EN - Sample Exam - Associate Reactive Developer

Which of the following statements is true?

• A. An Entity Identifier must have its Data Type set to Long Integer.

• B. An Entity Identifier must be set to Auto Number.

• C. An Entity Identifier can only be a single attribute.

• D. An Entity Identifier is created automatically and cannot be modified.

What kind of information should NEVER be stored in Client Variables?

• A. Number of login attempts

• B. Passwords

• C. Username

• D. User Preferences

Which of the following sentences about the On Initialize lifecycle event is true?

• A. The On Initialize event is triggered before the Screen or Block is rendered and before fetching any data.

• B. The On Initialize event is triggered after the Screen or Block has been rendered, so you can use it to manipulate its structure.

• C. The On Initialize event is triggered after an Aggregate finishes fetching data and can be used to act upon the retrieved data before it's used in the Screen.

• D. The On Initialize event is triggered after the input parameter of a Block changes.

The Screen below has two Dropdowns: one to select a Country and the other to select a City. The GetCountries and GetCities Aggregates fetch the data displayed in the dropdowns and both have the Fetch property set to At Start. Which of the following options is not a valid step to only fetch the cities of the country selected in the dropdown?

• A. Set the Fetch property of the GetCities Aggregate to Only On Demand.

• B. Refresh the GetCities Aggregate in the OnChange Action of the Country Dropdown.

• C. Filter the GetCities Aggregate by the selected country.

• D. Call the GetCities Aggregate in the GetCountries' On After Fetch Event handler.

Regarding Blocks in OutSystems reactive apps, which of the following options is correct?

• A. Blocks can only be instantiated on Screens.

• B. Blocks can be instantiated on Screens and other Blocks.

• C. Blocks can be instantiated on Client Actions on the Screen.

• D. Blocks can be instantiated on Screens and external HTML pages, using a special HTML tag.

Which of the following options is a valid usage of the Trigger Event node?

• A. The Trigger Event allows a Block to notify its parent (Screen or Block) that something relevant occurred in the scope of the Block.

• B. The Trigger Event allows a Screen to notify its children (Blocks) that something relevant occurred in the scope of the Screen.

• C. The Trigger Event allows a Block to notify its children (other Blocks) that something relevant occurred in the scope of the Block.

• D. The Trigger Event allows a Screen to notify its parent (Screen or Block) that something relevant occurred in the scope of the Screen.

A Form has a Save button with the Built-in Validations property set to Yes. Which validations are automatically performed when a user clicks the button?

• A. Check if the mandatory fields are filled in.

• B. Check if the mandatory fields are filled in and if the non-mandatory fields that are later used in the logic are also filled in.

• C. Check if the mandatory fields are filled in and if the data submitted by the user matches the data type expected in the input fields.

• D. Check if the mandatory fields are filled in and if the data submitted by the user matches the data type of the Form’s data source.

The CountriesDropdown will allow users to select a country. What should be set in the Options Text property to make sure that the names of the countries appear in the dropdown?

• A. Country.Id

• B. GetCountries.Country.Label

• C. Country

• D. Country.Label

Considering a Button in a Screen, which of the following options cannot be set as its On Click property?

• A. Screen.

• B. Client Action.

• C. Block.

• D. External Site.

In the Aggregate below the Orders are fetched with their reviewers (Employees). Which of the following options is correct?

• A. The Aggregate only returns Orders with Priority, Status and Employee.

• B. The Aggregate returns Orders without Employee and without Status.

• C. The Aggregate returns Orders with Status and at least one Employee.

• D. The Aggregate returns Orders with Priority and with zero or more Employees.