Network Support Engineer Interview Questions

525 network support engineer interview questions shared by candidates

Walk me through how you would troubleshoot a client not being able to access a specific website. How would you go about applying firewall rules in Linux? How does DHCP work? Describe what an IP address is? MAC addresses? Vlans? How would you explain DNS? Describe a time you had to troubleshoot an issue with a non technical client on the phone.
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Network Support Engineer

Interviewed at Adaptiv Networks

3.6
Jun 24, 2025

Walk me through how you would troubleshoot a client not being able to access a specific website. How would you go about applying firewall rules in Linux? How does DHCP work? Describe what an IP address is? MAC addresses? Vlans? How would you explain DNS? Describe a time you had to troubleshoot an issue with a non technical client on the phone.

I was given a network diagram and a couple different problem scenarios, and had to identify potential causes of the problems. Also, had to tear down a TCPDump log to identify key details (MAC, IP addr, port, relevant http headers, etc). Then there were various questions related to Windows, Linux, browsers, protocols, etc.
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Network Support Engineer

Interviewed at F5

3.8
Jan 11, 2019

I was given a network diagram and a couple different problem scenarios, and had to identify potential causes of the problems. Also, had to tear down a TCPDump log to identify key details (MAC, IP addr, port, relevant http headers, etc). Then there were various questions related to Windows, Linux, browsers, protocols, etc.

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