Inteview CCNA Question OSPF

111- What is name of OSPF Algo?

Dijecstra or SPF (shortest part first)

112 – What is default size of Hello packets in OSPF?

50 bytes

113- What is default time of hello packets in OSPF?

10 sec

114- How many tables are in OSPF protocol?

Three

1- Neighbor

2- Topology

3- Routing

115- When OSPF protocol advertise its routing table?

When it discover neighbor with the help of hello packets

116- Which table find best path?

Routing table

117- Which updates called incremental updates?

Change based

118- What are partial updates?

Any change in network

119 – After how long OSPF exchange its topology table?

After 30 min

120 – What is refresher?

Every 30 min of topology table exchange time called refresher OR

Exchange time of topology table in OSPF protocol called refresher

122- What s the formula for metric of OSPF?

10^8

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