Wednesday 17 June 2020

SSIS Interview Questions (Scenario based)


Session 3 (Scenario based)


  • What type of Transformations are used to Run 10 Packages at a time?
  • Load 1 GB text file into table (fastest method) & Why?
  • Issue in package (It is failed) but is not impact on SQL Server Agent Job & Why?
  • How to Deploy the package into UAT/PROD & Explain various deployment options & which one is best in Real time?
  • How to run the package in various environments without Configuration ?
  • Explain the process flow to load 100 files into table and each file contains some more tabs & sometimes the excel files contains un structure data also . How to handle this case?
  • Excel source need to load into SQL -- Which transformation is used in the package?
  • How to use temp table throughout the package ?
  • Package should not run when there is no file and should run if file is present? How do you create this package?
  • Conditional split (it won’t work for multiple columns)
  • How to load multiple files with different names from single folder?
  • How to load multiple sheets from a single excel file?
  • How to you debug a failed package at data flow level?
  • How to use a temp table in all of the package? what are the properties we need to set?
  • replacement of OLEDB command
  • If using .csv files, what are the issues are faced
  • Excel File
    SQL
    SQL
    Table A
    Table 
    B
    Table C
     How to get the joining data from Table A,B & C in SSIS?
  • Explain step by step process to get the 10 Tables data from Oracle server to SQL Server using SSIS & without SSIS?
  • How to create the checkpoint? If check point log is deleted in which point onward the package will run?
  • Where you can specify checkpoint and Transaction
  • SCD 6 & SCD 2 scenario
  • How to change the configuration of package on Run time?                         More ....


SSIS Interview Questions


Session 2



  • Explain SSIS architecture ?
  • Difference between DTS & SSIS package (Explain briefly)
  • What is the use of deployment and explain the steps of deployment process?
  • what is 2012 deployment model ?
  • what are Package parameters?
  • Different between 2012 & 2014 BI Tool, explain each and every thing
  • SSIS Synchronous and Asynchronous transformation ?
  • What is CDC and explain about CDC?
  • Explain about Checkpoints and break points ?
  • Difference between raw file source and destination
  • Package security types ?
  • What are the types of transformations in SSIS (Like fully , partial & no blocking)?
  • What are fully blocking transformations & Partial ?
  • Encryption mechanism in SSIS
  • How to send the Encryption files to clients in SSIS
  • CLR Program
  • Error Exceptions in SSIS
  • Lookup and different types of caches and why we use it ?
  • Knowledge on Migration in SSIS?                                          More ....


SSIS Interview Questions


Session 1 (Simple)


  • Different types of Constrains in SSIS?
  • What are the Control flow components are using in your project?
  • What is DFT? What will be doing in Data flow task?
  • What is the use of Event Handlers?
  • What is mean of logging and explain about the types
  • Explain about the types of configuration
  • Difference between XML & SQL Configuration
  • Diff between OLEDB & SQL destination
  • Diff between OLEDB & ADO.net destination
  • Execute Package task & Execute Process task
  • XML task in SSIS
  • FTP task & Web service task in SSIS
  • Union all & Merge in SSIS
  • Explain about Incremental load process ?
  • How to debug the data flow task ?
  • Explain Merge ?
  • Difference between merge and merge join ?
  • SCD and its type with example?
  • Explain the lookup transformation in SSIS?
  • how to use temp table and its properties?


Saturday 6 June 2020

POWER BI Interview Questions


Session 2

  • Explain about Role based security concept (Step by Step) For example customers can visible only US & UK data.
  • Explain about service level security Mechanism.
  • How to get the data from SQL Server to POWER BI, how many ways
  • Explain about the POWER BI Reports using SSAS Cubes
  • How to share the dashboard to outside the organization, what are the pre requirements
  • Client/Customer telling that he is not able to visible the dashboard? What are the steps to follow to resolve this issue?
  • If someone delete the report in dashboard? What is happens?
  • If you create a dashboard from a report, after someone delete the report. What message is showing in dashboard?
  • If Client/Customer don’t have the POWER BI software in there machines then how to share your dashboard to him? (Explain in step by step)
  • How to call the SSRS report to Dashboard / Dashboard to SSRS report
  • Facing ay issues in Dataset level in current project?
  • One hour before data is not showing in Dashboard after some time the data is showing. How to backtrack this issue?
  • Dashboard in PowerBI and we need changes in Dimension structure in which level we can do change?     .....More


POWER BI Interview Questions


Session 1 (Simple)

  • What are the visualizations worked in the project on POWER BI?
  • Views in POWER BI Desktop?
  • What are the Apps are showing in POWER BI Service / Desktop
  • Explain about DAX functions & calculated columns
  • What are the visualizations in SSRS & POWER BI
  • Content pad uses
  • What are the filters in POWER Bi
  • What is Drill down & Drill through functionality in POWER BI
  • What are the licenses required to show POWER BI Reports
  • What is the service behind in POWER BI
  • What are the different gateways in POWER BI
  • Explain the Data model concept in POWER BI
  • Explain the relationships concept in POWER BI
  • Tell me 4 or 5 DAX Expressions in POWER BI are using in your project
  • Difference between Power bi & SSRS Reports?
  • What is the difference between management gateway enterprise and personal gateway?
  • Differences of Charts, dashboard and reports?
  • What if chart doesn't have data? How do you make sure that charts will have data?  .... More


SSAS Interview Questions


SSAS Interview Questions

  • What is use of SSAS Cube?
  • How Cubes are implemented in SSAS
  • At the time of Creating of cube, what challenges you faced?
  • How many languages are used to retrieve data from cube?
  • member,tuple,set definition explain with example
  • What is Named set?
  • Explain recent development scenario in SSAS
  • How to Deploy the Cube?
  • Type property in SSAS Dimension
  • Unknown member is SSAS
  • Fact-Many  Many- to Many-to remove duplicates ?
  • Named Calculations and example in real time
  • Explain Aggregations usage in cube level
  • How to improve cube performance?
  • Before cube creation process methods
  • What is Ragged Hierarchy?
  • What are Different Ways of Creating Aggregations?
  • What is Write Back Property in Partition?
  • In DSV Tables or Named Query Calculations. Which one is Execute One?
  • What is the Difference between Derived Measure and Calculated Measures?


Datawarehouse/DW Interview Questions


Datawarehouse/DW Interview Questions

  • Explain about Data warehousing concepts?
  • Star schema and snow flake schema?
  • Explain the structure of Fact & Dimensions tables
  • Difference between OLTP & OLAP
  • Explain about MOLAP , ROLAP, HOLAP
  • Have you ever worked on Data modeling?
  • Difference between STAR & SNOWFLAKE Schema
  • Briefly explain about DATA MARTS
  • What are Early arriving facts, late arriving dimensions?
  • Cascading parameters?
  • Types of dimensions & Facts?
  • Degeneration dimensions?
  • What is Fact less facts & Junk dimension?


Friday 22 May 2020

SSRS Interview Questions


Session 2 

  • Types of reports in SSRS
  • How to send same report data on basis of different country to different sheet in same excel?
  • How to control number of rows on each page in SSRS
  • How do you create multi select drop down/parameter? Without Allow multiple values option?
  • How to create cascading parameters? Explain with a scenario in current project?
  • What kind of export you worked in current project? 
  • What are the Issues in exporting to excel or pdf? 
  • How to set page names in exported copy? 
  • How to set limit on page size while exporting? I.e. when exported, the page should contain only 50 rows. How do you achieve it? 
  • What kind of reports you created?
  • How do you do deployments in SSRS on current project? 
  • What types of Expressions are using in current project?
  • How to use 2 different dataset fields in single report?
  • How to restrict a particular user not to see a particular report data?
  • How to split and export report data into multiple excel sheets?
  • Drill down and Drill through, Deployment types?
  • How to get deployment permissions if you don’t have to do so?
  • Explain about permissions on SSRS Reports?
  • What was the chain -- how to give the permission -- permission action on user or URL?
  • How will give permissions on URL's and Reports?   More ....

SSRS Interview Questions


Session 1 

  • What are the type of reports are available in SSRS?
  • What are the steps to follow to create the Report?
  • Different types of SSRS Reports
  • What is Parameterized Reports?
  • Difference between tabular and matrix
  • Diff between drill down and drill through
  • How to restrict rendering options in SSRS
  • What are the uses of “Sub reports” in SSRS?
  • How to hide Rendering options in Report level & Group of Reports level
  • In my system so many SQL Agent jobs are running (SSMS), I want a report to show the job running status report with all information?
  • Drill through & Drill Drop Reports
  • What is Subscriptions? And types in SSRS?
  • Data driven subscriptions?
  • Difference between report server and report manager
  • What is the use of page breaks? 
  • What is bookmark in SSRS?          
  • What types are modes are included in report server installation? More .... 


Thursday 21 May 2020

Project level interview questions


Project related Questions:


  • Explain the Roles & Responsibilities on current Project?
  • What is the day to day activates in your job?
  • Which SDLC process is using in your project (Water fall , Agile)
  • Control flow components are using in current project
  • What kind of sql & BI tool in your current project? 
  • What are the SSIS Transformations are using in your project?
  • How to Monitoring the jobs on current Project?
  • Incremental load & Full load process following in working project
  • What type of Transactions on current Projects?
  • Errors on your Project and How to handle it?
  • What are the visualizations worked in the project?
  • Facing issues in current project?