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MongoDB and YCSB Quiz

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Questions and Answers

True or false: MongoDB documents can only be modified before they are created.

False

True or false: MongoDB documents are similar to JSON objects.

True

What is MongoDB?

A relational database

A non-relational database (correct)

A key-value store

A memory management issue

What is MongoDB most commonly used for?

Storing short messages from many customers Signup and view all the answers

What is YCSB?

A framework for benchmarking key-value stores Signup and view all the answers

True or false: MongoDB is well-suited for applications that require large amounts of data.

False Signup and view all the answers

What is YCSB?

A framework for benchmarking key-value stores Signup and view all the answers

True or false: YCSB is a framework that is used to benchmark MongoDB databases.

True Signup and view all the answers

What is one way to avoid NUMA issues?

Running the YCSB client on a separate server Signup and view all the answers

What is NUMA?

A memory management issue Signup and view all the answers

True or false: MongoDB is a good choice for applications that require long message data.

False Signup and view all the answers

True or false: NUMA can be avoided by running multiple YCSB clients on a single server.

False Signup and view all the answers

What is the best way to avoid NUMA issues?

Run the YCSB client on a separate server Signup and view all the answers

True or false: NUMA can cause performance issues on a server.

True Signup and view all the answers

When is running multi-instance necessary?

When a single instance of MongoDB is not fully utilizing all the server resources Signup and view all the answers

True or false: It is necessary to run multi-instance to fully utilize server resources when running MongoDB.

False Signup and view all the answers

Study Notes

MongoDB is a popular, non-relational database that is well-suited for applications that need to store short message data accumulated over time from many customers.
MongoDB documents are similar to JSON objects, and they can be easily modified after they are created.
MongoDB is widely adopted by internet companies, especially for social applications scenarios.
MongoDB is well-suited for applications that need to store short message data accumulated over time from many customers.
MongoDB is a document-oriented database that is popular for its scalability and ease of use.
YCSB is a framework that makes it easy to benchmark different key-value stores.
MongoDB is a good choice for scalability and ease of use, and can be benchmarked with YCSB.
MongoDB is a good choice for large scale applications.
NUMA is a memory management issue that can cause performance issues on a server.
To avoid NUMA issues, it is important to run the YCSB client on a separate server.
Another option is to use a VM or Container to run multiple YCSB clients on another server.
Running multi-instance may be necessary in cases where a single instance of MongoDB does not fully utilize all the server resources.

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Description

Test your knowledge about MongoDB, a widely adopted non-relational database for applications dealing with short message data. This quiz also covers YCSB, a benchmarking framework for key-value stores, and NUMA issues related to server performance.