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⟩ IT Help Desk interview questions part 10

► What is OSPF?

► A user is complaining of delays when using the network. What would you do?

► What is the difference between layer 2 and layer 3 in the OSI model?

► What is the difference between a hub, switch, and router?

► What is a VLAN?

► What is the difference between TCP and UDP?

► How do you distinguish a DNS problem from a network problem?

► What are a runt, Giant, and collision?

► What is a broadcast storm?

► What is the purpose of VRRP?

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