@Krishna, As you said
copy the data files to C:\data\db. This is the location of directories for MongoDB database files.
As per MongoDB BOL Here
It's By default location of directories for your database and log files. This path is required during starting of
If you want to see a new database in your
mongo shell. Then you have to import dump (.json) file through
For example in my place the installation location of MongoDB is
In Bin Folder you shall see mongod as well as all mongo shell command. I am also attaching the screen shot , for your understanding
Now open the command prompt and set the location such as
Then import your (.json) dump files through
mongoimport command like that
C:\Program Files\MongoDB\Server\3.2\bin>mongoimport --verbose filelocation of json file
Note :- Here (--verbose) will import all (.json) data files from your dump folder into MongoDB database.
For help of mongoimport you can type on that same windows like
C:\Program Files\MongoDB\Server\3.2\bin>mongoimport --help
After importing the (.json) database files . Go to your mongo shell command and type the command like
Then you can see all databases which you have import through
mongoimport shell command.
For your further ref mongoimport