M102 HOMEWORK 5.1

This method will simply verify that this simple cluster is up and running and return a result key. When you ask why, they explain that this ensures that the data will be durable in the face of the failure of either server. You would like to ensure availability of writes during server maintenance. Your secondary is now the only copy of your data, and it is not accepting writes. If a writer uses a thought of a scientist or a quotation from a book, it will be properly cited in the reference list.

Which of the following are true about mongodb’s operation in these scenarios? Wiredtiger is new storage engine, it come with following feature 1 Data compression 2 Document level locking. Note that you will need to probably change your projection to send more info through than just that first character. Once you have eliminated the slow operation, run on your second tab: MongoDB for NodeJs devs week5:

m102 homework 5.1

Which arrangement s of servers will allow you to be stay up as in, still able to elect a primary in the event of a failure of either data center but not both at once? Which arrangement s of servers will allow you to be stay up as in, still able to elect a primary in the event of a failure of either data center but not both at once? Add another data bearing node.

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M102 homework homework 5.1

MongoDB has a data type for binary data. You may also like. My first introduction to MongoDB was to sign up to university. You probably want to test this on your machine, and then copy and paste the insert query in the box below. Please insert into the m collection, the following 3 documents, using only 51 shell query please use double quotes around each key in each document in your answer: First, a server is brought down for maintenance once a month.

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Watch 1 Star 1 Fork 1 georgeOsdDev. MongoDB is “multi-master” — you can write anywhere, anytime. You may want to use this documentation page to solve this problem.

When this is done, the replica set primary steps down, and the set cannot accept writes.

M102 WEEK 5

Your wishes are our priorities. Create a new directory 4 on same path where previous three directories were created as below d: Once done with that, run homework.

m102 homework 5.1

MongoDB can help you make a difference to the business. Newer Post Older Post Home. Based on the explain output, which of the following statements below are true?

Consider the following scenario: MongoDB preserves the order of writes in a collection homeworkk its consistency model. You are concerned about robustness, however. It contains 3 documents.

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What result does this expression give when evaluated? You want to reconfigure your replica set config to exclude the primary, and allow your secondary to be elected, but you run into trouble.

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This is not the same as the Bulk operations, which were discussed .51 in this course. You want to reconfigure your replica set config to exclude the primary, and allow your secondary to be elected, but you run into trouble. Finding the most frequent author of comments M Crunching the Zipcode dataset Homework: MongoDB for Java Developers.

Check all that apply:. Accueil Rechercher Annuaire m mongodb homework answers.

m102 homework 5.1

Now, what query would you run to get hmoework the products where brand equals the string “ACME”? The data center with the primary goes down, and is expected to remain down for the foreseeable future. Connect to the mongos with a mongo shell.

Once you have eliminated the slow operation, run on your second tab: Then import into your blog database as follows: