Refer to the exhibit. Which configuration allows routers R14 and R86 to form an OSPFv2 adjacency while acting as a central point for exchanging OSPF information between routers?
Refer to the exhibit. Which configuration allows routers R14 and R86 to form an OSPFv2 adjacency while acting as a central point for exchanging OSPF information between routers?
To form an OSPFv2 adjacency between routers R14 and R86, the essential configurations must align, including the OSPF network type, MTU settings, and OSPF router-id settings. Option C is correct because it properly configures the OSPF network type to broadcast, sets matching MTU values of 1500 on both interfaces, and applies the router-id and network statements within the OSPF configuration. These settings ensure that both routers can form a stable OSPF adjacency and exchange routing information efficiently. Options A and D have mismatched MTU settings, which can prevent forming the OSPF adjacency, while option B contains incorrect syntax and lacks necessary OSPF network statements.
Anybody else just want to keep scrolling when you see answer choices like this?
Yea i do, but i also want to understand a bit of it when i start working
Its C. Answer is straight forward, 1st I noticed mtu are mismatched in A and D, so we will eliminate them, in option B, Network command is missing so, C os is more appropriate.
Holy hell, it's C but the amount of text makes me wanna bash my head into the keyboard.
i swear they could at least format this such that it's easier to read
My god what a bunch of text just to find the differences and make the elimination method.. A nightmare.
These sorts of questions hurt my brain. Try to break them down - I focused on MTU (the MTU must match) then on the area. The only option with matching details was C.
So many unnecessary things you don't have to even read to answer this question.... I sincerely hope questions like this are not on the official CCNA exam as it makes me wonder why we pay so much to cisco for crap like this
TL;DR—
B its wrong because: B. R14# interface Loopback0 ip ospf 10 area 0 interface FastEthernet0/0 ip address 10.73.65.65 255.255.255.252 ip ospf network broadcast ip ospf 10 area 0 ip mtu 1500 "router ospf 10 ip ospf priority 255" this line. the comand exit from interface configuration and enter in OSPF global configuration and priority comando must be aplicate in the INTERFACE configuration prompt
A. and D. are wrong because MTU of miss match B. is wrong because # ip ospf priority xx should be executed in interface mode
The question mentions exchange (exstart) so MTU values must match.
C is correct at first look at MTU, then Area, then priority. B is wrong because the command ip ospf priority should be done in interface configuration mode and not router configuration mode.
Only focus on the MTU, and the question answers itself.
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Quickest method is to see if the MTU match and the area, then i eliminate the wrong ones, Left with B & C, then check the syntax
How is B incorrect?
B. R14# interface Loopback0 * ip ospf 10 area 0 * interface FastEthernet0/0 * ip address 10.73.65.65 255.255.255.252 * ip ospf network broadcast * ip ospf 10 area 0 * ip mtu 1500 * router ospf 10 * ip ospf priority 255 (***WRONG***) * router-id 10.10.1 14 * R86# interface Loopback0 * ip ospf 10 area 0 * interface FastEthernet0/0 * ip address 10.73.65.66 255.255.255.252 * ip ospf network broadcast * ip ospf 10 area 0 * ip mtu 1500 * router ospf 10 * router-id 10.10.1.86
C. RESPOSTA CERTA) C. R14# interface FastEthernet0/0 * ip address 10.73.65.65 255.255.255.252 * ip ospf network broadcast * ip ospf priority 255 * ip mtu 1500 * router ospf 10 * router-id 10.10.1.14 * network 10.10.1.14 0.0.0.0 area0 * network 10.73.65.64 0.0.0.3 area0 * R86# interface FastEthernet0/0 * ip address 10.73.65.66 255.255.255.252 * ip ospf network broadcast * ip mtu 1500 * router ospf 10 * router-id 10.10.1.86 * network 10.10.1.86 0.0.0.0 area 0 * network 10.73.65.64 0.0.0.3 area 0