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Took an online assessment on HackerRank. It included four multiple-choice questions on various security measures, such as transfer protocols. There were also two coding questions. One question was on islands and graphs, I think.

Online Assessment: For most roles, the process begins with an online assessment which candidates are expected to take. Initial Screening: An initial screening is conducted to filter out unqualified candidates. This can be a phone or video interview

You will be given one to two algorithm questions and asked to solve them. You will need to explain your code to the interviewer afterwards. You are also expected to know the fundamentals of operating systems and computer networks.