MSBI INTERVIEW QUESTIONS AND ANSWERS FOR EXPERIENCED PDF
MSBI Interview Questions and Answers PDF Download (Desktop and Server) by Industry Experts, Practical Scenarios, Problems and Solutions. + Msbi Interview Questions and Answers, Question1: What is MS BI (Microsoft Business Intelligence)? Question2: What are the tools in MS BI? Question3. If you want to download MSBI interview questions pdf free,you can questions to accommodate freshers level to most experienced level.
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TOP 50 MSBI INTERVIEW QUESTIONS AND ANSWERS PDF Answer: AGGREGATE MuleSoft 4 Interview Questions Top 50 Latest Updated For Experienced. Frequently asked MSBI Interview Questions with detailed answers and examples. Tips and Tricks for Output formats include HTML, PDF and more. An API that. MSBI Interview Questions | Advanced Technical Topics | For freshers by passing the Report Instance to a specific rendering extension (HTML or PDF formats).
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Question 6. Question 7. What Is The Control Flow? A control flow consists of one or more tasks and containers that execute when the package runs. To control order or define the conditions for running the next task or container in the package control flow, we use precedence constraints to connect the tasks and containers in a package.
A subset of tasks and containers can also be grouped and run repeatedly as a unit within the package control flow. Containers that provide structures in packages, Tasks that provide functionality, and Precedence Constraints that connect the executables, containers, and tasks into an ordered control flow.
Question 8. What Is A Data Flow? A data flow consists of the sources and destinations that extract and load data, the transformations that modify and extend data, and the paths that link sources, transformations, and destinations. A separate instance of the data flow engine is opened for each Data Flow task in a package.
Question 9. When a data flow component applies a transformation to column data, extracts data from sources, or loads data into destinations, errors can occur. Errors frequently occur because of unexpected data values. Question An environment variable configuration sets a package property equal to the value in an environment variable. Environmental configurations are useful for configuring properties that are dependent on the computer that is executing the package.
It stands for Explicit Column Conversion.
Top MSBI Interview Questions And Answers
It is used for exact matches only. How To Log Ssis Executions? SSIS includes logging features that write log entries when run-time events occur and can also write custom messages.
This is not enabled by default. Integration Services supports a diverse set of log providers, and gives you the ability to create custom log providers. Logs are associated with packages and are configured at the package level. Each task or container in a package can log information to any package log.
The tasks and containers in a package can be enabled for logging even if the package itself is not. Variables store values that a SSIS package and its containers, tasks, and event handlers can use at run time.
The scripts in the Script task and the Script component can also use variables. The precedence constraints that sequence tasks and containers into a workflow can use variables when their constraint definitions include expressions.
Integration Services supports two types of variables: User-defined variables are defined by package developers, and system variables are defined by Integration Services. You can create as many user-defined variables as a package requires, but you cannot create additional system variables.
What Is Analysis Services? List Out The Features? Analysis Services supports OLAP by letting we design, create, and manage multidimensional structures that contain data aggregated from other data sources, such as relational databases.
For data mining applications, Analysis Services lets we design, create, and visualize data mining models that are constructed from other data sources by using a wide variety of industry-standard data mining algorithms. It manages multidimensional cubes of data and provides access to heaps of information including aggregation of data. One can create data mining models from data sources and use it for Business Intelligence also including reporting features.
Analysis services assists in creating, designing and managing multidimensional structures containing data from varied sources.
It provides a wide array of data mining algorithms for specific trends and needs. Some of the key features are: What Is Udm? Its Significance In Ssas?
A UDM is constructed over one or more physical data sources, and then the end user issues queries against the UDM using one of a variety of client tools, such as Microsoft Excel. At a minimum, when the UDM is constructed merely as a thin layer over the data source, the advantages to the end user are a simpler, more readily understood model of the data, isolation from heterogeneous backend data sources, and improved performance for summary type queries.
In some scenarios a simple UDM like this is constructed totally automatically. With greater investment in the construction of the UDM, additional benefits accrue from the richness of metadata that the model can provide. The UDM provides the following benefits: SSAS is very easy to use and interactive. Faster Analysis and Troubleshooting.
Ability to create and manage Data warehouses. Apply efficient Security Principles. The server component is implemented as a Microsoft Windows service. Each instance of Analysis Services implemented as a separate instance of the Windows service. A user can interactively explore data by drilling, slicing or pivoting. Drilling refers to the process of exploring details of the data. Slicing refers to the process of placing data in rows and columns. Pivoting refers to switching categories of data between rows and columns.
Cubes are multidimensional models that store data from one or more sources. Cubes can also store aggregations. We also build Dimensions when creating Cubes. Cubes can see only the DSV logical View. The difference between a derived measure and a calculated measure is when the calculation is performed. A derived measure is calculated before aggregations are created, and the values of the derived measure are stored in the cube. The primary criterion for choosing between a derived measure and a calculated measure is not efficiency, but accuracy.
What Is A Partition? A partition in Analysis Services is the physical location of stored cube data. Every cube has at least one partition by default. Each time we create a measure group, another partition is created.
Queries run faster against a partitioned cube because Analysis Services only needs to read data from the partitions that contain the answers to the queries. Queries run even faster when partition also stores aggregations, the pre calculated totals for additive measures. Partitions are a powerful and flexible means of managing cubes, especially large cubes.
Nonempty behavior is important property for ratio calculations. If the denominator is empty, an MDX expression will return an error just as it would if the denominator Were equal to zero. By selecting one or more measures for the Non-Empty Behavior property, we are establishing a requirement that each selected measure first be evaluated before the calculation expression is evaluated.
If each selected measure is empty, then the expression is also treated as empty and no error is returned. What Is A Ragged Hierarchy? In a ragged hierarchy, the logical parent member of at least one member is not in the level immediately above the member. When this occurs, the hierarchy descends to different levels for different drilldown paths. Expanding through every level for every drilldown path is then unnecessarily complicated.
The role of an Analysis Services information worker is the traditional "domain expert" role in business intelligence BI someone who understands the data employed by a solution and is able to translate the data into business information.
The role of an Analysis Services information worker often has one of the following job titles: Always, prefer UBO method in real time performance troubleshooting. What Is Writeback? What Are The Pre-conditions?
Enabling writeback on a measure group defines a writeback partition and creates a writeback table for that measure group. Disabling writeback on a measure group removes the writeback partition but does not delete the writeback table, to avoid unanticipated data loss.
What Is Processing? Report Server Project comprises of RDL file and it need to be deployed on report server to view the report files to application and user.
It is a solution where we can design our reports. We can add it by going into BIDS clicking on new item and then selecting reports server project. Once the solution is formed we can start forming reports. Interested in learning Microsoft Business Intelligence? We have the right Training Course.
Report builder is used to create small reports and it is a define interface. We can just drag columns in the report. It creates reports on database objects available with report model project. Report builder presented in SQL Server While creating or arranging report model project on report server we can get error or it might not get formed.
For this we need to check whether the service pack 22 is installed or not. Enrol Today. It comes with the report server and can be modify accordingly. Reporting service config file is used for report configuration details. It contains the report format and also the report import types. Report service config exist in ISS. Chart reports are for graphical representation. We can get pie charts columns harts and various other options.
Data set are the set of data which we want to show in report. Data creates on data source. Data source is the source of data from where we are receiving this data i.
SSRS use different data source. Some of them are listed below. By retrieving this web service we can access all report server section and also get the report organized on report server. To enhance the custom codes in report go to report tab on top then properties and there you will find the selections for custom code. Report server can lay up a copy of processed report in a memory and return the copy when a user opens the report. This server memory is called as cache and the process is known as caching.
Object incomes from table, stored procedures, user defined functions etc. Yes, it is possible for that we have Message Queue task. MSMQ helps in communicating two applications with each other asynchronously. Specialty is two application may be built using dissimilar technology and it works even offline messaging. Sender will stock messages inside queue and reader reads it wherever required. Logging Configuration provides an inbuilt feature which can log the detail of various events like onError, onWarning etc.
SSIS package contain mainly have two types of errors: It can be handled in Control flow bythe precedence control and redirecting the execution flow.
Top most important msbi interview questions and answers by Experts
A property value like connection string for a Connection Manager can be passed to the pkg using package configurations. Execution trees demonstrate how package uses buffers and threads. At run time, the data flow engine breaks down Data Flow task operations into execution trees.
When a package is arranged to use checkpoints, material about package execution is written to a checkpoint file. When the failed package is rerun, the checkpoint file is used to restart the package from the point of failure. If the package runs effectively, the checkpoint file is deleted, and then re-created the next time that the package is run. We can know Report Execution History as the execution log table in report server database contains all the logs from the last two months so we can see it from there.
Select-from reportserver. By Using Navigation property of a cell and scenery child report and its parameters in it we can create Drill-through reports. Asynchronous transformation have various Input and Output buffers and it is up to the component designer. It provide a column structure to the output buffer and hook up the data from the input. Parallelism is achieved using MaxConcurrentExecutable stuff of the package.
Accurate and fastest way to do incremental load is by using Timestamp column in source table and then storing last ETL timestamp. SQL Server Reporting Services is a server-based reporting platform that we can use to create and manage tabular, matrix, graphical, and free-form reports that contain data from relational and multidimensional data sources.
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Hurry up. Sign Up or Log In using. MSBI Characteristics. What do you mean by sub reports and how we can create them? We can create the adhoc reports over report builder. Report model project can be created on bids or report server. This model can have simple view.
Reporting service config file is used for report configuration details. It contains the report format and also the report import types. Report service config exist in ISS. Chart reports are for graphical representation.
We can get pie charts columns harts and various other options. Report builder is used to create small reports and it is a define interface.
We can just drag columns in the report. It creates reports on database objects available with report model project.
It comes with the report server and can be modify accordingly. Yes, it is possible for that we have Message Queue task. Processing is a critical and resource intensive operation in the data warehouse lifecycle and needs to be carefully optimized and executed.
Analysis Services offers a high performance and scalable processing architecture with a comprehensive set of controls for database administrators. MSMQ helps in communicating two applications with each other asynchronously. Specialty is two application may be built using dissimilar technology and it works even offline messaging. Sender will stock messages inside queue and reader reads it wherever required. An environment variable configuration sets a package property equal to the value in an environment variable.
Environmental configurations are useful for configuring properties that are dependent on the computer that is executing the package.
It is still complex to understand the complete functionality and structure of this new component, and many users are still relying on the reporting application they are more familiar with, which is Crystal Reports. Also, components in SSRS like Report Builder and Report Designer are meant for different users for different aspects of the report process, yet complete understanding and exposure to both is important to utilize both functions fully and extensively.
There are also issues when exporting very large reports to Microsoft Excel, as it can lead to a loss of data. Execution trees demonstrate how package uses buffers and threads. At run time, the data flow engine breaks down Data Flow task operations into execution trees. If you want to create a calculated member that intersects all measures, where do you put it and why? You would put it in a dimension other than Measures because a member in a dimension cannot intersect its own relatives in that dimension.
The table also lists the cube or dimension to which each business intelligence enhancement applies, and indicates whether an enhancement can be applied to an object that was created without using a data source and for which no schema has been generated. SSIS architecture involves four key parts: It monitors running Integration Services packages and accomplishes the storage of packages.
It contains managed API for reading Integration Services tools, command-line utilities, and custom applications.
It keeps the layout of packages, runs packages, and provides support for logging, breakpoints, configuration, connections, and transactions. It provides the in-memory buffers that move data from source to destination. A DSV is a metadata layer between the cube and the underlying data source that allows us to build our cubes without being connected to the underlying source.
It covers the dataset on which we write the query. Data set is associated with data source. In design we can design report. We can create tables and matrix reports. We Drag columns values from source. It ia used to check the preview after the report run. Member is nothing but column on dimension table.
Measure is nothing but column on fact table. The term calculated member refers to the creation of any MDX object through a calculation. The calculated member can be part of the measures dimension where a simple MDX expression such as addition or subtraction of two or more base measures results in a new measure. Such calculated members on the measure dimension are referred to as calculated measures. Calculated Member is related to the Dimension where as calculated Measure is related to the measure in measure group.
It return values of method value we can store it in some variables and can use as input for some other tasks. Always, prefer UBO method in realtime performance troubleshooting. By retrieving this web service we can access all report server section and also get the report organized on report server. Report Server Project comprises of RDL file and it need to be deployed on report server to view the report files to application and user.
It is a solution where we can design our reports. We can add it by going into BIDS clicking on new item and then selecting reports server project. Once the solution is formed we can start forming reports. In order to do this, first you need to create a subscription to the report. At the report subscription you can mention the report format and the email address of the recipient. It stands for Explicit Column Conversion.
It is used for exact matches only. Report server can lay up a copy of processed report in a memory and return the copy when a user opens the report. This server memory is called as cache and the process is known as caching. It generates a class which embodies the Report Definition. It performs on all grouping, sorting and filtering calculations.
The expressions are evaluated except the page header, footer and section items. Later it fires the Binding event and Bound event. As a result of the processing, it produces Report Instance. Report instance may be persisted and stored which can be rendered at a later point of time. The instance of reports is paged if paging supported by output format. The expressions of items are evaluated in the page header and footer sections for every page. As a final step, the report is rendered to the specific output document.
To tune-up the Reporting Services, follow the below mentioned ways: Using nolock, the issues of locking can well be resolved and the performance of the query can be improved. This can be done by using dirty read at the time of duplicating the data is unavailable.
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