Question 1

If you have a screen that is slow to show to the user, what should you do to speed it up?

Options :

A : Replace any complex queries in preparation by aggregates and cycles to process their results.

B : Do all the pre-processing during preparation to speed up operations when calling screen actions

C : Replace all aggregates and queries by server actions that will process the information and return the results.

D : If possible, avoid doing any query results processing during preparation, delaying these tasks to any write operations

Answer: D

Question 2

Select the correct statement regarding the differences between a “Submit” and an “Ajax Submit”

Options :

A : Even though the Preparation is executed in both methods, the Ajax Submit request is made through Javascript, avoiding the browser to hang while waiting for an answer

B : The Ajax Submit request is executed asynchronously and allows to refresh only parts of the screen, however the server-side logic doesn’t have access to all contents previously loaded during the Preparation

C : There are no differences between both platform methods, they both implement the HTTP POST method

D : None of the above

Answer: B

Question 3

When using Expand Inline parameters in SQL queries, which of the following is not a best practice?

Options :

A : All options are bad practices.

B : Build WHERE column IN (@values) clauses by wrapping all the values in a EncodeSql call: values =

EncodeSql(name1 + "," + name2 + "," + name).

C : Perform manual string encoding using the Replace function.

D : Use EncodeSql to encode the full contents of an SQL parameter. For example: myparameter = EncodeSql("WHERE surname = " + @myVariable1 + " OR name = " + @myVariable2)

Answer: A

Question 4

In OutSystems, can asynchronous processes interact with the database?

Options :

A : Asynchronous processes cannot interact with the database

B : Yes, asynchronous processes can read and write to the database

C : Database interactions are automatically handled by OutSystems and not relevant for asynchronous processes

D : Asynchronous processes can only read from the database but not write

Answer: B

Question 5

Please select the correct statement:

Options :

A : To change the setting “Internal Access Only” of a WebReference, it’s necessary to open Service Studio and change the setting manually

B : To change the setting “Internal Access Only” of any WebService, you do not need to open Service Studio, just change it in the Service Center

C : From a consumer perspective, the only differences between a Public Action and a Local WebService are the Database Transactions and the Structures

D : From a provider perspective, a Public Action and a Local WebService will generate the same code in the Webserver

Answer: B

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