Interview prep
Network Engineer interview questions
13 questions network engineers get asked, grouped by type. Under each one are the skills it is really testing, so you can pick a story from your own work that shows them.
Technical
- Walk me through how you troubleshoot a connectivity outage affecting multiple sites.Tests: troubleshooting, network design
- How do you design network segmentation to limit the blast radius of a compromised device?Tests: network design, security
- How do you plan network capacity ahead of an expected increase in traffic?Tests: capacity planning, network design
- Describe a time you diagnosed a routing problem that wasn't obvious from the first symptoms.Tests: troubleshooting, network design
Situational
- You need to make a network change that risks a brief outage during business hours. How do you handle it?Tests: change management, risk assessment
- An issue spans your network and a third-party provider's, and each side blames the other. How do you move it forward?Tests: troubleshooting, communication
- You detect unusual traffic patterns that could indicate a security incident. What do you do first?Tests: security, incident response
- Part of the network still runs on hardware nearing end of support. How do you plan the upgrade without disrupting service?Tests: network design, risk assessment
Behavioral
- Tell me about a time you disagreed with a coworker and how you handled it.Tests: conflict resolution, communication
- Describe a project or task that did not go well and what you did about it.Tests: ownership, reflection
- Give an example of persuading someone to adopt an idea they initially resisted.Tests: influence, communication
- Walk me through how you decided what to work on when you had more requests than time.Tests: prioritisation, judgment
- Tell me about a time you had to learn something new quickly to get a job done.Tests: learning agility, ownership
Getting the resume right first? See resume guidance for Network Engineers, or browse interview questions for every role.