HOMEWORK 6.1 MONGODB

Write an aggregation query to answer this question. Type the following commands into the mongo shell: Type the validation code below. Some students have three homework assignments, etc. In this homework you will build a small replica set on your own computer. Now you will create the replica set.

You do not need to distinguish between currencies. Validate connects to your local replica set and checks that it has three nodes. What would be the appropriate settings for w and j? You have a sharded system with three shards and have sharded the collections “students” in the “school” database across those shards. Nemco February 22, at 8: You can type rs.

Don’t include their quiz scores in the calculation.

homework 6.1 mongodb

Check all that apply. You have a sharded system with three shards and have sharded the collections “students” in the “school” database across those shards. Sarath April 30, at What would be the appropriate settings for w and j?

In this homework you will build a small replica set on your own computer. It has been tested under Pymongo 2.

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homework 6.1 mongodb

Any update that does not contain the shard key will be sent to all shards. Note that are three commands.

MongoDB university m101p chapter 6 homework

Ankit Raina May 7, at 3: Validate connects to your local replica set and checks that it has three nodes. The shard key must be unique You can change the shard key on a collection if you desire.

What would be the appropriate settings for w and j? Some students have three homework assignments, etc. We will check that it works with validate. Which of the following statements are true about choosing and using a shard key?

[Solution] Week 6 :Aggregation Framework : MP: MongoDB for Developers

Create three directories for the three mongod processes. Nemco February 22, at 8: Failed with error ‘migration already in progress’, from s0 to s1 databases: You do not need to distinguish between currencies.

Which of the following statements are true about choosing and using a shard key? The oplog utilizes a capped collection.

Create three directories for the three mongod processes. Write an aggregation query to answer this question. Sarath April 30, at 6: Your task is to calculate the class with the best average student performance. Changed in version 2. Now you will create the hhomework set. Posted by Unknown at Note that not all students in the same class have the same exact number of assessments.

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In this homework you will build a small replica set on your own computer. Newer Post Older Post Home. 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.

homework 6.1 mongodb

Who is the easiest grader on campus? You can type rs. There must be a index on the collection that starts with the shard key.