You are a Solution Architect and planning the go-live with a new solution. 
What are three activities you should perform just before to go-live?

Answer options:

A.Performance testing
B.Deployment planning
C.User acceptance testing
D.Risk assessment
E.Security testing

Correct Answers: A, B and D 
Before you can go-live with a Power Platform solution, you need to conduct the set of proper tests. A Solution Architect takes part in testing by providing directions for the test and development teams, triaging problems from testing, and participating in go-live planning and implementation. 
There are several types of common tests for Power Platform projects. They include unit, functional, acceptance, regression, integration, security, performance, disaster recovery, etc. A Solution Architect and the team should define the types and scope of appropriate tests. 
After the main volume of tests is done, a Solution Architect needs to perform several activities before implementing the go-live strategy: Performance testing — ensuring that solution performance is within established parameters.
Deployment planning — includes plan and activities before go-live deployment.
Risk assessment — additional solution examination for possible points of failure.
All other options are incorrect. 
For more information about the go-live preparation activities, please visit the below URLs: 

https://docs.microsoft.com/en-us/learn/modules/project-test-process/2-plan-go-live