Please refer the below links for MSBI interview questions :


SSAS


http://sqlschool.com/MSBI-Interview-Questions.html


http://www.msbiguide.com/2012/11/ssas-interview-questions-and-answers/


http://dwbi1.wordpress.com/2010/11/30/ssas-developer-interview-questions/


SSRS


https://www.udemy.com/blog/ssrs-interview-questions/


http://www.venkateswarlu.co.in/Interview-Questions/ssrs_interview_questions_1.aspx


http://cybarlab.com/ssrs-interview-questions-with-answers


SSIS :


https://www.udemy.com/blog/ssis-interview-questions/


http://careerride.com/ssis-interview-questions.aspx


https://www.katieandemil.com/ssis-interview-questions-and-answers-pdf-download?tab=article


http://www.msbiguide.com/2012/12/ssis-interview-questions-and-answers/