Microsoft OA DS II
Summary
I received an Online Assessment invite from Microsoft which I unfortunately failed. I faced three questions, and despite my efforts, I could only address the first one because the machine learning models required for the subsequent questions took too long to train, leading to my rejection.
Full Experience
I got an Online Assessment invite from Microsoft, which was hosted on HackerRank. The assessment duration was 165 minutes and it contained three distinct questions. The first question was about performing basic Exploratory Data Analysis (EDA) on a given dataset, and then I had to store the answers in a CSV file and upload it. The second question challenged me to build a Machine Learning model and submit its F1 score. The third question was described as being similar to the second one. The outcome was a rejection, primarily because I was only able to properly code the first question. For the second question, the ML model training process took an excessive amount of time, preventing me from completing it or even attempting the third question within the allocated time.
Interview Questions (3)
Perform basic Exploratory Data Analysis (EDA) on a given dataset, then store the analysis results in a CSV file and upload it.
Build a Machine Learning model and submit its performance based on the F1 score metric.
Similar to the second question: Build a Machine Learning model and submit its performance based on the F1 score metric, likely with a different dataset or problem context.