Explanation:

The correct sequence for the computation of the signature for client apps that receive Orchestrator requests and need to check their authenticity is:
* Retrieve the X-UiPath-Signature HTTP header. This header contains the signature of the request body, encoded in Base64. (UiPath Orchestrator documentation1)
* To obtain the raw signature bytes, decode the value of the header from Base64. You can use any tool or library that supports Base64 decoding. (UiPath Orchestrator documentation1)
* Compute the hash using SHA256 and the signing key (UTF-8 encoded). The signing key is a secret value that is shared between Orchestrator and the client app. You can use any tool or library that supports SHA256 hashing. (UiPath Orchestrator documentation1)
* Compare the computed signature to the value from X-UiPath-Signature HTTP header. If they match, then the request is authentic and has not been tampered with. If they do not match, then the request is invalid and should be rejected. (UiPath Orchestrator documentation1) References:
* 1: Webhooks - UiPath Orchestrator.

The Starts in Background option is a property of the process that indicates whether the process can run in parallel with other processes on the same machine. If this option is enabled, the process can run as a background process, meaning that it does not require user interaction or UI automation. This allows the process to run concurrently with another process that performs UI automation, such as the second process in the question. The Starts in Background option can be configured in the project settings of the process in UiPath Studio, or in the process settings in Orchestrator.
References:
Background Process - UiPath Studio
Background Process Automation - UiPath Robot
Managing Processes - UiPath Orchestrator

Comprehensive and Detailed Explanation:
In ServiceNow, applications can be installed through the following methods:
# Option A (Correct):
* Applications can be installed using the "Install" button in the Application Manager.
# Option C (Correct):
* Developers can import applications from an XML file using the Import XML functionality in the Studio or System Applications module.
# Option F (Correct):
* Applications from the ServiceNow Application Repository can be installed and managed through System Applications > All Available Applications.
* Option B (Incorrect):
* The Google Play Store is not related to ServiceNow applications.
* Option D (Incorrect):
* While ServiceNow Store provides third-party applications, this is not the same as directly installing applications from the Application Repository.
* Option E (Incorrect):
* Stack Overflow is a developer Q&A site and does not provide downloadable ServiceNow applications.
References:
* ServiceNow Documentation: Installing Applications

A selector is a string of characters (XML fragment) that identifies a UI element uniquely within the UI hierarchy. A selector must be valid for only one element in an application, otherwise the Type into activity will not be able to find the correct target for typing the text. If a selector is valid for more than one element, it is considered ambiguous and unreliable. Therefore, the answer is A. 1 element. References: Selectors, Type Into

Explanation:
To configure the Filter Data Table Wizard to keep all invoices with a Total value that is over 10 000 USD, you should choose the following options from the drop-down lists:
Column: Total Operation: > Value: 10000
The reason for choosing these options is to filter the data table based on the condition that the Total column value is greater than 10000. This will keep only the rows that satisfy this condition and remove the rest. You can learn more about the Filter Data Table activity and how to use it from the following sources:
* Four Ways to Filter Data Tables in UiPath Studio | UiPath
* How to Filter Data Table - Help - UiPath Community Forum
* Filter Data table with specific column - UiPath Community Forum