IQVIA Data Scientist interview questions

iqvia came to our college on September 2019. The written test was easy (be careful with sectional cut off). After clearing written, technical and HR happened. Told me to write a code in C: Find the third largest element from an array using the sorting technique and find the occurrence of the same. Same code using LinkedList or any other data structure except an array. HR Round: Relocation problem Night Shift problem? SDLC (Software Engineering) Which stage of SDLC do you prefer? Which is the most important stage in SDLC?