I got these questions when being interviewed for SWE and SRE. My answers suggested to the interviewer that I should go down the SRE route. I passed in the end, because I felt the culture regarded everything as a technical problem (which has worked out for them so far) and Google was a company where you did things their way, and don't rock the boat.

Are SWE and SRE interview the same? I thought they were different enough job descriptions that it would require different interview questions.

They are different, but a lot of the skills are similar. SREs need to problem solve and while they may need to have more domain-specific knowledge I'm not sure a facts quiz administered by someone non-technical is the best way to do that.