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Question 1/101/10
Best practices and coding conventions
Best practices and coding conventions
Best practices and coding conventions
Which of the following is a best practice for coding conventions in MERN stack development in India?
Select the answer:Select the answer
1 correct answer
A.
Using camel case for variable and function names
B.
Using snake case for variable and function names
C.
Using kebab case for variable and function names
D.
Using Pascal case for variable and function names
Using camel case for variable and function names is a common and widely accepted coding convention in MERN stack development in India. It helps improve code readability and consistency.
Right Answer: A
Quiz
Question 2/102/10
Deployment and scaling
Deployment and scaling
Deployment and scaling
What is the purpose of using load balancers in the deployment and scaling process?
Select the answer:Select the answer
1 correct answer
A.
To evenly distribute incoming network traffic across multiple servers.
B.
To provide secure communication between client and server.
C.
To automatically scale resources based on demand.
D.
To monitor the performance of deployed applications.
Load balancers help distribute incoming network traffic across multiple servers, ensuring that no single server becomes overwhelmed with requests and improving the overall performance and reliability of the application.
Right Answer: A
Quiz
Question 3/103/10
Express.js
Express.js
Express.js
Which of the following is true about middleware in Express.js?
Select the answer:Select the answer
1 correct answer
A.
It is used for creating HTML templates
B.
It is used for encrypting data sent between the client and server
C.
It is used for parsing and modifying incoming HTTP requests
D.
It is used for styling web pages with CSS
Middleware in Express.js is a function that can access the request and response objects, and the next middleware function in the application's request-response cycle. It can be used for tasks such as parsing incoming data, validating requests, and modifying responses before they are sent back to the client.
Right Answer: C
Quiz
Question 4/104/10
General MERN Stack
General MERN Stack
General MERN Stack
What is MERN Stack?
Select the answer:Select the answer
1 correct answer
A.
A stack of rocks found in the mountains of India
B.
A combination of technologies used to develop web applications, including MongoDB, Express.js, React.js, and Node.js
C.
A popular dish in Indian cuisine made with lentils and spices
D.
A type of traditional dance performed in India
The MERN Stack is a combination of technologies used to develop web applications. It consists of MongoDB, a NoSQL database; Express.js, a web application framework; React.js, a JavaScript library for building user interfaces; and Node.js, a JavaScript runtime environment. These technologies work together to provide a full-stack development solution.
Right Answer: B
Quiz
Question 5/105/10
MongoDB
MongoDB
MongoDB
Which of the following data model does MongoDB use?
Select the answer:Select the answer
1 correct answer
A.
Relational data model
B.
Hierarchical data model
C.
Document data model
D.
Object-oriented data model
MongoDB uses a document data model, where data is stored in flexible, JSON-like documents with dynamic schemas.
Right Answer: C
Quiz
Question 6/106/10
Node.js
Node.js
Node.js
What is Node.js?
Select the answer:Select the answer
1 correct answer
A.
A JavaScript runtime built on Chrome's V8 JavaScript engine
B.
A relational database management system
C.
A front-end framework for building user interfaces
D.
A programming language used for developing mobile applications
Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine. It allows developers to run JavaScript code outside of a web browser.
Right Answer: A
Quiz
Question 7/107/10
React.js
React.js
React.js
What is React.js?
Select the answer:Select the answer
1 correct answer
A.
A JavaScript library for building user interfaces
B.
A programming language used for backend development
C.
A database management system
D.
A framework for mobile app development
React.js is a JavaScript library used for building user interfaces. It allows developers to create reusable UI components and efficiently update the UI based on changes in data. React.js follows a component-based architecture and uses a virtual DOM for efficient rendering.
Right Answer: A
Quiz
Question 8/108/10
Testing and debugging
Testing and debugging
Testing and debugging
What is unit testing?
Select the answer:Select the answer
1 correct answer
A.
Testing each module separately
B.
Testing the entire system as a whole
C.
Testing the user interface only
D.
None of the above
Unit testing involves testing each module or component of a software application separately to ensure that it functions correctly.
Right Answer: A
Quiz
Question 9/109/10
Deployment and scaling
Deployment and scaling
Deployment and scaling
What is a common Kubernetes deployment strategy that ensures zero downtime during updates by gradually replacing old instances with new ones?
Select the answer:Select the answer
1 correct answer
A.
Blue-green deployment
B.
Canary deployment
C.
Rolling deployment
D.
Recreate deployment
Rolling deployment involves incrementally updating instances, allowing for seamless transitions and minimizing disruptions in the application's availability.
Right Answer: C
Quiz
Question 10/1010/10
Best practices and coding conventions
Best practices and coding conventions
Best practices and coding conventions
Which of the following is a recommended best practice for organizing files and folders in a MERN stack project in India?
Select the answer:Select the answer
1 correct answer
A.
Placing all backend files in a separate "backend" folder
B.
Placing all frontend files in a separate "frontend" folder
C.
Placing all server-related files in a separate "server" folder
D.
Placing all client-related files in a separate "client" folder
Placing all client-related files in a separate "client" folder is a recommended best practice in MERN stack development in India. This helps separate frontend and backend code, making it easier to manage and maintain the project.
Mern Stack Interview Questions Practice test unlocks all online simulator questions
Thank you for choosing the free version of the Mern Stack Interview Questions practice test! Further deepen your knowledge on Technical Interview Questions Simulator; by unlocking the full version of our Mern Stack Interview Questions Simulator you will be able to take tests with over 466 constantly updated questions and easily pass your exam. 98% of people pass the exam in the first attempt after preparing with our 466 questions.
What to expect from our Mern Stack Interview Questions practice tests and how to prepare for any exam?
The Mern Stack Interview Questions Simulator Practice Tests are part of the Technical Interview Questions Database and are the best way to prepare for any Mern Stack Interview Questions exam. The Mern Stack Interview Questions practice tests consist of 466 questions divided by 8 topics and are written by experts to help you and prepare you to pass the exam on the first attempt. The Mern Stack Interview Questions database includes questions from previous and other exams, which means you will be able to practice simulating past and future questions. Preparation with Mern Stack Interview Questions Simulator will also give you an idea of the time it will take to complete each section of the Mern Stack Interview Questions practice test . It is important to note that the Mern Stack Interview Questions Simulator does not replace the classic Mern Stack Interview Questions study guides; however, the Simulator provides valuable insights into what to expect and how much work needs to be done to prepare for the Mern Stack Interview Questions exam.
Mern Stack Interview Questions Practice test therefore represents an excellent tool to prepare for the actual exam together with our Technical Interview Questions practice test . Our Mern Stack Interview Questions Simulator will help you assess your level of preparation and understand your strengths and weaknesses. Below you can read all the quizzes you will find in our Mern Stack Interview Questions Simulator and how our unique Mern Stack Interview Questions Database made up of real questions:
Info quiz:
Quiz name:Mern Stack Interview Questions
Total number of questions:466
Number of questions for the test:100
Pass score:70%
Number of topics:8 Topics
Study topics:Number of questions:
Best practices and coding conventions:70 Questions
Deployment and scaling:71 Questions
Express.js:63 Questions
General MERN Stack:65 Questions
MongoDB:8 Questions
Node.js:64 Questions
React.js:65 Questions
Testing and debugging:60 Questions
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