ICND2 – OSPF Questions 4
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Question 1
[am4show have=’p2;’]Which configuration enables OSPF for network 192.168.1.0/24?
A. router ospf
router-id 192.168.1.0
B. router ospf 1
network 192.168.1.0 0.0.0.255 area 0
C. router ospf 1
neighbor 192.168.1.0
D. router ospf 1
area 0 virtual-link 192.168.1.0
Answer: B[/am4show]
Question 2
[am4show have=’p2;’]Which purpose of the network command in OSPF configuration mode is true?
A. It defines a wildcard mask to identify the size of the network.
B. It defines the area ID.
C. It defines the network by its classful entry.
D. It defines which networks are used for virtual links.
Answer: A[/am4show]
Comment to Question 2.
network command defines the interfaces on which OSPF runs and the area ID for those interfaces. B) could be better answer.
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_ospf/configuration/12-4t/iro-12-4t-book/iro-cfg.html#GUID-9270D0BB-AE66-4589-B5A8-23DB1224EFF0
@Bengt That question vs options’s answers is unbelievable confusing, After several days scratching my head I knew the reason the best choice answer is A is because Area ID tells where the interface belong, so it come second
Area is just an Area number, not Area ID. In OSPF, Area isn’t defined. Interfaces matching the wildcard mask are assigned to a specified Area. So answer “A” is correct.
@Alborotao according to me Bengt is right.
Answer A is wrong because the wildcard doesn’t define the area of the network in this command’s purpose, it identify on which interfaces OSPF will run
according to me, B is the right one
Q2. Area number not Area ID, so there is something wrong with B already.