In every interview, the questions and answers remain the same, but what changes is the way of presenting the solution. Below are the top 30 Qlik sense interview questions, along with explanations. It’s recommended to have complete knowledge about Qlik Sense and its features to answer and professionally present yourself.
1. Explain briefly about Qlik Sense?
Ans: Making accurate decisions is a challenging task for most organizations. Analytics and big data are used for concluding complex choices. Qlik sense is a powerful tool that aids its service for large companies to create visualizations from gathered insights. When data is visualized, decision-making becomes fast and easy. As a result, hours of hard work to solve a problem are reduced to a minimum.
2. How to manage data in the app with the data manager?
Ans: Data management tool is used to manage data in the application. It contains data and adds additional data gathered from different resources of Qlik that can be seen in the app. This Qlik data is visible whether they are added or loaded using scripts. A wide range of characters determines the table with data.
3. How to add a new data table?
Ans: Data can be added in many ways – Data manager & other data sources.
- Connections: The user’s previously persistent connections are used to choose the data.
- Connect my data: Choose or click from a new data resource similar to ODBC, OLE, and even data files.
- Qlik DataMarket: choose from either of the commercial databases.
- Attaching a file: using the app or directly with the help of a computer, upload the required file.
4. What is meant by Qlik Sense Charts?
Ans: Qlik sense charts are advanced tools categorized into software tools helpful for sharing visualizations of visualized data onto various platforms or social media.
5. What is the Datatype Qlik Sense?
Ans: Qlik Sense has salient features like handling text strings, numbers, dates, times, timestamps, and currencies correctly. There’s a possibility to arrange the numbers belonging to various categories to be calculated. In addition, the dates, times, and other data types can be added or subtracted.
6. Architectural parts of Qlik Sense – A quick overview.
Ans: The architectural components are QVF which stands for Qlik Sense Applications; QSR stands for Qlik Sense Respiratory; QSS stands for Qlik Sense Scheduler; QIX stands for Qlik Sense Engine & QSP stands for Qlik Sense Proxy.
7. How is histogram visualization important in Qlik Sense?
Ans: Histogram visualization gives companies or users a chance to closely look at the plot and frequency of each data or subject. With the freedom to closely analyze each subject’s performance, histogram visualization contributes to crucial decision-making.
8. How does the visualization of text and images in Qlik Sense benefit users?
Ans: Text and images add a more pleasing look to the visualized data, and they can add links and pictures to increase the value of the sheet. Not just adding photos, but many more features are included in the Qlik Sense. The images can be responsive.
9. How will you edit the Qlik Sense data table?
Ans: For data table editing in Qlik Sense, the steps are as follows, find the desired table to make changes, click on edit, make necessary changes like renaming or adding extra fields & deleting the table is also possible by selecting the icon.
10. Compare Qlik View & Qlik Sense.
Ans: Qlik view uses guided analytics whereas, Qlik sense uses self-service analytics. When compared, Qlik view has an excellently managed IT dashboard and exploration than Qlik sense. In addition, visualization sharing is not reliable in the Qlik but highly reliable in the Qlik Sense.
11. Changes b/w traditional & associative indexes.
Ans: Traditional ones include; Operated by IT dashboard, Similar and predefined thinking, Insights with in-depth information can’t be accessed properly, It takes time to make any changes & Information storage. The associative part includes; User-driven, works according to user needs, Insights and all other data are visible and processed & easy to make changes.
12. What are the four must-known Qlik Sense skills?
Ans: Presentation and data reporting, enhanced geographies & detailed analytics, amplified visualization & associative model.
13. Name the services that the Qlik Management Portal can control.
Ans: Management of Tasks, Application Management, Monitoring of Data, Security Administration, Data Connection & Surveying.
14. Mention the steps involved in creating an application via Qlik Sense.
Ans: To create an application, Login to your account with your credentials, create a new name for the application, add sufficient data required by the app, select the map file, data sharing, construct visualization from the given data, add the visualized data to the dashboard & the app is all set for functioning.
15. Name some necessary extensions included in Qlik Sense.
Ans: Need for wheel chart, sunburst quadrant CVL, choosing data value & 2D heatmap.
16. Explain the process of publishing a sheet?
Ans: Publishing a sheet is one of the mandatory Qlik sense interview questions. In the app, find the view sheets button to click it. Choose the file where you would like to publish the sheet. If the publish button is visible, it signifies the published sheet and is listed in the published list. A published sheet is visible to all the users.
17. How to deploy Qlik Sense and Qlik Sense via a single node?
Ans: Deploying Qlik sense can be made in various ways. Deploying depends on the number of nodes connected, called a common node. The two ways to deploy Qlik sense are Deploying via a single node & deploying multi-node sites. Deploying via a single node is possible only if the work is processed in a single time zone. After deployment via a single node, all the functions will be carried out on a single node.
18. How to deploy Qlik Sense via multi-node sites?
Ans: Multi-node refers to multiple connections at various nodes. Install a central node, and all apps have to be installed within the central node. The next installed node will be determined as the rim node.
19. What is the QIX engine?
Ans: It is a highly functional engine that allows all functionalities. Qlik sense to process. It has In-memory data indexing and calculations (RAM-based engine), quick and responsive searching, and Integrates with scheduler & apps.
20. What operations can you perform in Qlik Sense Desktop?
Ans: Qlik Sense desktop has numerous features for analyzing data which include viewing all apps, viewing and editing apps, viewing and editing the sheets in the sheet view mode, making necessary changes to the visualizations in the edit mode, managing tables, additional data can be added from the data loader & create and view stories from the storytelling mode.
21. Which situation is the best to use a treemap chart?
Ans: Treemap is recommended when hierarchical data. They store large data in nested rectangles, creating free space. The color schemes let us know about the good-performing products to make decisions. The drawback is that it doesn’t show negative values or products performing worse.
22. Tell us a few data sources to which Qlik Sense can connect?
Ans: Qlik Sense can be connected to various data sources like Amazon Redshift, Apache (Hive, Drill, Phoenix, Spark), Azure SQL, Cloudera Impala, Google BigQuery, IBM Database-2, Microsoft SQL Server, MongoDB, MySQL, Oracle, Postgre, Presto, Sybase ASE, Teradata, Essbase, ODBC & Salesforce.
23. What is data warehousing?
Ans: Data warehouse is a database that follows a database model. The data warehouse allows us to collect information from different sources, add them to create visualizations, and draw required conclusions or solutions. As data warehousing features include sorting and managing data, analytics is easy, and decision-making becomes more apparent. In addition, data warehousing can be used when much data needs to be calculated thoroughly.
24. How do BI tools enhance data warehousing?
Ans: BI stands for business intelligence. Often, data warehousing and work intelligence systems simultaneously, and it’s because business intelligence tools are central to data in a data warehouse. A wide range of tools, including Tableau, Sisense, Chartio, and Locker, are used as business intelligence tools. Their functions include queries, reports, analysis, data mining, etc.
25. How to merge Qlik Sense & R?
Ans: The first step is to install R and choose analysis, providing the prescribed script. We have to create a .exe folder to run a smooth design by refreshing the data and analytics. It works as R&R, version file, command source, file name, include a path on R file & include a path over text file.
26. Building a cyclic bond in the Qlik Sense?
Ans: Cyclic Dimension Group
Provide a variable dimension and change to year. Choose a button to name the label to =vDimension & fix the set value for vDimension to switch the dimensions: =select(check(vDimension,”Year,Date,Day”),”Day,Date,Year”)
Provide dimension-based values: (Rather than GetCurrentArea),
For better performance, add the principle dimension Cyclic Dimension =$(vDimension) change the label =vDimension & switch the button to a chief object.
Cyclic Measure Group
Include a variable vButton & change to the required number. Provide the button to change the label vButton & add to switch the values: =select(check(vButton,’Number’,’Type’,’Value’),’Number’,’COS’,’Value’)
Consider variable vMeasure & switch to calculate the measure values:
For better understanding, add the critical analytic Cyclic Measure =$(vMeasure), change the label =vMeasure & create the feature output.
27. How to deal with synthetic keys?
Ans: Remember the following steps to answer this question in Qlik sense interview questions. Make sure that the key is successfully linked with at least two tables. Even though a few fields of lie remarks and descriptions are present, they can’t be used as keys.
Even the data, company, name, and other data types aren’t allowed to be used as keys. Any redundant fields are strictly prohibited from connections. It signifies that it’s impossible when the key is determined for a date.
28. Qlik sense cloud operation – What does it mean?
Ans: Designing and sharing applications is easy with Qlik sense cloud. Producing and sharing visualizations or visualized data can be done within no time with the help of Qlik visualization.
The work area, panels & toolbar are three main classifications of Qlik cloud with various functions. All three sorts help Qlik sense cloud contribute to better visualization and analytics, resulting in better decisions and efficient conclusions.
29. What is the process of finding memory reduction usage by a document?
Ans: Ways to find memory reduction usage are as follows, By reducing the joins, combining tables during the execution & providing a flat structure at the loading time.
30. Why do we use variables?
Ans: Variable usage in various languages is to increase the functionality. Reusable code snippets can be stored in the variables since the variables can carry on even the state of objects.
Though Qlik sense interview questions are known to everyone and readily available on the internet, the candidate’s primary responsibility is to understand the functionality of each feature. In addition, it gives a better perception of the interview to the appearing candidates.