Account MongoDB API

This question is bit confusing. Second option is very obvious but first one is very strange. Azure CosmosDB, in fact, does not host any database engine for MongoDB therefore 'Database' and/or 'Collection' would not be correct selection. So it is either 'API' or 'Account'. Account because we specify MongoDB Server version we want to use for the account. But it is my understanding that CosmosDB uses wire protocol, meaning that MongoDB compatibility (i.e. Server version) is equivalent to API version. This is why we do not have create new Account to upgrade or downgrade MongoDB API. In addition, development team needs to know MongoDB Server (i.e. API) version to connect to it (or using SDK). So if this question comes up and even if I get a wrong mark, I would go with - API - MongoDB API That's because when we investigate compatibility to migrate, I would assess MongoDB server and API version we use currently, and configure 'version' field when creating CosmosDB account.

Here's a handy little tutorial. Given answers are correct. https://docs.microsoft.com/en-us/azure/cosmos-db/mongodb/tutorial-mongotools-cosmos-db

1- API First thing you have to choose for this configuration is the API. 2- MongoDB API The second is which API specifically.

Just tested. When you go to the portal and select Create Cosmos DB, the first selection is --- Which API best suits your workload? So the provided answer is correct.

API MongoDB AP

api/mongo api

It should be API / MongoDB API. For the first one, if you create a CosmosDB via the Portal, you can see that it clearly prompts "Select API option > Which API best suits your workload?" as the first step of setting up an account. The question specifically asks about "MongoDB COMPATIBILITY". It is the API you select that make it compatible. not the account. As the account is only a logical container.

Appere on exam 23-dec-2021

Account - version compatibility is selected at the account level during the creation MongoDB API -

API MongoDB API

API and MongoDB API.

https://docs.microsoft.com/en-us/azure/cosmos-db/mongodb/create-mongodb-nodejs#create-an-azure-cosmos-db-account Create an account for CosmosDB first so compatibility is Account API is definitely Mongo

API and MongoDB API for 1) Azure Cosmos DB API for MongoDB implements the wire protocol for MongoDB. This implementation allows transparent compatibility with native MongoDB client SDKs, drivers, and tools. Azure Cosmos DB does not host the MongoDB database engine. Any MongoDB client driver compatible with the API version you are using should be able to connect, with no special configuration. https://docs.microsoft.com/en-us/azure/cosmos-db/mongodb/mongodb-introduction#how-the-api-works

about API, the 2nd question is about it, no idea about question 1, I would go for Collection.

Maybe question 1 is not referring to any Azure setting at all, but just 'on which level will this solution be MongoDB compatible', and that would be 'API'?

The answer is correct, First box you choose API then in the second box it asks, but which API, then you choose, MongoDB API. This is a straight forward question. Too many answers here.