In my 30s and looking to finish my degree in Computer Engineer/Science

[bluebooger]

sorry, haven't done the hadoop course

I will say that NONE of the courses I took had proctored exams

and none had group projects

for the final exam for the "SQL and R" and "Python" courses I was given 5 or 6 questions that needed answering by writing R or Python functions or SQL statements
or preforming tasks such as "what is the median age of the employees who are managers"
and then showing the SQL I used in addition to the actual answer

and if I remember correctly I was given 3 or 4 days so it was pretty easy

except for the Intermediate R course where each question had 5 parts and each part had multiple sub questions LOL
1a, 1b 1c, 1d, 1e

so it was stuff like
question 1d) answer the following 6 questions using the graph you constructed in part 1c
submit the working R code

ha ha ha