A mid-size plumbing and air-conditioning company White Gloves invites you to help them with their Power Platform solutions. The company is working on a new mobile app for their repair team and updating a web portal. 
Please select the functional requirements that White Gloves asks you to implement.

Answer options:

A.The technician should be able to order a spare part using their mobile app
B.The mobile application interface should be user friendly
C.The user should have three attempts to log in to the portal
D.The portal response time should be less than 2 seconds
E.The mobile application should run on iOS and Android
F.The solution must send a confirmation email after a spare part order is placed

Correct Answers: A, C and F 
The project requirements are divided into two groups: functional and non-functional. 
The functional requirements define what the system should do and behave like if you push the save button, the system saves the document. 
The non-functional requirements describe the system`s properties that support system behavior, like saving the document should not take more than 3 seconds on average. 
The typical non-functional requirements include regulatory, compliance, privacy, performance specifications, recovery time, availability, etc.
Option A is correct because creating an order for a spare part on the mobile app is the app`s behavior functional requirement.
Option C is correct because the number of login attempts is the portal`s behavior functional requirement.
Option F is correct because the requirement for a confirmation email is the system’s functional requirement.
Option B is incorrect because the requirement for the user-friendly interface is a non-functional requirement.
Option E is incorrect because the requirement for operating systems is a non-functional requirement.
Option D is incorrect because the requirement for the portal response time is a performance non-functional requirement.
For more information about functional requirements, please visit the below URLs: 

https://docs.microsoft.com/en-us/learn/modules/work-with-requirements/3-functional-requirements
https://www.guru99.com/functional-requirement-specification-example.html