Cisco 200-901 Exam Real Questions

A developer is working on a new feature in a branch named 'newfeat123456789' and the current working primary branch is named 'prim987654321'. The developer requires a merge commit during a fast forward merge for record-keeping purposes. Which Git command must be used? 

A developer prepares a Python application to monitor network performance on specific applications. The developer tests the code on a test environment but requires more use cases and wants the scripts to be improved for different networks. Which resource must be used to take advantage of open-source communities and contributors for the application? 

A developer creates a script that configured multiple Cisco IOS XE devices in a corporate infrastructure. The internal test environment is unavailable, and no maintenance window is available to test on a low-priority production environment. Which resource is used to test the code before it is applied to the production environment?

Which technology is responsible for resolving a host name to an IP address? 

Refer to the exhibit. 

What does the Python function do?