SAP Interview Experience | Set 27 (On-Campus Internship)

Recently, SAP Labs India visited our campus for internship as well as for Full time hiring

The process for internship was : 

• 1 Online test comprising of 5 sections:
  (Quant , Verbal , Debug (2 coding qs in C had to be debugged), Coding (2 qs ) & Java – Guess the output type questions)
• 2 Technical Rounds
• 1 HR Round: After each round they eliminated few students
  Branches allowed were T.Y.BTech CS & T.Y.BTech IT.

Overall 120+ students appeared for online test and out of which they shortlisted only 9 students for interviews.

F2F (1hr – 1:15) – 2 interviewers

It started off with normal HR questions
Tell me about yourself ?
About your past internships and projects, followed by brief discussion on technologies used , problems faced , learnings from it etc. Since Javascript was mentioned in my resume as one of the languages, the lady interviewer started firing qs related to it

• Diff between interpreted vs compiled languages?
• What is Hoisting in JS ?
• What is Closure in JS ?
• Call vs Apply ?
• Brief discussion on “This” keyword
• How is OOPS implemented in JS ? How is it diff then other languages?
• Multiple vs Multilevel inheritance , Which one is supported by JS ?
• Promises vs Callbacks vs Async ?
• How to catch all undefined variables in JS ?
• Types of Exceptions in JS ?
• Explain MVC model with example
• Wrote few codes in JS and asked output of each of them

Then they shifted to Database :

• Draw database diagram for implementing Notifications – one to one
• How to extend it to support – Broadcast Notifications
• Few SQL queries related to it.

They ended the interview by asking few HR/Managerial qs

• Why SAP ?
• What if we reject you?
• What if we assign you a project which is not of your interest ?
• What if we your team members don’t contribute much to the project?

They elminated 4 ppl after round 1

F2F (1hr – 1:15) – Single interviewer

This was with a very Senior guy from SAP, he directly jumped to qs

Java:

• Why do you like Java so much ? Procedural vs OOPS ?
• Access Specifiers in Java?
• Which is more secure ? Aggregation vs Composition ?
• Explain all OOPS concepts
• Abstract Class vs Interface ? Gave few scenarios and asked me when to choose which one
• Inheritance & Diamond problem in Java?
• Threading concepts -> yield() , sleep() , join()
• How synchronization is achieved ? Wait(), notify() vs notifyAll()
• Object level vs Class level locks ?
• Checked vs Unchecked Exceptions ?
• Asked few tricky qs on try, catch, finally

Since my previous internship was on Android, he asked few qs

• How multi-threading is achieved in Android ? How is it different than Java ?
• What is Async task ? preExecute(), postExecute() is called in Main thread or background thread?
• Activity lifecycle ?
• Fragment Lifecycle ?
• Activity vs Fragments ?
• How GCM push notifications works?
• How OAuth works ?
• SQLite DB vs SharedPreferences? When to use which Android app Architecture ? MVP , MVC?

Database:

• Normalization ? What is INF,2NF,3NF ? What is Denormalization?
• Gave few tables and asked to normalize them upto 3NF : Few SQL Queries related to it -> use of subquery/joins was not allowed
• Joins -> Inner vs left vs Right vs Full
• Few rapid fire qs :-> What is DML , DDL, DCL, TCL, DQL ?
• ACID properties

OS:

• What is Paging ?
• What is Demand Paging ?
• What is Virtual Memory?
• Process synchronization -> Semaphores ?

DS:

• Code to insert a node before a given node in Linked List
• Code to Reverse a linked list in K groups

They eliminated 1 guy after this round

HR Round (15-20 mins)
Normal HR Qs ->

• Tell me about yourself?
• Weakness ?
• Strengths?
• Why SAP ?
• Hobbies ?
• Willing to relocate to Bangalore ?

Finally, they selected 4 students for Internship!!