The test is on basic C coding. There are not too many tricks. It just tests basic logic, basic structs, memory, pointers, and arrays. You should prepare yourself to be fast and be able to debug quickly.
Write a code that implements a communication protocol.
The following metrics were computed from 37 interview experiences for the Arm Software Engineer role in United Kingdom.
Arm's interview process for their Software Engineer roles in the United Kingdom is fairly selective, failing a large portion of engineers who go through it.
Candidates reported having very good feelings for Arm's Software Engineer interview process in United Kingdom.