The people were very nice, and the conversation flowed well, covering the company and what the hiring manager is looking for.

We spoke about my years of experience, my background with both small and large companies, and the tech industry in general.

When the technical interview began, I was stunned by the questions. They were so low-level and seemed more suited for a graduate hire. For example, calculating bits of a network mask? Who does that daily? There are numerous websites for such information; why would I need to memorize it?

I arrived at the correct answer but could not show the calculation.

The process did not continue for me, which is perfectly fine. I am just wondering why they would not ask higher-level questions to an interviewee with over 10 years of experience, especially after emphasizing the need for a strategic thinker on the team.

So, it wasn't a difficult interview, but then again, I failed it.

What happens when A sends an ARP to B, and C gets it as well?

IP forwarding question regarding which next hop will be used from a list.

What are the three essential items a BGP router needs to send:

• Neighbor IP address
• AS number
• Configuration