MySQL PostgreSQL with Express MCQ | Express.js SQL Databases Multiple Choice Questions

Direction: Choose the correct option

Which npm package is commonly used to connect to MySQL from Express?

A. sequelize

B. mysql2

C. pg

D. mongoose

Direction: Choose the correct option

What is Sequelize?

A. A Promise-based ORM for SQL databases

B. A template engine

C. A testing framework

D. An ODM for MongoDB

Direction: Choose the correct option

How do you define a model in Sequelize?

A. Sequelize.createModel('User', ...)

B. sequelize.define('User' { attributes })

C. new Sequelize.Model('User', ...)

D. Model.define('User', ...)

Direction: Choose the correct option

What does User.findAll() return in Sequelize?

A. A Promise that resolves to an array of User instances

B. An array of raw data

C. A boolean

D. A cursor

Direction: Choose the correct option

Which method is used to establish a connection pool in Sequelize?

A. You use sequelize.connect()

B. You need to call sequelize.pool()

C. It's done automatically when instantiating Sequelize

D. You configure it in the model

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