What are the steps need to be  taken to check whether team followed scrum or not

Did the team agree and meet Sprint Goals through which valuable, release-quality increments were delivered to the Product Owner?

This was a interview question being asked to me and I said the same points as Ian mentioned. Apart from this is there is anything else I had to mention....

If the Scrum Master is not embedded with the team for a month or two, the Scrum Master is not observing the team, and it is therefore challenging for a SM to assess a team's adherence to Scrum.

Interesting that they posed the question as whether the team was "following Scrum methodologies".

In addition to Ian's comments around delivery and inspection, I'd also want to understand how the team has tried to improve sprint to sprint in my absence.

This was a interview question being asked to me and I said the same points as Ian mentioned

If it was an interview question then I would interpret it a bit more strictly. By definition Scrum is not being followed if the team was without benefit of a Scrum Master, so there is no need to check further.

What are the steps need to be  taken  to  check  whether  scrum team followed  scrum methodologies or not  when Scrum Master was not handling the Scrum team for a month or two.

I would question whether or not the interviewer was even capable of making an good assessment of a prospect if he/she was using the term methodologies, along with such an irrelevant question, and probably not want to work there.