Simple Question at First: What is DNS
Network Security Specialist Interview Questions
594 network security specialist interview questions shared by candidates
Describe TCP and UDP, and your experience with firewalls.
Name a situation in which you, your team, or a project you were assigned to failed. What steps did you take to mitigate that failure?
Troubleshooting Scenarios
Mostly about Cisco Networking concepts and troubleshooting methods
what is routing protocols
OSI layers
About a six question quiz. It's not designed for people to get all the answers right, it's designed to see how you think. Use any resources, any, internet, phone, applications on the laptop they'll give you, etc. In general they'll give you a Linux stack trace to analyze, a regex string to create a match for (regex101. Com), how to do something in Linux (tail - F), a code chunk to define what it does, they give you raw configuration files (text based config) for a firewall and ask you to describe details of rule X, Most people get between a 10 and 20 out of 30.
What firewalls/ network security devices have you worked on?
Well known ports number were given (21, 22, 25, 443, 137, 1433, 3389, ...)
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