Senior Network Engineer Mock Interview
Master 30 Senior Network Engineer interview questions covering routing protocols, network security, and infrastructure design.
Question 13 of 30
What steps would you take to identify the cause of an issue with networking data planes and control planes?
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William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
In addition to architecting networks, maintaining their functionality, and managing teams of network engineers, senior network engineers must identify root causes of network issues and quickly resolve them. The interviewer will ask a question like this to determine your ability to do this. You may be presented with several specific problem scenarios during an interview that you will need to solve. Reviewing the more common network issues and their solutions before the interview will help you be prepared for this.
William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
"In routing, a control plane describes all the functions and processes that determine the path a data packet will be routed over. On the other hand, the data plane refers to all the functions and processes that move packets across the network based on the control plane's settings and logic. When experiencing a problem with packets not being routed properly, I would first analyze whether the packets were being dropped during transmission or routed incorrectly. I would then review the functions of the data plane elements to see if they accurately followed the protocols established by the control plane. If this checked out, I would begin to analyze the control plan to determine if the routing tables were set up properly or other issues were causing the packets not to reach their destination."
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