M121 final exam help

HI, how can I create test collection to create some samples and try the final exam questions on them. the provided m121 and aggregations credentials giving permission error when trying to create something in Atlas or Mango shell. if those are for just querying then how can I create sample collections and test final exam queries, failed two final exam questions and really need some help on this as my time is also expiring on this course and this might waste all my efforts and time I spend on this so far if I don’t get succeed on this final exam

The aggregations DB you connect using m121 user is a read only DB.You cannot create/modify anything

You have to use your sandbox cluster.You must have loaded sample_data.If you find aggregations related DB you can try your tests there
or
load aggregations DB in your local mongo db and experiment

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