Investment Banking Summer Analyst

Position was for summer 2020. Sent my resume, cover letter, and writing sample to HR via email sometime in July/August of 2019.
Accelerated interview process straight to in office interview as a result of prior networking (September 2019)
Two 2 on 1 interviews- was presented with a sample sell side M&A transaction and asked questions about valuation methods, benefits of M&A to shareholders, and some other accounting questions. Was also asked a lot of resume questions as well as what I like to do for fun.
After this I had a phone interview with an associate and was asked more resume questions + discuss a recent deal (this was a week later)
Ended up being rejected about ~1 week after that (email from HR)

Advice: know your resume and technicals as well as why you are interested in the firm specifically + ask good and specific questions about their recent deals and industry reports (they publish them every quarter)
Overall the people I interviewed with in total (3 analysts 2 associates) were very nice and seemed interesting in hearing more about me
Note: this was for sophomore summer