On unix, this could be done as follows: Your task is to calculate the class with the best average student performance. MongoDB allows you to choose the storage engine separately for each collection on your mongod. Which company meeting these criteria raised the smallest average amount of money per funding round? Ankit Raina May 7, at 3:

Some students have three homework assignments, etc. The output of sh. Type the following commands into the mongo shell: The browser is probably wrapping them visually. Now connect to a mongo shell and make sure it comes up Now you will create the replica set.

[Solution] Week 6 : The Aggregation Framework : MJS: MongoDB for Developers

Home Subjects Programming Databases. Homewrok can see that this course could be quite challenging for someone who is new to programming.

Which of the following statements are true about choosing and using a shard key? Check all that apply. MongoDB preserves the order of writes in a collection in its consistency model.

mongodb homework 6.1

You have a sharded system homewor, three shards and have sharded the collections “students” in the “school” database across those shards. To be clear, each student’s average should include only exams and homework grades.


That felt really nice. Never miss a course! Nemco February 22, at 8: You have really selected the suitable topic node.

MongoDB university m101p chapter 6 homework

Your task is to calculate the class with the best average student performance. Write an aggregation mongoeb to answer this question. Type the validation code below.

Facebook Twitter Envelope Url. Any update that does not contain the shard key will be sent to all shards. Sarath April 30, at Build and share your own catalog of courses himework Class Central’s custom lists. Sarath April 30, at Sunday, March 12, [Solution] Week 6: Aggregation Framework Week 6: This comes from how you start the Windows command line interface, cmd.

mongodb homework 6.1

Knowledge of relational databases is not required. Sarath April 30, at Failed with error ‘migration already in progress’, from s0 to s1 databases: Check all that apply.

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This involves calculating an average for each student in each class of all non-quiz assessments and then averaging those numbers to get a class average. Add another data bearing hommework. There must be a index on the collection that starts with the shard key.


mongodb homework 6.1

This pushed me into the forums where I was actually able to answer questions and help other students. Note that are three commands. Who is the easiest grader on campus? Which of the following options will allow you to ensure that homeworrk primary is available during server maintenance, and that any writes it receives will replicate during this time?

Schema Design Week 4: What result does this expression give when evaluated?