200-301 · Question #119
200-301 Question #119: Real Exam Question with Answer & Explanation
The correct answer is C: The default Hello and Dead timers are in use. From the output we can see there are Designated Router & Backup Designated Router for this OSPF domain so this is a broadcast network (point-to-point and point-to-multipoint networks do not elect DR & BDR) -> Answer B is not correct. By default, the timers on a broadcast network
Question
Refer to the exhibit. The show ip ospf interface command has been executed on R1 How is OSPF configured?
Options
- AThe interface is not participating in OSPF
- BA point-to-point network type is configured
- CThe default Hello and Dead timers are in use
- DThere are six OSPF neighbors on this interface
Explanation
From the output we can see there are Designated Router & Backup Designated Router for this OSPF domain so this is a broadcast network (point-to-point and point-to-multipoint networks do not elect DR & BDR) -> Answer B is not correct. By default, the timers on a broadcast network (Ethernet, point-to-point and point-to-multipoint) are 10 seconds hello and 40 seconds dead (therefore answer C is correct). The timers on a non- broadcast network are 30 seconds hello 120 seconds dead. From the line "Neighbor Count is 3", we learn there are four OSPF routers in this OSPF domain -> Answer D is not correct.
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