WaitForReady – Before performing the actions, wait for the target to become ready. The following options are available:
None – Does not wait for anything except the target UI element to exist before executing the action. For example, you can use this option if you want to retrieve just text from a web page or click a particular button, without having to wait for all UI elements to load. Note that this may have unwanted consequences if the button relies on elements which are not yet loaded, such as scripts.
Interactive – Waits for the target app to indicate readiness, although some assets may still be loading.
Complete – Waits for all of the UI elements in the target app to load before actually executing the action.
To assess if an application is in the Interactive or Complete state, the following tags are verified:

Wildcards are symbols that enable you to replace zero or multiple characters in a string. These can be quite useful when dealing with dynamically-changing attributes in a selector.
Asterisk (*) – replaces zero or more characters
Question mark (?) – replaces a single character

You can notice ContinueOnError property didn‘t set so Exception Occurred Control goes to Catch Block Execute the WriteLine Activity
Note:If the ContinueOnError field of an activity inside a Try Catch is set to True, no error is caught when the project is executed.

The Selector Editor enables you to automatically generate a selector with wildcards, by using the Attach to Live Element  button.

None – Does not wait for anything except the target UI element to exist before executing the action. For example, you can use this option if you want to retrieve just text from a web page or click a particular button, without having to wait for all UI elements to load. Note that this may have unwanted consequences if the button relies on elements which are not yet loaded, such as scripts.

Target.ClippingRegion – Defines the clipping rectangle, in pixels, relative to the UiElement, in the following directions: left, top, right, bottom. It supports both positive and negative numbers.

Extracts data from an indicated web page. You can specify what information to extract by providing an XML string in the ExtractMetadata field, in the Properties panel. This can easily be generated with all the properties set by using the Data Scraping wizard.

Admin rights are needed to enable the Picture-in-Picture functionality on the machine. This is needed only the first time Picture-in-Picture is used, afterwards, the actual process can be started in Picture-in-Picture without elevated privileges.

If the User Interaction is there we need to use main Session

Merge-Adding Below
Join-Adding Beside
so
option 1 & 3 is incorrect
Option 2 is correct
n second its sorting with ID then deleteing the column. You can check the output datatable clearly.

The difference between Arrays and List is, array is a fixed size, but the size of the list can vary.
Creating and storing 100 student identification number means creating fixed size information so it is array

args.TriggerName

SchedulingMode.Sequential – Actions are executed one after another.
SchedulingMode.Concurrent – Action executions can overlap.
SchedulingMode.OneTime – Execute one action and exit.

Value type – For numeric, Boolean, DateTime and other value types, the compiler will give them a valid value if we do not explicitly do so. For example, Ints initialize to zero by default, DateTimes initialize to DateTime.MinValue by default. In Studio, Strings are also assigned a blank default value, even though they are of the reference type.
Reference type – Reference type variables, like Lists and Dictionaries, initialize to the object we provide. The compiler will not assign a value if we don‘t. This means we need to instantiate an object and assign it to the variable we‘ve just declared.

All of them are correct answers

all the scraped information is stored in a DataTable variable, that you can later use to populate a database, a .csv file or an Excel spreadsheet.

The difference between Arrays and List is, array is a fixed size, but the size of the list can vary.

MaxNumberOfResults – The maximum number of results to be extracted. If the value is 0 all the identified elements are added to the output. The default value is 100.

Read range activity is used to read a table from an Excel file from a user-defined location

The Select method is commonly used to retrieve an array of row items in a DataTable that match the filter criteria.

https://files.readme.io/f141d73-studio_settings.png

Writes a DataTable to a string using the CSV format.

Filter Data Tables in UiPath Studio
-Filter Data Tables in UiPath Studio
-Using Select Method

It will create that file for you and write the data in it.

By Default Retry Scope Activity Number of Retries is 3
so it will work for 3 times so answer is 4

[Name,Surname,Grade
James,Liam,7
Robert,Smith,9
Arthur,Scott,4
Laura,Martinez,6
Samantha,Britt,10
Elizabeth,Payton,4
Jennifer,Rollins,7
Steven,Marshall,4
]
In this Data Table
Grade<5 will be displayed

– Enable this to take control of the PiP session, if this is disabled, your mouse and keyboard only work in the main A52687- Enable this to keep the PiP window on top of other applications even when it‘s out of focus.
 Minimize – Minimizes the PiP window to the main session taskbar without interrupting the process.
 Maximize – Maximizes the PiP window.

A robotic process that requires regular human interaction is known as attended automation.

by using Column name
“Name“
“ID“
zero-based index and the row index
CurrentRow(0).toString

We can add values to the List in 2 ways
1. Through Variable Panel
2 Using Add to Collection

In the Destination dt2 duplicate row completely removed

Destination dt1
Source dt2
dt1 will be top
dt2 will be below

Optionally click Extract Correlated Data. This enables you to go through the Extract Wizard again, to extract additional info and add it as a new column in the same table.

Output
FoundElement – The found UI element. This field supports only UiElement variables.

NextLinkSelector – The selector that identifies the link/button used to navigate to the next page. Should be relative to the ExistingUiElement property.

Workflow throws an exception after 5000 ms – Find Element – Calculator: Activity timeout exceeded
After the First Exception Throw after 5000 ms program ends

Please note that, in order to interrupt the Trigger Scope activity handling sequence, the Break activity should be used. This allows the workflow to continue execution as intended.