New Release UiPath-ADAv1 UiPath Certified Professional - Developer Track Questions

The DateTime.ParseExact method converts a string into a DateTime object using a specified format and culture1. The format parameter defines the order and symbols of the date and time components in the string2. The culture parameter determines the conventions for date separators, time indicators, and other symbols3.

In this case, the string variable DateString has the value “03/03/2023 16:23:11”, which means the 3rd of March, 2023, at 4:23:11 PM. To convert this string into a DateTime variable, we need to use the format “dd/MM/yyyy HH:mm:ss”, which matches the order and symbols of the string components. The “dd” represents the day as two digits, the “MM” represents the month as two digits, the “yyyy” represents the year as four digits, the “HH” represents the hour as two digits in 24-hour format, the “mm” represents the minute as two digits, and the “ss” represents the second as two digits2. The slashes (“/”) and colons (“:”) are used as date and time separators respectively. The Culturelnfo.InvariantCulture parameter specifies that the string uses invariant culture, which means it is not associated with any specific language or region3.

Therefore, option D is the correct expression to convert the string variable DateString into a DateTime variable. Option A has a wrong hour format (“hh” instead of “HH”), which would cause an exception if the hour is greater than 12. Option B has a wrong order of day and month (“MM/dd” instead of “dd/MM”), which would result in an incorrect date. Option C has a wrong minute format (“mm” instead of “MM”), which would cause an exception if the month is greater than 12.

The Queue Items should be processed by a single robot executing a Performer workflow in the following order:

• EmployeeID1
• EmployeeID4
• EmployeeID8
• EmployeeID3
• EmployeeID6
• EmployeeID9
• EmployeeID5
• EmployeeID2
• EmployeeID7

A queue is a container that holds an unlimited number of items that can be processed by a robot1. A queue item can have a deadline and a priority, which affect the order in which the robot retrieves the items from the queue2. The Performer workflow is a part of the REFramework template that processes the queue items using the Get Transaction Item activity3. The order of queue execution is determined by the following rules4:

• Items that have a deadline are processed first, in order of priority and according to the set deadline for items with the same priority.
• Items that have no deadline are processed next, in order of priority and according to the rule First In, First Out for items with the same priority.

Based on these rules and the exhibit, the order of queue execution is as follows:

• EmployeeID1 has the earliest deadline (2050-01-01) and high priority, so it is processed first.
• EmployeeID4 has the same deadline as EmployeeID1, but normal priority, so it is processed second.
• EmployeeID8 has the same deadline and priority as EmployeeID4, but it was added later to the queue, so it is processed third.
• EmployeeID3 has the next earliest deadline (2050-01-02) and high priority, so it is processed fourth.
• EmployeeID6 has the same deadline as EmployeeID3, but normal priority, so it is processed fifth.
• EmployeeID9 has the same deadline and priority as EmployeeID6, but it was added later to the queue, so it is processed sixth.
• EmployeeID5 has no deadline, but high priority, so it is processed seventh.
• EmployeeID2 has no deadline and normal priority, so it is processed eighth.
• EmployeeID7 has no deadline and low priority, so it is processed ninth.

References:

• About Queues and Transactions documentation from UiPath
• Processing Order documentation from UiPath
• Performer documentation from UiPath
• Order processing queue forum post from UiPath Community

The IndexOf method of String values returns the index of the first occurrence of a specified character or substring in a given string. The index is zero-based, meaning that the first character has the index 0, the second character has the index 1, and so on. If the character or substring is not found, the method returns -1. In this case, the expression StrVar.IndexOf(“U”) returns the index of the first occurrence of the character “U” in the string “UIPATH STUDIO”, which is 0. Therefore, the answer is A. 0. References: String.IndexOf Method, String Variables

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