Your company is planning on hosting resources using Azure services. You have to decide on the right service to use for the desired requirement. Which of the following would you use for the following requirement? 
“Provide a set of tools that can be used for implementing DevOps”

Answer options:

A.Azure Cognitive Service
B.Azure DevOps
C.Azure Bot service
D.Azure Synapse Analytics

Answer : B 
You can use the Azure DevOps set of services for implementing DevOps. The Azure DevOps services has the following services in place Azure Repos
Azure Pipelines
Azure Boards
Azure Test Plans
Azure Artifacts
Option A is incorrect because this is used to build cognitive intelligence in applications
Option C is incorrect because this is used to build intelligent bots within applications
Option D is incorrect because this is used to host a data warehouse
For more information on Azure DevOps services, please visit the below URL 

https://azure.microsoft.com/en-us/services/devops/