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Question 1 (2 points) Which MongoDB feature can be used to enhance the performance of queries? Select one. Indexing File storage Aggregation Special collection types Question 2 (2 points) True or false: MongoDB supports horizontal scaling out. True False Question 3 (2 points) True or false: MongoDB supports web applications that need to automatically time out user sessions. True False Question 4 (2 points) The MongoDB shell uses which programming language? Select one. Python JavaScript C# O Java