MSBI Interview Questions

There is a bright future for BI professionals all over the world. The job markets are flooded with job opening related to BI roles. It is very essential to have MSBI skills for these job roles. Every interview for BI will have questions based on MSBI because MSBI is the king of business intelligence tools. In addition to this, companies are now hiring MSBI professionals.
Here is a blog that covers the most important questions that are asked during the MSBI interview. The MSBI interview questions given here will help you to crack the entry-level job openings as well as the positions requiring experience.

1. Explain MSBI along with its components.

Ans: MSBI or Microsoft Business Intelligence is a suite that contains devices for giving very productive answers for Business Intelligence and Data Mining Queries. MSBI utilizes Visual Studio alongside the SQL server to help organizations with well-suited BI arrangements.

The three main components of MSBI are-

SSIS-SQL Server Integration Services or SSIS is essentially utilized for coordinating information from numerous databases together. This device can manage immense measures of information and is in this way utilized for enormous exchanges.

SSAS-SQL Server Analysis Services or SSAS is, for the most part, used to examine the exhibition of SQL Server with regards to stack adjusting, substantial information, and exchanges, among different employments. This device is for the most part identified with the organization of SQL Server.

SSRS-SQL Server Reporting Services or SSRS relates to the reporting age. Being stage autonomous, this instrument can be utilized over various applications and is along these lines very famous in showcase nowadays.

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2. View & Materialized View- What are the differences?

Ans: Views are utilized to envision the inquiry result as a virtual table. Views are utilized wherever where a table is utilized. Any activity performed on the view will legitimately affect on the information of the base table, so we need to manage the triggers and constraints of the base table. Views are utilized for inquiry improvement and to isolate the application from future changes. Emerged sees then again are considered as pattern objects which can be utilized for abridging, replicating, and dispersing the information. It stores the consequences of an inquiry in an individual pattern article to give certain entrances to table information. The Presence of Materialized see is obvious to SQL, anyway when we use it for question revamping it improves the effectiveness of SQL execution.

3. What are the tools used in SSIS?

Ans: SSIS apparatuses are utilized to do basic undertakings like duplicating the information starting with one spot then onto the next spot. SSIS Tools are likewise used to give undertaking arrangements in which clients fabricate complex bundles. Different apparatuses in SSIS are:

1) SQL Server Export and Import Wizard

This device is utilized to manufacture reconciliation administration bundles. These bundles are utilized to import or fare information from different information sources like documents, Excel spreadsheets, social databases, and so on.

2) Business Intelligence Development Studio (BIDS)

This apparatus is utilized for making new bundles and changing the current bundles. It is likewise utilized for investigating the bundles and for building the organization unit utilized for bundle sending.

3) SSIS Menu and SSIS Designer

SSIS Tool is utilized for building bundles. While you open an incorporation administration bundle in BIDS, the SSIS menu is remembered for the menu bar.

4. How you can set up SSIS Packages on Production.

Ans: We can set SSIS Packages in three different ways.

With the assistance of Manifest. Create a sending utility with the assistance of its highlights. It is created in the receptacle organizer of the arrangement. At the point when the bundle is created, utility records are replicated and shown on the item through the show document.

Through DTExec.exe utility, we can set up SSIS bundles on creation.

We can organize SSIS bundles on creation by bringing in bundles from SQL Server Management Studio to Microsoft Database.

5. Define OLAP

Ans: The full-type of OLAP is On-Line Analytical Processing. It goes under the applications that empower assortment, propagation, and control of Multidimensional information, with a target of information analysis.

6. Explain a workflow in SSIS. What do you mean by a control flow and a data flow?

Ans: A work process is fundamentally a lot of directions that are imparted to the Program Executor as a rule to execute assignments and holders.

A control stream, for the most part, comprises at least one errands and compartments that execute when a bundle is run. To characterize conditions for running undertakings in the bundle control stream, priority requirements are utilized that associate the assignments and compartments in a bundle.

There are three control stream components that SSIS gives:

1.      Compartments that give structures in bundles

2.      Errands that give usefulness

3.      Priority limitations that associate the executables in an arranged control stream

A data flow incorporates sources and goals that concentrate and burden information, changes that alter and expand information, and ways that connection sources, changes, and goals. The data flow task is executable inside SSIS bundles that make, request, and run the data flow.

7. Mention the errors in SSIS and explain how error handling works.

Ans: There are three types of major errors in the SSIS landscape, namely:

Data connection error: This kind of error happens when the Connection Manager can't be introduced with the association string.

Data transformation error: This error happens while the information is being changed over an information pipeline.

Expression evaluation error: This kind of error happens if the run-time assessed articulations are invalid.

At the point when the section information is transformed, separated from sources, or stacked into a goal, errors happen.

Procedure errors are taken care of in the control stream by the priority control and by diverting the execution stream, and information errors are dealt with in the information stream task by diverting the information stream utilizing the error output of a part.

8. What is the procedure to log SSIS executions?

Ans: Well, on the off chance that your SSIS Package is sent utilizing Project Deployment Model and its SSIS Package is executed inside SQL Agent JOB at that point play out the accompanying strides to send out sign in Excel format.

Open the SSMS (SQL Server Management Studio).

Go on to the node that is given here

 (Select Your Server then select Integration Services Catalog then select SSISDB, the option of your folder then move on to your project and finally selectYourPackag).

The next step is to Right-click on Package then on Reports then on Standard Reports then on All executions as is given in the below image.

Now when the Report is visible to you the next step is to go and click on "All messages" option that is given there

In the Report go and do a right-click on Export then Excel-like below

9. What is the procedure to deploy SSIS packages?

Ans: The SSIS project, 'Build' offers a sending show record. Clients are required to run the show record and conclude whether to convey it onto a document framework or Microsoft SQL Server database. The SQL Server arrangement is quick and is additionally generally made sure about the record framework organization. Then again, this organization should be possible from bundles in SSMS from the document framework or SQL Server.

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10. Explain the concept of variables and also shed light on what variable scope is.

Ans: Variables are utilized to store esteems that SSIS bundles and their holders, undertakings, and occasion handlers influence at the run time. Contents can likewise utilize factors. Also, priority requirements that grouping errands and compartments into a work process use factors when imperative definitions incorporate articulations.

Integration services underpin two kinds of factors: client characterized factors and framework factors.

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11. What do you gather by the term Analysis Services?

Ans: Analysis Services is a logical information motor (Vertipaq) utilized in choice help and business examination. It gives undertaking grade semantic information models for business reports and customer applications, for example, Power BI, Excel, Reporting Services reports, and other information perception apparatuses. Analysis Services is accessible in various stages, for example, SSAS, Azure Analysis Services, and so on.

12. Explain the term Unified Dimensional Model and its importance in MSBI.

Ans: Unified Dimensional Model (UDM) goes about as an extension among clients and information sources.

It is important because of it-

  • Enriches the client model
  • Provides superior inquiries supporting the intuitive investigation
  • Allows business rules to be caught in the model to give better investigation

13. Briefly explain the architecture of SSAS.

Ans: SSAS has a 2-level engineering architecture. The following are the key highlights of SSAS design:

  • Both the server and customer parts supply OLAP and information mining functionalities to BI applications.
  • Server parts are actualized as individual Microsoft Windows Services.
  • Clients communicate with Analysis Services utilizing the standard XMLA (XML for Analysis). 

14. What is FASMI?

Ans: FASMI is the acronym for Fast analysis, shared, multidimensional, information. It is required to be complied with in order to see whether a database is called an OLAP Database or not. This is because if the database fulfills the FASMI rules then only it is considered to be OLAP.

The functions of the four wings of FASMI are-

  • Fast Analysis–is characterized in the OLAP situation in five seconds or less.
  • Share – Must help access to information by numerous clients in the variables of Sensitivity and Write Backs.
  • Multidimensional – The information inside the OLAP Database must be multidimensional in structure.
  • Information – The OLAP database Must help enormous volumes of information.

15. Differentiate between Calculate Measure and Derived Measure.

Ans: A calculated measure is being calculated at run-time. A calculated measure is being calculated when the block is being prepared = pre-calculated. In Microsoft terms, an inferred measure is called 'Named Calculation' and is made in the information source see. A calculated measure utilizes standard SQL linguistic structure, a calculated measure utilizes MDX.

Just as the derived measure should likewise be possible in the basic DWH table, you ought to consider making the computation there. Thus it will likewise be accessible for any social announcement getting to the DWH legitimately and you would not need to reproduce the figuring while questioning the table.

16. Explain MSBI partitioning.

Ans: Partitioning is where you partition your information from one coherent unit into isolated physical lumps. This can have a few favorable circumstances, for example, improved execution or simpler upkeep. You can for instance segment a table in a SQL Server database, however, you can likewise segment your measure bunches inside an Analysis Services (SSAS) Multidimensional 3D cubes.

Related Article: MSBI Incremental load in SSIS

17. Explain the Ragged Hierarchy.

Ans: The term ragged hierarchy is a client characterized progressive system that has a lopsided number of levels. Basic models incorporate an authoritative diagram where a significant level supervisor has both departmental chiefs and non-directors as immediate reports, or geographic pecking orders made out of Country-Region-City, where a few urban communities come up short on a parent State or Province, for example, Washington D.C., Vatican City, or New Delhi.

For most hierarchies in a measurement, each level has an indistinguishable number of individuals above it from some other part at a similar level. A battered chain of command is distinctive in that the coherent parent of at any rate one part isn't in the level promptly over the part. At the point when this happens, the chain of command dives to various levels for various drill down ways. In a customer application, this can make drill down ways superfluously muddled.

18. What Are The Roles Of An Analysis Services Information Worker?

Ans: Security in Analysis Services is overseen by utilizing jobs and consents. Jobs are gatherings of clients. Clients, additionally called individuals, can be included or expelled from jobs. Consents for objects are determined by jobs, and all individuals in a job can utilize the articles for which the job has authorizations. All individuals in a job have equivalent authorizations to the items. Consents are specific to objects. Each item has a consents assortment with the authorizations allowed on that object and various arrangements of consents can be conceded on an article. Every authorization, from the consents assortment of the article, has a solitary job allocated to it.

19. What Are Aggregations in SSAS?

Ans: Aggregations in SSAS offer an awesome chance to improve question execution and figuring times by "pre amassing" sets of information. An Aggregation permit a 3D square question to request a particular worth or set of qualities for a particular gathering of measurement characteristics (a set) and have the estimation previously finished before the inquiry was even inquired. The aggregation and related inquiry could request a solitary worth or spread an entire arrangement of qualities to be returned. Without the aggregations, the question would return results much increasingly slower, more CPU and memory power as the inquiry must finish the accumulation computations at run time, which takes essentially longer than if the information focuses are as of now condensed to the ideal degree of the question. It is an exchange off between making countless totals that accelerate inquiry execution versus increment handling time and memory expected to process the cube.

20. Explain the concept of writeback and its preconditions.

The writeback exchange box empowers or incapacitates writebacks for a measure bunch in a block. Empowering writeback on a measure bunch characterizes a writeback parcel and makes a writeback table for that measure gathering. Handicapping writeback on a measure bunch expels the writeback segment however doesn't erase the writeback table to maintain a strategic distance from unexpected information loss.

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21. What is processing?

Ans: Preparing is a basic and asset escalated activity in the information distribution center lifecycle and should be painstakingly enhanced and executed. Investigation Services offers a superior and adaptable preparing engineering with a thorough arrangement of controls for database administrators. We can process an OLAP database, singular shape, Dimension, or a particular Partition in a cube.

22. What MDX functions do you most commonly use?

Ans: The Most Commonly utilized functions are as per the following:

1. Cross join

The Crossjoin work restores all the mixes of the sets demonstrated by the contentions in the Crossjoin work.

2. ParallelPeriod

The ParallelPeriod work is part work, so it restores the current part, parent, predecessor, youngsters, and so on. It recovers a part dependent on the time measurement and a few conditions. 

3. Count and DistinctCount

The Count and DistinctCount are Numeric Functions. The check work figures the number of things present in a specific item like tuple, measurement, and so forth. The DistinctCount work accepts a Set_Expression as contention and returns a numerical worth which indicates the quantity of individual(distinct) things Present in that Set_Expression.

23. How to send SSRS Reports from SSIS?

Ans: SSIS can send SSRS report in various arrangements like Excel, PDF, and so on. This is accomplished by making a reported membership utilizing the Report director. In the reported membership, the organization of the SSRS report can be referenced alongside the email address of the beneficiary. sp_start_job is utilized to execute the reported membership.

24. Differentiate between a Matrix Report and a Tabular Report.

Ans: A Matrix is fundamentally the same as a table, however, it is designed to show information assembled by sections and columns, with total information at the convergences. A portion of the information you may hope to find straight can turn into a section header. This is like utilizing a rotate table in a spreadsheet.

The table and matrix data areas can show complex information connections by including settled tables, lattices, records, graphs, and checks. Tables and frameworks have an unthinkable design and their information originates from a solitary dataset, based on a solitary information source. The key contrast among tables and networks is that tables can incorporate just line gatherings, whereas frameworks have push gatherings and segment gatherings.

25. What are the DAX functions? Explain the different DAX functions of MSBI.

Ans: This function reference of MSBI gives a point by point data including linguistic structure, parameters, Return esteems, and models for every one of the more than 200 capacities utilized in Data Analysis Expression (DAX) recipes. Some DAX elements of MSBI are

DAX functions

26. What is the benefit of using SQL commands in an OLEDB source?

Ans: The OLE DB Command change runs a SQL articulation for each line in an information stream. For instance, you can run a SQL explanation that supplements, refreshes, or erases push in a database table.

You can design the OLE DB Command Transformation in the accompanying manners:

  • Give the SQL proclamation that the change runs for each line.
  • Determine the number of seconds before the SQL explanation times out.
  • Determine the default code page.

Commonly, the SQL command incorporates parameters. The parameter values are put away in outer segments in the change info, and mapping an information section to an outside segment maps and info segment to a parameter.

27. What are Performance Point services in MSBI?

Ans: MSBI utilizes these administrations to check and investigate the business. It is additionally used to settle on choices that achieve the Organization's techniques and objectives. It gives apparatuses to building scorecards, dashboards, and key execution markers.

28. What do you understand by Matrix in SSRS? What is the procedure to create Sub-Reports?

Ans: A Matrix is an information zone that is related to the report set. Networks permit us to produce cross-reference reports through the report factors showed on lines and segments.

Sub-Reports can be made from the Main reports. The Parameters present in the Main report are passed to the sub-report, and as indicated by that, a report is created.

29. What is OLAP? How is it different from OLTP?


1.OLAP is the short form of On-Line Analytical Processing. It is an ability or a lot of instruments which empowers the end clients to effectively and adequately get to the information distribution center information utilizing a wide scope of apparatuses like MICROSOFT EXCEL, REPORTING SERVICES, and numerous other outsider BUSINESS INTELLIGENCE TOOLS.

2. OLAP is used for assessment purposes to help regular business decisions and is depicted by less consistent data invigorates and contains legitimate data. However, OLTP (On-Line Transaction Processing) is used to help ordinary business errands and is depicted by visit data invigorates and contains the most recent data nearby compelled bona fide data reliant on the upkeep technique driven by business needs. 

30. What is Impersonation?

The process of impersonation permits SSAS to accept the personality/security setting of the customer application which is utilized by SSAS to play out the server-side information tasks like information get to, PROCESSING, and so on.

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This is what we have in store for you today! Do read these MSBI interview questions thoroughly as they will prepare you well for your MSBI interview in an apt manner. The list of MSBI interview questions for freshers and the MSBI interview questions for experienced professionals is going to pave your way for success in an MSBI interview. Good Luck!

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As a senior Technical Content Writer for HKR Trainings, Gayathri has a good comprehension of the present technical innovations, which incorporates perspectives like Business Intelligence and Analytics. She conveys advanced technical ideas precisely and vividly, as conceivable to the target group, guaranteeing that the content is available to clients. She writes qualitative content in the field of Data Warehousing & ETL, Big Data Analytics, and ERP Tools. Connect me on LinkedIn.