LPI W - Web Essentials
NodeJS
Here are 15 questions for the Web Essentials Certification by Linux Professional Institute about NodeJS:
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What is Node.js?
Node.js is a JavaScript runtime environment that allows you to run JavaScript code on the server. It is a popular choice for building web applications, as it is fast and efficient.
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What are the benefits of using Node.js?
- It is fast and efficient.
- It is easy to learn and use.
- It is a popular choice for building web applications.
- It has a large community of developers.
- What are the drawbacks of using Node.js?
- It is not as mature as some other technologies.
- It is not as well-supported by some hosting providers.
- It can be difficult to debug.
- What is the difference between Node.js and other JavaScript runtime environments?
- It is a server-side environment, while others are client-side environments.
- It is asynchronous, while others are synchronous.
- It is event-driven, while others are not.
- What are the different types of Node.js applications?
- Web applications
- Mobile applications
- IoT applications
- Server applications
- What are the different components of a Node.js application?
- A package manager
- A file system
- A database
- A web server
- A user interface
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What is the package manager used in Node.js?
The package manager used in Node.js is npm. npm allows you to install and manage packages of JavaScript code.
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What is the file system used in Node.js?
The file system used in Node.js is the file system on the server. You can use the same file system that you use on your local machine.
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What is the database used in Node.js?
The database used in Node.js can be any database that supports JavaScript. Some popular choices include MongoDB, MySQL, and PostgreSQL.
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What is the web server used in Node.js?
The web server used in Node.js is typically Express.js. Express.js is a web server framework that makes it easy to build web applications.
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What is the user interface used in Node.js?
The user interface used in Node.js can be any user interface framework that supports JavaScript. Some popular choices include React, Angular, and Vue.js.
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How do you run a Node.js application?
To run a Node.js application, you first need to install Node.js on your server. Once Node.js is installed, you can run your application by running the following command:
$ node app.js
- How do you debug a Node.js application?
Another way to debug a Node.js application is to use the Node.js profiler. The Node.js profiler allows you to see where your application is spending its time.
- How do you deploy a Node.js application?
Another way to deploy a Node.js application is to use a containerization platform. A containerization platform will allow you to run your application in a container.
- What are the future plans for Node.js?
- Further development of the language and runtime
- Increased adoption by developers
- Increased support by hosting providers
- Increased use in enterprise application
Disclaimer:
The samples provided here are intended to serve as a general guide and reference for individuals preparing for the LPI Linux certifications. These samples are not meant to represent the exact questions that may appear on the actual exam. The LPI certification exams are constantly updated and revised, and the questions on each exam are carefully crafted to assess a candidate's knowledge and skills.
Therefore, while we have made every effort to ensure the accuracy and relevance of the samples provided, we cannot guarantee that they will reflect the content or difficulty level of the actual exam. Additionally, we do not endorse or have any affiliation with the Linux Professional Institute (LPI).
We strongly recommend that candidates use these samples as an additional resource for their exam preparation, in combination with other study materials and practice tests. Ultimately, success on the LPI Linux certification exams will depend on an individual's knowledge, experience, and understanding of the exam objectives.
By using these samples, you agree that neither the provider of these sample questions nor any of its affiliates or employees shall be liable for any damages arising from your use or reliance on these sample questions or any information provided herein.