I applied online. I interviewed at Vodafone in Jan 2020
Interview
had to fill out technical forms before the interview which I had no knowledge of but was then told it was just to screen your experience. Very technical and they seemed to want perfection, didnt get the role as I said I wasnt sure of something but didnt follow it up with but I could learn
Called by HR, usual discussion.
Then at the technical part, I had basic telecom interview questions.
I was asked about OSI Model, TCP/IP, 2G/3G/4G architectures and IPv4 and IPv6.
I would recommend learning very good the telecom architectures and be open.
Interview questions [1]
Question 1
Differences in 2G/3G/4G
Enumerate the OSI Model Layers and what is each doing