Top Qlik Sense Interview Questions and Answers For 2019
1. Most Asked Qlik Sense Interview Questions
After completing all the topics of Qlik Sense, today we are providing you the frequently asked Qlik Sense Interview Questions. These interview questions will help you to revise your learning. Also, it boosts your confidence to crack your upcoming Qlik Sense Interview.
So, let’s explore the best Qlik Sense Interview Questions.
2. Top 30 Qlik Sense Interview Questions
Below, is the list of 30 Qlik Sense interview questions which were asked in most of the interviews. Have a look –
Q.1. What is Qlik Sense?
Ans. Qlik Sense is a data analysis and visualization software. At its core, it operates with an associative QIX engine which enables the user to link and associate data from varied sources and carries out dynamic searching and selections. Qlik Sense serves as a data analytics platform for a wide range of users i.e. from non-technical to technical users. Users can display data in different ways with the help of augmented graphics of Qlik Sense.
Q.2. Name five key capabilities of Qlik Sense?
Ans. 5 key capabilities of Qlik Sense –
1) Associative model and smart searches/explorations
2) Augmented visualizations and geographic advanced analytics
3) Interactive analysis
4) Data storytelling and reporting
5) Centralized data sharing and integration
Q.3. What do you understand by the associative data model of Qlik Sense?
Ans. The associative model contains associations between data tables, which makes links (logically) between relevant data fields and data values with, giving the data a logical structure. An interactive nature achieves by the associative selection data model, where the software reacts or responds in a suitable way upon making a selection.
Q.4. What is a Qlik Sense Hub?
Ans. Qlik Sense Hub is the platform or user-interface where the user performs operations on the data to create applications with suitable charts and visualizations. It provides easy drag-and-drop functionality, associative data model, and a range of visualizations like maps, tables, distribution plots, box plots, KPIs etc.
Q.5. What are the services that Qlik Management Console (QMC) manage?
Ans. The services managed by the management console are,
- Data connectivity
- Application management
- Task management
- Security administration
- Data monitoring
Q.6. What is the QIX engine?
Ans. It is the main interactive/associative engine which facilitates all the major functionalities of Qlik Sense like,
- In-memory data indexing and calculations (RAM-based engine)
- Smart searching
- Interactive and self-service interactions
- Corresponds with scheduler, repository, and applications
Q.7. What is the function of Qlik Sense Scheduler (QSS)?
Ans. The QSS, as the name suggests, schedules and coordinate the data loads and application reloading
Q.8. Name the architectural components of Qlik Sense.
Ans. Qlik Sense’s architecture is comprised of five main components.
- Qlik Sense Proxy (QSP)
- Qlik Sense engine (QIX)
- Qlik Sense Schedule (QSS)
- Qlik Sense Repository (QSR)
- Qlik Sense applications (.QVF).
Q.9. What do you understand by data storytelling in Qlik Sense?
Ans. Qlik Sense provides intelligent and in-context commentary for the data analytics visuals being displayed on the dashboard. In this way, a complete data story is created by the software to build a picture and give a perspective of the data being presented for the analyst.
Q.10. What is the significance of charts in Qlik Sense?
Ans. Charts in Qlik Sense is a way of representing data in different ways. Charts are referred to as data visualizations in Qlik Sense. There are a number of charts available for you to choose from, like, a pie chart, histogram, waterfall, line, bar, gauge, maps, distribution plot, KPI etc. These charts can be shared with other users across many social networks and platforms.
Qlik Sense Interview Questions for freshers – 1, 2, 3, 4, 5, 7, 8, 9
Qlik Sense Interview Questions for experienced – 6, 10
Q.11. What are streams in Qlik Sense?
Ans. Applications made by the Qlik Sense’s users reside in a centralized Qlik Sense Hub. Logically, these applications are a part of a stream. A stream is where a certain number of users are authorized to work share and analyze the applications publishes in it. This means that only a selected group of users will have access to the applications of a specific stream. Suppose you are authorized to access only the apps from stream 1 and we are authorized to access the apps from stream 2. We cannot gain access to each other’s streams.
Q.12. How to create an application in Qlik Sense?
Ans. To create a new application in Qlik Sense, we start with logging in into the software with authorized credentials. Then name the new app>add data> select the file path> load the data> create a visualization using the loaded data> set the visualizations on the dashboard and your app is ready.
Q.13. What operations can you perform in Qlik Sense Desktop?
Ans. Qlik Sense Desktop has many options using which you can perform data analysis.
- View all the apps in the Qlik Sense Hub
- View and edit apps from the app overview.
- View and edit sheets individually within apps in the sheet view.
- Edit and adjust the visualizations from the edit mode.
- View and manage data tables and associations from the data manager.
- Add data and connect to databases from the data load editor.
- View the data model of both the app and sheet from the data model viewer.
- Create and watch stories in the storytelling view.
Q.14. Why do we use filter panes in Qlik Sense?
Ans. Due to the associations existing between relevant data fields and values in data tables, a defined set of data can be examined by making selections in the right ways. So, to make selections and understand the whole story behind a data set, filter panes are used.
Q.15. Explain the significance of a histogram visualization used in Qlik Sense.
Ans. A histogram, also known as a frequency plot distributes the dimension points over a certain range of intervals and displays the frequency of each bin or bar in the distribution. This gives a continuous range of values placed at equidistant intervals. Using a histogram, you can analyze in what range of intervals or bins most data is concentrated or in which bins it is minimal. This proves to be very useful when you want to analyze the performance of an entity or behavior of data over time as it shows the frequency of data on a distributed interval patch.
Q.16. What is the use of text and image visualizations in Qlik Sense apps?
Ans. Texts and image complement the other types of visualizations like charts, tables, etc used in Qlik Sense as they work as information centres for the visualizations being shown on the sheet giving them meaning and relevance. Using the Text & image option, you can add text, image (a company’s logo), hyperlink and dynamic measures aiding to the visuals of graphs and charts.
Q.17. Which situation is the best to use a treemap chart?
Ans. A treemap is the best choice to make when you have loads of hierarchical data and not that much space on the sheet. Treemaps save a lot of space on the sheet as it can contain as many data values as it can in the form of small to smallest boxes (nested rectangles). The color scheming and size grading reveals the highs and lows of the situation and tells you at an instant which product is doing good and which needs more attention and strategy. The one major drawback of a treemap chart is that it does not show negative values.
Q.18. What are the different ways through which you can add data tables in Qlik Sense?
Ans. You can add data from three types of sources.
- In-app, where you can manually enter data in an excel like entry columns.
- Data connections are all the user or administer defined data sources which reside in your system.
- Data content which are the Qlik DataMarket databases.
Q.19. Tell us a few data sources to which Qlik Sense can connect?
Ans. Qlik Sense can connect to a lot of different sources like,
- Amazon Redshift
- Apache Drill (Beta)
- Apache Hive
- Phoenix (Beta)
- Apache Spark (Beta)
- Azure SQL
- Cloudera Impala
- Google BigQuery
- IBM DB2
- Microsoft SQL Server
- MongoDB (Beta)
- MySQL Enterprise
- Sybase ASE
- Web file
Q.20. How can a user access the restricted file system in Qlik Sense?
Ans. In order to use the restricted functions and variables again in the Qlik Sense data load script, you need to disable the standard mode hence, enabling the legacy mode. Although, it should always be kept in mind that disabling the standard mode exposes the files to potential risks.
Qlik Sense Interview Questions for freshers – 11, 13, 14, 16, 17, 18, 19
Qlik Sense Interview Questions for experienced – 12, 15, 20
Q.21. How do you edit a data table in Qlik Sense?
Ans. A data table can be edited in the data manager. Select the table you want to edit and go the edit icon given at the bottom. In the editor, you can add a new field, rename an existing field name, associate with other fields, etc.
If you wish to delete a table, select the delete icon given at the bottom bar of the data manager. Also, you can reload a table (from the reload icon) and concatenate two tables.
Q.22. How can you Qlik Sense possibly deploy Qlik Sense? Explain single and multi-node deploying.
Ans. Qlik Sense’s deployment depends on the number of nodes and the arrangement of those nodes made to establish the tool. That is why how nodes connect to each other and how many decide the deployment method.
One way of deploying Qlik Sense is the single-node method in which only we use a single node to run all the functionalities and operations. Another way is through a multi-node method where more than one node is connected to a central node. The peripheral nodes are known as rim nodes.
Q.23. How Qlik Converts a useful tool for Qlik Sense users?
Ans. Qlik Converter is used to copy data load scripts from or to Qlik Sense. Generally, we use this between QlikView and Qlik Sense.
Q.24. Which are some of the important extensions we use in Qlik Sense?
Ans. Some of the extensions for Qlik sense are:
- Dependency wheel chart
- Date range picker
- CVL sunburst quadrant
- Two-dimensional heatmap
Q.25. What all functionalities can you use from the data collaboration feature of Qlik Sense?
Ans. Data collaboration with other apps and users includes functionalities such as data storytelling, publishing applications in streams, exporting and printing apps and sheets.
Q.26. What should be done if you want to save a selection state for later use?
Ans. To save a selection made in Qlik Sense app for later use, you can create a bookmark. You can create any number of bookmarks as per your convenience with the choice of selections, titles and description you wish.
Q.27. What is to be done if data tables are not showing in the data manager?
Ans. If the data manager does not show tables and their data, even if they are loaded into the script. Then go to the data manager and click on Load Data option. This will reload the table, complete the data profiling and preparation and then display the tables in the app.
Q.28. What do you know about the map visualizations in Qlik Sense?
Ans. Maps are used to geographically display data loaded in Qlik Sense. Any data which is based on information related to countries, cities, states, region etc., can be displayed using maps visualizations. In Qlik Sense there is a base map upon which you can add layers. There are different kinds of layers available such as point layer, area layer, line layer, density layer, and the background layer. Each layer displays geographical data in a specific manner.
Q.29. What is data warehousing?
Ans. Data warehousing is the process of storing data in data warehouses which are databases following the relational database model. In data warehouses, we select data from different data sources and that aggregates, organizes and manages to provide meaningful insights into data for analysis and queries. Data warehousing is a holistic approach to deal with and manage immense amounts of data that we generally use at enterprise levels.
Q.30. How is data warehousing useful for BI tools?
Ans. Data warehousing and business intelligence are often believed to go hand in hand because the data made available in the data warehouses are central to the business intelligence tools’ use. BI tools like Tableau, Sisense, Chartio, Looker etc, use data from the data warehouses for purposes like query, reporting, analytics, and data mining.
Qlik Sense Interview Questions for freshers – 23, 24, 26, 27, 28, 29, 30
Qlik Sense Interview Questions for experienced – 21, 22, 25
So, this was all in Qlik Sense Interview Questions. Hope you liked our explanation.
In this article of Qlik Sense Interview Questions, we discussed top 30 most asked questions in Qlik Sense Interview. Also, you have read their answers. Still, if you need any help, ask freely through comments.