View all questions & answers for the 300-510 exam
ION NO: 91
What are two major differences between OSPF and IS-IS routing protocols? (Choose two.)
OSPF uses IP protocol 89 foe encapsulation and IS-IS uses an IEEE 802 3 standard-based protocol foe encapsulation
The OSPF default administrative distance is 115 and the default administrative distance for IS-IS is 110
The OSPF DR role can be pre-empted only when the active DR goes down, but the IS-IS DR role can be taken by a router with higher priority at any time
OSPF partially refreshes the LSA database every 30 minutes, and IS-IS refreshes the complete database table every 60 minutes
An OSPF-enabled router is part of only one area but an IS-IS-enabled router is part of multiple areas
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