Networking Interview Questions

Last Updated: Nov 10, 2023

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Networking Interview Questions For Freshers

What is an IP address?

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What is the purpose of a subnet mask?

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What is the difference between TCP and UDP?

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What is a default gateway?

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What is an Ethernet switch?

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What is a firewall?

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What is DNS?

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What is a VLAN?

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What is the purpose of NAT?

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Explain the OSI model.

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What is ARP?

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What is DHCP?

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What is a MAC address?

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Networking Intermediate Interview Questions

What is OSPF and how does it work?

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What is STP and why is it important?

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What is a proxy server?

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Explain the difference between a router and a switch.

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What is the purpose of an Access Control List (ACL)?

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What is a VPN?

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Explain the difference between a hub and a switch.

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What is BGP and how does it work?

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What is a DNS resolver?

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What is IPsec?

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What is VRRP and how does it work?

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What is the purpose of a DMZ?

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What is QoS and why is it important?

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What is SNMP?

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What is multicast routing?

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Explain the difference between static and dynamic routing.

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What is MPLS and how does it work?

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Networking Interview Questions For Experienced

What is VxLAN and how does it work?

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What is spanning tree protocol?

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What is EIGRP and how does it work?

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What is VLAN trunking?

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Explain the difference between RIP and OSPF.

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What is HSRP and how does it work?

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What is VTP and how does it work?

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What is BFD and why is it important?

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What is GRE tunneling?

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Explain the difference between access control lists and firewalls.

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What is VRF and how does it work?

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What is BGP route reflector?

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What is dynamic multipoint VPN?

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What is RSVP and why is it important?

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What is IS-IS and how does it work?

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What is H.323?

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Explain the difference between L2 and L3 switches.

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What is MPLS TE and how does it work?

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What is PAgP and how does it work?

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What is VRRP and how does it work?

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What is FHRP and why is it important?

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What is ECMP?

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What is HSRP and how does it work?

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What is LACP and how does it work?

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What is SSH and why is it important?

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Explain the difference between static and dynamic NAT.

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What is MPLS label switching?

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What is VSS and how does it work?

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