H12-821_V1.0 · Question #821
In OSPF broadcast or NBMA network types, devices with high DR Priority may not necessarily become DR.
The correct answer is A. TRUE. A is correct because OSPF DR/BDR elections are non-preemptive. Once a DR is elected on a broadcast or NBMA segment, it retains that role even if a router with a higher priority later joins the network. The high-priority newcomer must wait until the current DR fails or OSPF is…
Question
Options
- ATRUE
- BFALSE
How the community answered
(33 responses)- A76% (25)
- B24% (8)
Explanation
A is correct because OSPF DR/BDR elections are non-preemptive. Once a DR is elected on a broadcast or NBMA segment, it retains that role even if a router with a higher priority later joins the network. The high-priority newcomer must wait until the current DR fails or OSPF is restarted before it can win an election.
B is wrong because it assumes priority alone guarantees DR status, ignoring the non-preemptive election rule - a router that arrives late to an already-established segment loses out regardless of its priority value.
Memory tip: Think of OSPF DR election like a parking spot - whoever gets there first keeps it. A fancier car (higher priority) arriving later still can't take the spot; it has to wait until the occupant leaves.
Topics
Community Discussion
No community discussion yet for this question.