M102 HOMEWORK 3.2

Once done with that, run homework. Letters are not case-sensitive. Choose the best answer:. Does the explain output indicate that an index was used? What result does this expression give when evaluated?

One way to assure people vote at most once per posting is to use this form of update: MongoDB for NodeJs devs week3: The questions were all quite straightforward and covered in the online course material. Find the slow operation and terminate it. Notify me of new comments via email.

This assignment has fairly little code, but it’s a little more subtle than the previous assignment because you are going to be m102 homework 3.2 an array within the Mongo document. ObjectId ” dda0ee6ebae74 “” title “: Add another data m102 homework 3.2 node.

Redis would have worked fine. To confirm you are on the right track, here are some queries to run after you process the data with the correct answer shown:.

Once you have eliminated the slow operation, run on your second tab:. The questions were all quite straightforward and covered in the online course material.

Files for this homework and HW 3. Once you have eliminated the slow operation, run on your second tab: Once done with that, run homework.

M102 homework 3.2 you have it right and are ready to move on, ctrl-c terminate the shell that is still running the homework. To find answer of second question, it is necessary to find m102 homework 3.2 of documents scanned by above query. Execute following command to check if indexes are created.

[mongodb-user] Missed to submit first week homework

Add two data bearing m102 homework 3.2 plus one arbiter. What is the output? When you are done, run: First Steps Privacy M How many products have a voice limit? Instead of running it normally, you need to right-click and Run As Administrator. Based on the explain output, which of the following statements below are true? Reconfigure the replica set so that the third member can never be primary. ObjectId ” dda0ee6ebae74 “” author “: Leave a Reply Cancel reply Enter your comment here M102 homework 3.2 command prompt and start MongoDB server Download handout and save as performance.

[SERVER] University M course Homework () crashes – MongoDB

You only have two data centers available. Which of these statements is true? Let m102 homework 3.2 count m102 homework 3.2 number of students we have: For question three, check value for indexName key which gives name of index used. In this problem, ‘s oplog was effectively a “fork” and to preserve write ordering a rollback was necessary during ‘s recovery phase. For the sake of clarity, here is a document out of the posts collection from a working project that also has comments.

M102 WEEK 3

To get started, please download hw3. Letters are not case-sensitive. You will be using the same code as you downloaded for HW 3. The m102 homework 3.2 call that you are going to add will insert a new post into the posts collection.

For the sake of eliminating doubt, the permalink for the example blog post above is. What result does this expression give when evaluated? Log a warning and call it correctly. We have removed parts of the m102 homework 3.2 that uses the Node. You should have included with your homework files a “students.

MongoDB preserves the order of writes in a collection in its consistency model. Connect to the mongos with a mongo shell. Check all that apply.