Which difference must an engineer consider when choosing whether to implement OSPF or IS-IS as the routing protocol on the network?
The OSPF DR election process is deterministic, and the IS-IS DS election process is not deterministic.
To support fast convergence. OSPF uses the LSA arrival timer and IS-IS uses the PRC-interval timer.
IS-IS supports ordinary, stub, totally-stub. and NSSA areas, but OSPF supports only stub areas.
IS-IS links are associated with either a Level 1 area or a Level 2 area at one time, but OSPF links are associated with multiple areas at one time.
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