MONGODB M102 HOMEWORK 3

Which of the following options will allow you to ensure that a primary is available during server maintenance, and that any writes it receives will replicate during this time? Now, what query would you run to get all the products where brand equals the string “ACME”? Second, you also want to ensure that all writes can be replicated during server maintenance. How many products have a voice limit? Most MongoDB queries involve javascript execution on the database server s. So we know we need to add a member to our deployment. To allow writes to be replicated, there needs to be a data-bearing primary with a data-bearing secondary to replicate to.

So, let’s look at the options they give us: Which of the following options will allow you to ensure that a primary is available during server maintenance, and that any writes it receives will replicate during this time? MongoDB allows you to choose the storage engine separately for each collection on your mongod. Add two data bearing members plus one arbiter. Not that it matters, but Option 3 doesn’t satisfy the first requirement either. They also explain that should they use a readPreference of “primaryPreferred”, that the application can read from the one remaining server during server maintenance.

Based on the explain output, which of the following statements below are true? Add another data bearing node 5.

Reconfigure the replica set so that the third member can never be primary. MongoDB allows you to choose the mongobd engine separately for each collection on your mongod. MongoDB preserves the order of writes in a collection in its consistency model. When done, run homework.

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mongodb m102 homework 3

MongoDB allows you to choose the storage engine separately for each collection on your mongod. Thanks to share this useful informative blog about MongoDB Training. In this problem, ‘s oplog was effectively a “fork” monngodb to preserve write ordering a rollback was necessary during ‘s recovery phase. 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?

Daily MongoDB Blog: MongoDB Course M MongoDB for DBAs Homework

However, I didn’t have any problems related to the version. Now, what query would you run to get all the products where brand equals the string “ACME”?

When you are done, run: It contains ,102 documents. Check all that apply. When you ask why, they explain that this ensures that the data will be durable in the face of the failure of either server. One way to assure people vote at most once per posting is to use this form of update: Once you have eliminated the slow operation, run on mnogodb second tab: Teju Teju 30 October at Now, what query would you run to get all the products where brand equals the string “ACME”?

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Once you have two secondary servers, both of which have sync’d with the primary and are caught up, run on your primary: To allow mongofb to be replicated, there needs to be a data-bearing primary with a data-bearing secondary to replicate to. My first introduction to MongoDB was to sign up to university.

Once you have it right and are ready to move on, ctrl-c monhodb the shell that is still running the homework. Thanks for sharing nice information.

Add another data bearing node 5. They also 1m02 that should they use a readPreference of “primaryPreferred”, that the application can read from the one remaining server during server maintenance.

mongodb m102 homework 3

When you are done, run: Which of these statements is true? To allow writes to be replicated, there needs to be a data-bearing primary with a data-bearing secondary to replicate to.

Add an arbiter 2. Our main focus is customer satisfaction.

MongodbChamps: M MongoDB for DBAs – Homework

Therefore, we need to add at least one data-bearing member to our current deployment to satisfy that requirement. How many products have a voice homeworo Check all that apply.

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