NetApp Frontend Developer interview questions

ROUND 1: It was an online test of 2.5 hrs. it consist of three sections: 1. MCQ based on storage systems, cloud computing. 2. psychometric questions. 3. Video recording based general questions like: why should we hire you, how can you contribute to our company etc. ROUND 2: This round took around 2 hours. It was the technical interview. the interviewers were quite comfortable and friendly. they helped at the points where i was stuck and that too because they want to check how quickly i am catching up their point and then how accurately i am answering. they were asking the basic questions to check how good i am with the concept. and when i was able to answer correctly they deep dived into the topic to check how long and how deep i can go with my basics. the questions were: what do you know about the role we are offering? what is you understanding about the storage systems? Differentiate between NAS and SAN what is DAS. give an example of DAS. What do you know about RAID concept of striping and mirroring. Full form of RAID do we have even number of disks in mirroring or odd or both? reading is faster in mirroring or writing.? why do we need RAID what is the need of parity? difference between different level of RAID what is actually stored in the parity. how many disks are required in RAID 0 what if one disk fails.