Mendix Intermediate Exam Questions and Answers

Where can published data be found - Answer- Data Hub Catalog What is a piece of data from the data hub called? - Answer- External Entry Why is the ve rsion number assigned to Odata service important? - Answer- There can ...

Where can published data be found - Answer- Data Hub Catalog What is a piece of data from the data hub called? - Answer- External Entry Why is the ve rsion number assigned to Odata service important? - Answer- There can be multiple versions of a service and users can connect to a specific one using it. What is an external entity? - Answer- An entity that is connected to a dataset in Data Hub. What source type is used within Microsoft Excel to connect to a dataset in Data Hub? - Answer- OData Feed Where can you edit the properties (i.e. attributes, name, etc.) of an External Entity? - Answer- In the domain model of the app where the External Entity is defined. What would you use to save changes to an external entity? - Answer- A Send external object activity Can you modify data in an External Entity? - Answer- Yes, if the Updateable(write) property of its public resource settings is checked. What does the D in CRUD stand for? - Answer- Delete How do you get the Data Hub Landscape? - Answer- Clicking the Landscape tab. An app connected by a grey dotted line to your service in the Data Hub Landscape means what? - Answer- The app is consuming data from your service. An app connected by a grey solid line to your service in the Data Hub Landscape means what? - Answer- The app is providing data to your service. Which of the events is performed in the beginning of the sprint? - Answer- Sprint planning What happens in the daily scrum? - Answer- Team members share their progress, plans, and issues. Which of the following approaches needs to be used to sort items in the product backlog from top to bottom? - Answer- Based on the descending priority. What do Story Points associated with a user story indicate? - Answer- Estimation of complexity of a user story. During which of the Sprint Events the development team determines user stories that will be finished in the sprint? - Answer- Sprint Planning Which folders contain source information tied to a specific module enabling reuse of this module in another project? - Answer- Javascriptsource and Javasource folders VerifyPassword.java file belonging to the System module is stored in which of the JavaScript sub-folders? - Answer- Actions Microflows.java file is stored in which sub-folder of JavaScript directory? - Answer- Proxies Which of the following sources are typically stored in the Resources folder of the App Directory? - Answer- Configuration files, HTML and Java files Files and folders that together form the styling of your application are typically stored in which of the following folders? - Answer- Theme When working in an app with version control, which concept would you use to share your database with your team? Your answer - Answer- By creating a data snapshot and adding it to the deployment directory of your app. What type of conflict occurs when you and your colleague both modified the microflow implementing the delete behavior? - Answer- Modify-Modify Which of the below listed definitions can be applied to explain what does a tagged version mean? - Answer- A revision that has been used to build a Mx deployment package. Which function is used to merge a complete branch into the mainline and is only available on the main line? - Answer- Merge feature branch Which of the below mentioned options can be used to merge revisions into and from all lines, main line or branch line? - Answer- Advanced merge Where in Mendix Studio Pro can you configure XPaths? - Answer- Microflow Retrieve actions Which Widget feature utilizes XPaths? - Answer- Selectable data constraints on Reference Selectors Where can you utilize XPaths in microflows? - Answer- In the 'Retrieve' action How do you begin typing an XPath? - Answer- [ If you want to open the XPath auto-complete menu, you need to press: - Answer- Ctrl + Space Say you are writing an XPath in a Retrieve action for the VacationRequest entity in a Microflow. If you write in the XPath window [Status = 'Cancelled'], what will be returned? - Answer- A list of all the cancelled requests Say you are writing an XPath in a Retrieve action on the VacationRequest entity in a Microflow. If you write in the XPath window [VacationRequest.VacationRequest_Submitter='[%CurrentUser%]'], what will be returned? - Answer- A list of all vacation requests submitted by the current user Which of the following options indicates a correct way of structuring resources within App Explorer? - Answer- Manually When structuring the App Explorer, which of the following subfolders would be the best choice to store things like Enumerations and Regular Expressions? - Answer- Resources When connecting a profile picture to an account of a team member, providing that it should be possible to alter the picture, which of the following options would you choose? - Answer- Create a ProfilePicture entity and configuring Image entity in the System module as its generalization. As Users by default always have multiple UserRoles, which of the following options can you put in place to ensure a user gets restricted to only one user role? - Answer- Adding the microflow logic. Which widget from the listed below needs to be used inside of a List View for visualizing a dynamic image? - Answer- Image Viewer Which of the following options can be used in Mendix Studio for customizing styling of an app? - Answer- By adjusting theme setting in the Theme Editor. Which of the following options is used for featuring the navigation menu in a sidebar? - Answer- Atlas Default Which of the following terms refers to the empty areas that form the canvas for any pages that make use of the layout? - Answer- Placeholders When a layout is based on another layout, which of the mentioned option refers to the parent layout? - Answer- Master layout Which of the principles needs to be utilized to reduce duplication of already created elements? - Answer- DRY Which of the following options indicates a default configuration of a page created using the Wizard Progress page template, consisting of 4 page template steps? - Answer- Step 2 is active, Step 1 is visited In order to re-use a header from a given page on several other pages, which of the following options would allow you to automatically update the content of this header throughout the app after its content has been changed? - Answer- Snippet Which of the following widgets can be used to select associated objects, when multiple select is possible? - Answer- Reference set selector From the buttons on a Data Grid widget that work with single select mode, which ones need to be configured with multi-select mode? - Answer- Edit, Delete Where should you configure that only selected roles are allowed to see a container on a page? - Answer- In the Conditional visibility property of the container. How is the size of popup windows set to fixed? - Answer- By setting the resizable property of the page to No. How can you ensure that the buttons in the footer area of the relatively long and scrollable pop-up page are always visible? - Answer- By removing the outer layout grid. What constraint can you use to show the most recently created items at the top of the page? - Answer- createdDate (descending) What are the default Mendix options for the popups? - Answer- Resizable with size determined automatically, with layout grid as the most outer layer of the page. How to make the popup window always visible? - Answer- Remove the outer layer grid. Which of the following options provides an easy way to limit access rights for a given role to a specific functionality within an app? - Answer- By adding a separate module. Where on the page can the Menu document be displayed in an app? - Answer- Anywhere What alternative to drawing an association between two entities can you use to connect two entities, each located in a separate domain model? - Answer- By right-clicking in an entity and selecting Add>Association. Which of the following XPath constraints should be used to allow users to only see their own notifications? - Answer- [Notifications.Notification_Account='[%CurrentUser%]'] What can you use whenever you wish to display a navigation menu, but not the main navigation tree? - Answer- Menu How many source and destination languages can you specify? - Answer- One source, one destination What does default project language define? - Answer- The language which users will see when using your app. When and how a default language of an app needs to be selected? - Answer- Automatically at the moment of app creation. Where can you choose the development language? - Answer- In the toolbar of Studio Pro Which of the following functionalities do you need to use to show a complete list of all translatable texts of a source and destination language? - Answer- Batch translation What is the easiest way to collect feedback from users from within your app? - Answer- Use the feedback widget Where is page access configured? - Answer- Module Security What would be a reasonable validation rule to use for AllowedNumberOfVisitorsPerDay? - Answer- Range <= 1000 How can you easily manage accounts for your app? - Answer- Connect navigation to the built-in Account_Overview page Is it possible limit an entity to only one object? - Answer- Yes, through a Microflow What is a limitation of a sub-microflow compared to a regular microflow? - Answer- None. Sub-microflows are equally capable. What main benefit do sub-microflows offer? - Answer- Better maintainability If you want to leave notes for future developers (or yourself) in a microflow, what can you use? - Answer- Annotations What is a limitation of a rule compared to a microflow? - Answer- You have a smaller selection of activities. You've replaced a microflow with newer functionality and want to test it. However, you don't want to delete the old microflow permanently in case something goes wrong. How can you do this? - Answer- Exclude it from the project. How can you allow users to access parts of an app (like a login page) without needing to log in? - Answer- Set up anonymous users. In a microflow, what is a token? - Answer- A system-generated value. In a microflow expression, "toUpperCase" is an example of what? - Answer- A function In a microflow, what would be an example of a variable? - Answer- $Customer You need to debug a microflow in production but don't want to impact your users. How can you trigger debugging only when you personally are running the microflow? - Answer- Set a breakpoint condition. How can you have a microflow automatically run at a specific moment in time? - Answer- Create and enable a scheduled event. What can you use to exit a loop early, instead of finishing the entire list of iterator objects? - Answer- A break event You want to find the total number of objects in a list. What can you easily use to do this? - Answer- Use an aggregate list function. What are batches used for? - Answer- Processing large amounts of data. What is the list object in a loop called? - Answer- An iterator What is another way of calling an association? - Answer- Reference How many associations can you add between two entities? - Answer- Many associations of various multiplicity. What is a good reason to choose to use an Information Entity instead of multiple associations? - Answer- You want to display additional information about an association. Which of the event handlers does always need to return a boolean return value? - Answer- The before commit. Where do you define the "persistable" property of an entity? - Answer- In the domain model For which of the following entity types does Mendix create a database table? - Answer- For persistable entity What happens on commit of a non-persistable entity? - Answer- Current attribute values and association values are stored in memory. What would be a good situation to use a calculated attribute? - Answer- When a value changes more often than it is viewed When connecting 2 entities of 2 different modules how do we typically call that association? - Answer- Cross-module association You connected two entities by a cross-module association. You want Studio Pro to take you to the associated entity in the other module - which option do you need to choose when you right click the association? - Answer- Go to the other side Which of the following options list system members that can be stored as indicated in the properties of an entity? - Answer- Created Date, Changed Date, Owner, ChangedBy Which of the following terms is used to indicate a user that created the object of the given entity? - Answer- Owner If you need to import data regularly, what is the best way to do so? - Answer- Services such as SOAP, REST, and oData What are some alternative methods for importing files into a Mendix app? - Answer- Flat files, CSV, Excel When transforming, why should you import large datasets into a flat structure before running the transformation? - Answer- To not overrun available memory What is the fastest way to create overview pages for all of the entities in your domain model? - Answer- Right click an Entity and select "Generate overview pages..." for all entities. How can you show data from multiple entities in the same data grid? - Answer- Add columns which use associations. Where do you connect User roles to Module roles? - Answer- App security What does your app need in order to import Excel data into a Mendix app? - Answer- The Excel Importer module from the Marketplace. What does the Mx Model Reflection module do? - Answer- It shows the configuration of your domain model in the client. Why shouldn't make changes to Marketplace modules? - Answer- Updating to a new version of the module erases your changes. What are JSON structures converted to in Mendix? - Answer- Objects What do you use to interpret XML or JSON into Mendix objects? - Answer- Import mappings How do you get REST data using a microflow? - Answer- Use a Call REST Service action. What are export mappings used to accomplish? - Answer- Converting Mendix objects to XML or JSON What does a message definition do? - Answer- It defines the messages that are sent to and from your app What type of role should you make for your published REST services documents in security? - Answer- Module role You want to manipulate your data as you import it. Which of the following methods would be best suited to accomplish this? - Answer- The Excel Importer module For the Export to Excel button to properly function, what must be the source of its data grid? - Answer- XPath How can you export columns from your data grid without displaying them on the page for the user to see? - Answer- Use CSS to set the column to Display: none What do you need to generate to use the Email Service in your app? - Answer- Binding Keys What is the information that you have to paste into the "Default Value"? - Answer- SecretKey and UserName What are the required fields in the send email activity? - Answer- From, To, Subject If optional values are not provided, what values need to be filled in the send email activity? - Answer- Empty Where can you download Cognitive AI modules ? - Answer- AppService of Marketplace What do you use Cognitive AI apps for? - Answer- Speech recognition, sentiment analysis, face detection, risk assessment, and fraud detection, among others What is the main feature of language detection? - Answer- Detect language content of a text Which step is correct during implemention sentiment detection? - Answer- Need sentiment detector Which one is the correct option for implementing translation feature ? - Answer- Need to create translator object from domain model entity What is the last step you do before finishing the app? - Answer- Add a translation action Where can you get license tokens from ? - Answer- Mendix support Where to set license token of Cognitive AI modules ? - Answer- Where to set license token of Cognitive AI modules ? Which page template did you use to set up the layout of the question and answer page, and the confirmation page? - Answer- Wizard Form What type of attribute do you need to create for the different luggage plans you want to offer? - Answer- Enumeration Where can you set up speech recognition rules in the Microphone widget ? - Answer- Items in Voice to action Which one is the correct language format for American English? - Answer- en-US Where can you set up the data in the Audio Player widget ? - Answer- In the General tab, under Source What do you need to do before you can test your app? - Answer- Add page navigation Which step is necessary before your app goes live ? - Answer- Preview and test