i found this on the official forum for cambridge postgraduates which i found very helpful.
Know what you said in your application and be prepared to explain/say more about that, in a fairly informal, conversational setting.
review your 5-10-year career plan, elucidating how the chosen degree aligns with your personal goals.
Be prepared to NOT be asked about anything off of your resume or the standard "tell me about yourself." With that said, if there are any standard behavioral questions (e.g., tell me about a time where....XYZ), simply pull a story from your past (something relevant but don't be afraid to use an example not too far off the cuff) and use the 'STAR' method; furthermore, justify your decision-making process and review your 5-10-year career plan, elucidating how the chosen degree aligns with your personal goals. Interviewers are less interested in the standard 'walk me through your resume' question; instead, they focus on the rationale behind your decisions.
If you've reached the interview stage, take a deep breath, as it is primarily a formality and a 'fit' interview, akin to most interviews at this stage in the process, whether at this university or other high-performing roles. Be prepared to know why you are a good candidate or what you can contribute to the cohort vs program (I differentiated these two on purpose to be precise, as they have different answers). Please avoid going on tangents and focus on a topic and do not be afraid to ask for a few seconds to gather your thoughts (interviewers would respect that more because it shows situational awareness). Additionally, always prepare 2-3 thoughtful, non-standard questions for your interviewers.
Craft these questions to be non-generic and forward-looking, inquiring about the program's specific plans for the next couple of years, how the program has addressed recognized weaknesses, and more. However, this does not mean merely asking those questions. Conduct thorough research on the program and any recent events. For example, I recently learned about a few biotech companies that were Cambridge-based spin-offs, raising $50-$150M+. I made a specific comment about the Cambridge biotech ecosystem (specifically genomics and the like given that's more prevalent there), supporting my reason (and how it relates to my career as well as my interest in broadening my academic/professional network) for pursuing the program, followed by a broader question related to my comment (i.e., I always refrain from asking direct questions; instead, I make a relevant comment that exhibits broad knowledge and why the relevant comment I made is important to me, without coming off too strong, and then tie it into a question. This approach is more holistic, which shows an applicant's deep interest and understanding..
> Know the rationale behind your decisions.
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