Can we use HYPER-V as the VM instead of vagrant?
You can use any environment for the course. But we recommend
vagrant so that the environment is ready for you all to start focusing on the course. And we also won’t be able to help you with the local system much.
Is it one VM with 3 MongoD using 3 different port numbers or 3 VM’s with an individual MongoD for the setup?
It is using the
same VM (vagrant@m103) for 3 mongod with 3 different port numbers.
Open 3 terminals, run
vagrant ssh in all three. Then run
mongod processes on each terminal window.