Network Technical Support Engineer Interview Questions

7,987 network technical support engineer interview questions shared by candidates

What is the difference between TCP and UDP? Explain the OSI model and its layers. What is a subnet mask, and why is it used? Can you explain ARP and its purpose? What is the difference between a router and a switch? Define DNS and how it works.
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Network Engineer

Interviewed at Movate

3.6
Nov 26, 2024

What is the difference between TCP and UDP? Explain the OSI model and its layers. What is a subnet mask, and why is it used? Can you explain ARP and its purpose? What is the difference between a router and a switch? Define DNS and how it works.

1) Explain STP, VTP, DORA Process, First Hop redundancy protocols, LACP, PAGP 2) Explain OSPF, LSA Types, OSPF Area 3) Explain the difference between IPSEC and GRE tunnel 4) Explain BGP Attributes and how BGP chooses the best path 5) Explain Inter Vlan Routing and how can we achieve it? 6) Explain Traceroute and the working of Traceroute 7) Explain the happenings in the Tranport layer and also the functions 8) What is the port No for SNMP? is it UDP or TCP 9) How to force Sync a ASA Firewall with its mate? What is the command? 10) Why a loopback interface is advertised as /32 in OSPF even when its configured as /24? And How can we stop it? 11) What are classless protocols? 12) What is ARP? 13) Give some examples of the protocols working in the application layer! 14) Explain Asymetric Routing! 15) What kind of issues we may face in Site to site connectivity?
avatar

Network Engineer

Interviewed at Movate

3.6
Jan 27, 2016

1) Explain STP, VTP, DORA Process, First Hop redundancy protocols, LACP, PAGP 2) Explain OSPF, LSA Types, OSPF Area 3) Explain the difference between IPSEC and GRE tunnel 4) Explain BGP Attributes and how BGP chooses the best path 5) Explain Inter Vlan Routing and how can we achieve it? 6) Explain Traceroute and the working of Traceroute 7) Explain the happenings in the Tranport layer and also the functions 8) What is the port No for SNMP? is it UDP or TCP 9) How to force Sync a ASA Firewall with its mate? What is the command? 10) Why a loopback interface is advertised as /32 in OSPF even when its configured as /24? And How can we stop it? 11) What are classless protocols? 12) What is ARP? 13) Give some examples of the protocols working in the application layer! 14) Explain Asymetric Routing! 15) What kind of issues we may face in Site to site connectivity?

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