Submission and viva at a distance
Remote study does not determine the final examination format. Some institutions permit an online viva; others require the candidate, one examiner or the whole panel to attend in person. Ask who chooses the format, which technology and identity checks apply, and who pays any travel.
The submission process may require an electronic thesis, a repository deposit, research-data documentation and later corrected copies. Confirm notice periods, examiner appointment, likely examination timing, possible outcomes, correction deadlines and whether registration or continuation fees run while the examination is pending.
An online viva should still be a formal examination with an approved chair or panel, contingency arrangements for connection failure and a recorded outcome. A casual video discussion is not an adequate substitute.