The interview consisted of four parts: a behavioral round focusing on past experiences and collaboration, a technical deep-dive into networking concepts, a session with the hiring manager discussing team fit and project scope, and a coding round that tested algorithmic problem-solving.
I applied online. The process took 2 months. I interviewed at Amazon Web Services (Hong Kong)
Interview
It takes around 3-5 rounds of interview meeting different people. Questions in deep related switching and routing. However, it turns out they don’t have budget to employ qualified candidates at all.
Interview questions [1]
Question 1
What is the physical difference between single-mode and multi-mode fibre cables?
What is 3-way handshakes?
What is the OSI 7-layer? Can you briefly explain?
What will you do first when the fibre link down in 2-end?
What possible reason do you think when devices cannot communicate with each other within the same switch?
What factors will affect the router to choose the best path in BGP?
Have you heard about power meter and OTDR?
What is DWDM?
What is the purpose of port channel? What is the concern?
What is the difference between IGP and EGP?
Why the neighbour relationship cannot bring up in OSPF?
Why OSPF will not elect DR/BDR in a point-to-point connection?
What is the key factor if Area 20 need to run OSPF? What would you do if Area 30 is not connect to the backbone area?
I interviewed at Amazon Web Services (Dublin, Dublin)
Interview
A teams call interview with a technical questions segment, a behavioural questions segment and finally a short coding question. Takes just under an hour to get through everything. Interviewer was very nice.