[wuliwong]

I don't understand how this is a problem? If OP is a Senior Dev and interviewing for another Senior Dev role, wouldn't you assume that this new role is probably going to require similar skills to perform similar managerial type responsibilities?

I mean, sure go ahead and prepare for interviewing, brush up on whatever you think will help. But if a company has a policy of consistently rejecting candidates based on testing of skills that are never used on the job, it sounds like there's a lot of room to improve that interview process.

[malvosenior]

A lot of time people will move to a new job for a more senior position than their current job. Being a Sr. Engineer at a Series A funded startup can be very different than being a Sr. Engineer at Facebook (not always, but often). I would expect a higher bar at a larger engineering organization.

If someone is effectively testing for these more difficult subject matters then it's quite possible that they themselves and other co-workers are competent in them (as they passed the same test).