 2. 
    When determining the OSPF router ID, Cisco IOS selects the lowest IP address of the configured Loopback interfaces. True or false?

  • True
  • False
  • 3. 
    OSPF is a hierarchical routing protocol that logically divides the network into subdomains referred to as _____

  • Broadcast Domain
  • VLAN
  • Areas
  • Loopbacks
  • 4. 
    OSPFv2 and OSPFv3 use different LSA flooding and aging mechanisms. True or false?

  • True
  • False
  • 5. 
    _______ can be described as interfaces over which no routing updates are sent.

  • active
  • priority 0
  • split horizon
  • passive
  • 6. 
    OSPF utilises IP Multicast when sending and receiving updates on Multi-Access networks, such as Ethernet. True or false?

  • True
  • False
  • 7. 
    What are reasons for creating OSPF in a hierarchical design?To decrease routing overhead To speed up convergence To confine network instability to single areas of the network To make configuring OSPF easier

  • 1, 2 and 3
  • 3 only
  • 3 and 4
  • 2, 3 and 4
  • 8. 
    Which is the equivalent of 224.0.0.5 in the IPv6 world?

  • FF02::5
  • FF00::5
  • FF::5
  • FFFF::05
  • 9. 
    Which of the following are true regarding OSPF areas?You must have separate loopback interfaces configured in each area. 2. The numbers you can assign an area go up to 65,535. The backbone area is also called area 0. If your design is hierarchical, then you don't need multiple areas. All areas must connect to area 0.

  • 1 only
  • 1 and 2 only
  • 3 and 4 only
  • 3, 4 and 5
  • 10. 
    How does OSPF determine whether other Link State routers are operating on the interfaces as well?

  • By sending Hello packets.
  • By sending DBD packets
  • By receiving LSDB
  • By sending LSAs
  • 11. 
    Which of the following network types have a designated router and a backup designated router assigned? Broadcast Point-to-pointNBMANBMA point-to-point

  • 1, 2 and 3
  • 1 and 3
  • 3 and 4
  • All of the above
  • 12. 
    What command can you use to assign an interface to OSPF Area 2 (interface level command)?

  • ip area 2 ospf
  • ip ospf area 2
  • area 2
  • network area 2
  • 13. 
    Which command would you use to enable the OSPFv3 routing protocol?

  • ipv6 router ospf
  • router ospf v3
  • router ospf ipv6
  • ospf v3 enable
  • 14. 
    A significant difference between OSPFv2 and OSPFv3 is that the OSPFv3 Hello packet now contains no address information at all but includes an interface ID, which the originating router has assigned to uniquely identify its interface to the link. True or false?

  • True
  • False
  • 15. 
    What protocol does OSPF use?

  • TCP number 89
  • UDP number 88
  • UDP number 89
  • IP number 89
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