Q: 10
Similar to the OSPF DR, the IS-IS DIS needs to be elected on a broadcast network. However, the OSPF DR is preemptive by default, whereas the IS-IS DIS is not preemptive by default.
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Guessing False since OSPF DR elections are actually non-preemptive, while IS-IS DIS is preemptive if a higher priority router shows up. Saw similar detail in some practice sets. Good clear statement here.
Had something like this in a mock, and chose False.
False tbh
Nah, not A. The statement gets it backwards since OSPF DR is actually non-preemptive, and IS-IS DIS is preemptive by default. Pretty sure it's False here, classic trap with protocol election logic.
Nah, statement has the protocols flipped. OSPF DR isn’t preemptive, but IS-IS DIS is. False here, easy trap if you mix up those details. Correct me if I’m missing something.
False
False. Had something like this in a mock exam-OSPF DR is non-preemptive, so even if a higher-priority router shows up, the DR doesn't change until the old one goes down. IS-IS DIS can actually preempt if a new router with a better priority comes online. Pretty sure that's what they're testing here. Agree?
False , saw a similar question on a practice exam and the statement mixes up protocol behaviors.
Yeah this one's False. OSPF DR isn't preemptive, even if a higher priority router pops up later, it won't take over as DR. IS-IS DIS is preemptive by default. Easy to mix up since the terms sound similar, but that's the standard behavior. If anyone's got docs that disagree let me know.
Anyone double-checked the default preemptive behavior in the official guide or with hands-on labs? Practice exams seem to flip this sometimes.
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