During the application process to the grad program at FDM, one of the most challenging interview aspects for Edel was the aptitude test. Specifically, the coding sequential questions posed difficulties. These questions required determining the next number or pattern in a sequence, similar to solving coding problems. Edel found these questions to be particularly tough, leading to some uncertainty while double-checking the answers during the aptitude test. However, it's worth noting that the level of difficulty may vary depending on the individual and their coding background or experience