UiPath Updated UiPath-ADAv1 Exam Questions and Answers by martina

The Add Log Fields activity adds custom log fields to the Robot Execution Logs for every Log Message execution throughout the entire workflow1. The custom log fields will persist until a Remove Log Fields activity is used to remove them2. The other options are not correct.

References:

• Add Log Fields documentation, Description section
• Add log field forum post, Answer by @vvaidya

The benefit of using a dictionary is that dictionary keys and values can be of different data types. A dictionary is a collection of key-value pairs, where each key is associated with a value. The key and the value can be of any data type, such as String, Integer, Boolean, Object, etc. This allows for more flexibility and versatility in storing and retrieving data3. For example, a dictionary can store employee ID numbers as the key with associated employee surnames as the value, where the key is of type Integer and the value is of type String. To access the value of a specific key, the syntax dictionaryName(key) can be used4. References: Dictionaries and How to use dictionary? from UiPath documentation and forum.

The workflow will pause the execution only once when it is executed in Debug mode with “Continue on Exception” enabled. Debug mode is a mode of execution that allows the developer to test and troubleshoot the workflow by using various debugging tools, such as breakpoints, step actions, and output messages4. “Continue on Exception” is a debugging option that enables the execution to continue even if an exception is encountered, without displaying the error message or stopping at the faulty activity5. In the workflow, there are two activities that can throw exceptions: the “Throw” activity, which throws a custom exception with the message “This is an exception”, and the “Write Line” activity, which writes the value of the “Var” variable to the Output panel. The “Var” variable is not initialized, so it has a null value by default. When the “Write Line” activity tries to write the null value, it throws a NullReferenceException, as explained in the previous question. However, since the “Continue on Exception” option is enabled, the execution does not stop at the “Write Line” activity, but continues to the next activity, which is the “Throw” activity. The “Throw” activity throws the custom exception, which is caught by the “Catch” section of the “Try Catch” activity. The “Catch” section contains a “Log Message” activity, which writes the exception message to the Output panel. The execution then moves to the “Finally” section, which contains a “Write Line” activity with the text “This is the end”. The workflow then ends successfully. The only time the execution pauses is when it reaches the breakpoint that is set at the “Throw” activity. A breakpoint is a debugging tool that allows the developer to pause the execution at a specific activity and inspect the values of the variables and arguments, as well as the output messages6. The developer can then resume the execution by using the step actions or the continue button7. Therefore, the workflow will pause the execution only once at the breakpoint, and not at the exceptions, as they are ignored by the “Continue on Exception” option. References: Debugging a Workflow, Debugging Actions, Breakpoints, and Continue on Exception from UiPath documentation.

The Where method is used to filter data in a List or Data Table based on a condition. It returns a new collection that contains only the elements that satisfy the condition12. The other methods are used for different purposes: OrderBy for sorting, GroupBy for grouping, and Select for projecting3.

References:

• Linq query to filter datatable forum post, Answer by @ppr
• How to use LINQ on a DataTable in Uipath forum post, Answer by @Dave
• How to use LINQ [Basic to Advanced] in UiPath event description, Introduction section