Prepare Interview

Mock Exams

Make Homepage

Bookmark this page

Subscribe Email Address
Withoutbook LIVE Mock Interviews
The Best LIVE Mock Interview - You should go through before Interview

Freshers / Beginner level questions & answers

Ques 1. What is Next.js?

Next.js is a React-based web framework that enables functionality such as server-side rendering and generating static websites for React-based web applications.

Is it helpful? Add Comment View Comments
 

Ques 2. What is the purpose of the 'pages' directory in a Next.js project?

The 'pages' directory in a Next.js project contains React components that represent the pages of the application. Each file in this directory becomes a route in the application.

Is it helpful? Add Comment View Comments
 

Ques 3. What is the purpose of the '_app.js' file in Next.js?

The '_app.js' file in Next.js is used to customize the default 'App' component. It is commonly used for persisting layout between pages.

Is it helpful? Add Comment View Comments
 

Ques 4. Explain the purpose of the 'public' directory in Next.js.

The 'public' directory in Next.js is used for serving static assets like images, fonts, and other files. Contents of this directory are served at the root level of the application.

Is it helpful? Add Comment View Comments
 

Ques 5. Explain the purpose of the 'Link' component in Next.js.

The 'Link' component in Next.js is used for client-side navigation between pages, providing a smoother user experience compared to traditional anchor tags.

Is it helpful? Add Comment View Comments
 

Ques 6. What is the purpose of the 'next/head' component in Next.js?

The 'next/head' component is used to modify the head of the document, allowing you to add custom elements such as meta tags, title, and stylesheets.

Is it helpful? Add Comment View Comments
 

Ques 7. What is the purpose of the '404.js' file in the 'pages' directory?

The '404.js' file in the 'pages' directory is a custom 404 error page. It allows you to define a React component that will be displayed when a user accesses a non-existent route.

Is it helpful? Add Comment View Comments
 

Ques 8. Explain the concept of 'Global CSS' in Next.js.

Global CSS in Next.js refers to styles that are applied globally across all components. It can be achieved by importing a CSS file into the 'pages/_app.js' file.

Is it helpful? Add Comment View Comments
 

Ques 9. What is the purpose of the 'ErrorBoundary' component in Next.js?

The 'ErrorBoundary' component in Next.js is used to catch JavaScript errors anywhere in the component tree and log those errors, preventing the entire application from crashing.

Is it helpful? Add Comment View Comments
 

Intermediate / 1 to 5 years experienced level questions & answers

Ques 10. Explain server-side rendering (SSR) in Next.js.

Server-side rendering in Next.js refers to the process of rendering pages on the server rather than in the browser, improving performance and SEO.

Is it helpful? Add Comment View Comments
 

Ques 11. How can you fetch data in Next.js?

Data fetching in Next.js can be done using functions like 'getStaticProps' for static data or 'getServerSideProps' for server-side rendered data.

Is it helpful? Add Comment View Comments
 

Ques 12. Explain the purpose of 'getInitialProps' in Next.js.

'getInitialProps' is a lifecycle method in Next.js that allows you to fetch data on the server and pass it as props to your page. It is commonly used in older versions of Next.js.

Is it helpful? Add Comment View Comments
 

Ques 13. What is the difference between 'getServerSideProps' and 'getStaticProps'?

'getServerSideProps' fetches data on every request, while 'getStaticProps' fetches data at build time. 'getStaticProps' is suitable for static content that does not change often.

Is it helpful? Add Comment View Comments
 

Ques 14. How can you add custom headers to a Next.js response?

You can add custom headers to a Next.js response using the 'res' object in 'getServerSideProps' or by using a custom server.

Is it helpful? Add Comment View Comments
 

Ques 15. How can you use environment variables in a Next.js project?

You can use environment variables in Next.js by prefixing them with 'NEXT_PUBLIC_' and accessing them in your code using 'process.env.NEXT_PUBLIC_VARIABLE_NAME'.

Is it helpful? Add Comment View Comments
 

Ques 16. What is the purpose of the 'next/image' component in Next.js?

The 'next/image' component is used for optimized image loading, providing features like lazy loading, automatic resizing, and support for different image formats.

Is it helpful? Add Comment View Comments
 

Ques 17. What is the purpose of 'API routes' in Next.js?

API routes in Next.js allow you to build serverless functions that handle backend logic. These routes are defined in the 'pages/api' directory.

Is it helpful? Add Comment View Comments
 

Ques 18. Explain the concept of 'Automatic Static Optimization' in Next.js.

Automatic Static Optimization is a feature in Next.js that automatically optimizes the delivery of static assets by serving them from a CDN and generating HTML at build time.

Is it helpful? Add Comment View Comments
 

Ques 19. How can you deploy a Next.js application?

Next.js applications can be deployed to various platforms, including Vercel, Netlify, and custom servers. These platforms often support automatic deployments based on your project repository.

Is it helpful? Add Comment View Comments
 

Ques 20. Explain the concept of 'Shallow Routing' in Next.js.

Shallow Routing in Next.js allows you to change the URL without running data fetching methods again. It can be achieved using the 'shallow' option in the 'Link' component.

Is it helpful? Add Comment View Comments
 

Ques 21. How can you implement code splitting in a Next.js application?

Code splitting in Next.js is automatically handled by the framework. Each page becomes a separate chunk, and dynamic imports can be used to further split code based on user interactions.

Is it helpful? Add Comment View Comments
 

Ques 22. What is the 'SWR' library, and how can it be used in a Next.js project?

'SWR' (Stale-While-Revalidate) is a React Hooks library for data fetching. It can be used in a Next.js project to fetch and cache data, providing a good developer experience and efficient rendering.

Is it helpful? Add Comment View Comments
 

Ques 23. Explain the purpose of the 'publicRuntimeConfig' object in Next.js.

The 'publicRuntimeConfig' object in Next.js allows you to expose environment variables to the client-side code. It is a way to share configuration between server and client.

Is it helpful? Add Comment View Comments
 

Ques 24. How can you set up internationalization (i18n) in a Next.js project?

Internationalization in Next.js can be achieved using libraries like 'next-i18next' or 'react-intl'. These libraries provide tools for translating content and handling language-specific logic.

Is it helpful? Add Comment View Comments
 

Experienced / Expert level questions & answers

Ques 25. Explain how to handle dynamic routes in Next.js.

Dynamic routes in Next.js are defined using square brackets in the file name, like '[id].js'. You can use the 'getStaticPaths' and 'getStaticProps' functions to fetch data for dynamic routes.

Is it helpful? Add Comment View Comments
 

Ques 26. Explain the concept of 'incremental static regeneration' (ISR) in Next.js.

Incremental Static Regeneration is a feature in Next.js that allows you to update static content without rebuilding the entire site. It enables dynamic content updates at runtime.

Is it helpful? Add Comment View Comments
 

Ques 27. How can you handle authentication in a Next.js application?

Authentication in Next.js can be handled using various methods such as third-party providers like Auth0, custom authentication APIs, or middleware like 'next-auth'.

Is it helpful? Add Comment View Comments
 

Ques 28. How can you configure a custom server in Next.js?

You can configure a custom server in Next.js by creating a 'server.js' file in your project. However, using a custom server is discouraged in most cases, and it may bypass some optimizations.

Is it helpful? Add Comment View Comments
 

Ques 29. Explain the purpose of the 'getStaticPaths' function in dynamic routes.

'getStaticPaths' is used in dynamic routes to specify which paths should be pre-rendered at build time. It returns an array of possible values for the dynamic segments in the route.

Is it helpful? Add Comment View Comments
 

Ques 30. Explain the concept of 'API middleware' in Next.js.

API middleware in Next.js allows you to intercept and modify API requests and responses. It can be useful for tasks like authentication checks or request logging.

Is it helpful? Add Comment View Comments
 

Most helpful rated by users:

Related interview subjects

PowerShell interview questions and answers - Total 27 questions
Terraform interview questions and answers - Total 30 questions
JCL interview questions and answers - Total 20 questions
JavaScript interview questions and answers - Total 59 questions
Ajax interview questions and answers - Total 58 questions
Express.js interview questions and answers - Total 30 questions
Ansible interview questions and answers - Total 30 questions
ES6 interview questions and answers - Total 30 questions
Electron.js interview questions and answers - Total 24 questions
NodeJS interview questions and answers - Total 30 questions
RxJS interview questions and answers - Total 29 questions
ExtJS interview questions and answers - Total 50 questions
jQuery interview questions and answers - Total 22 questions
Vue.js interview questions and answers - Total 30 questions
Svelte.js interview questions and answers - Total 30 questions
Shell Scripting interview questions and answers - Total 50 questions
Next.js interview questions and answers - Total 30 questions
Knockout JS interview questions and answers - Total 25 questions
TypeScript interview questions and answers - Total 38 questions

All interview subjects

ASP interview questions and answers - Total 82 questions
LINQ interview questions and answers - Total 20 questions
C# interview questions and answers - Total 41 questions
ASP .NET interview questions and answers - Total 31 questions
Microsoft .NET interview questions and answers - Total 60 questions
Artificial Intelligence (AI) interview questions and answers - Total 47 questions
Machine Learning interview questions and answers - Total 30 questions
Google Cloud AI interview questions and answers - Total 30 questions
IBM Watson interview questions and answers - Total 30 questions
ChatGPT interview questions and answers - Total 20 questions
NLP interview questions and answers - Total 30 questions
OpenCV interview questions and answers - Total 36 questions
Amazon SageMaker interview questions and answers - Total 30 questions
TensorFlow interview questions and answers - Total 30 questions
Hugging Face interview questions and answers - Total 30 questions
COBOL interview questions and answers - Total 50 questions
R Language interview questions and answers - Total 30 questions
Python Coding interview questions and answers - Total 20 questions
Scala interview questions and answers - Total 48 questions
Swift interview questions and answers - Total 49 questions
Golang interview questions and answers - Total 30 questions
Embedded C interview questions and answers - Total 30 questions
C++ interview questions and answers - Total 142 questions
VBA interview questions and answers - Total 30 questions
CCNA interview questions and answers - Total 40 questions
ServiceNow interview questions and answers - Total 30 questions
Snowflake interview questions and answers - Total 30 questions
Oracle APEX interview questions and answers - Total 23 questions
AWS interview questions and answers - Total 87 questions
Microsoft Azure interview questions and answers - Total 35 questions
Azure Data Factory interview questions and answers - Total 30 questions
OpenStack interview questions and answers - Total 30 questions
PIPEDA interview questions and answers - Total 20 questions
CCPA interview questions and answers - Total 20 questions
GDPR interview questions and answers - Total 30 questions
HITRUST interview questions and answers - Total 20 questions
LGPD interview questions and answers - Total 20 questions
PDPA interview questions and answers - Total 20 questions
OSHA interview questions and answers - Total 20 questions
HIPPA interview questions and answers - Total 20 questions
PHIPA interview questions and answers - Total 20 questions
FERPA interview questions and answers - Total 20 questions
DPDP interview questions and answers - Total 30 questions
Operating System interview questions and answers - Total 22 questions
MS Word interview questions and answers - Total 50 questions
Tips and Tricks interview questions and answers - Total 30 questions
PoowerPoint interview questions and answers - Total 50 questions
Data Structures interview questions and answers - Total 49 questions
Microsoft Excel interview questions and answers - Total 37 questions
Computer Networking interview questions and answers - Total 65 questions
Computer Basics interview questions and answers - Total 62 questions
Computer Science interview questions and answers - Total 50 questions
Python Pandas interview questions and answers - Total 48 questions
Python Matplotlib interview questions and answers - Total 30 questions
Django interview questions and answers - Total 50 questions
Pandas interview questions and answers - Total 30 questions
Deep Learning interview questions and answers - Total 29 questions
Flask interview questions and answers - Total 40 questions
PySpark interview questions and answers - Total 30 questions
PyTorch interview questions and answers - Total 25 questions
Data Science interview questions and answers - Total 23 questions
SciPy interview questions and answers - Total 30 questions
Generative AI interview questions and answers - Total 30 questions
NumPy interview questions and answers - Total 30 questions
Python interview questions and answers - Total 106 questions
Elasticsearch interview questions and answers - Total 61 questions
Data Mining interview questions and answers - Total 30 questions
Oracle interview questions and answers - Total 34 questions
MongoDB interview questions and answers - Total 27 questions
AWS DynamoDB interview questions and answers - Total 46 questions
Entity Framework interview questions and answers - Total 46 questions
Redis Cache interview questions and answers - Total 20 questions
MySQL interview questions and answers - Total 108 questions
Data Modeling interview questions and answers - Total 30 questions
DBMS interview questions and answers - Total 73 questions
MariaDB interview questions and answers - Total 40 questions
Apache Hive interview questions and answers - Total 30 questions
PostgreSQL interview questions and answers - Total 30 questions
SSIS interview questions and answers - Total 30 questions
Teradata interview questions and answers - Total 20 questions
SQL Query interview questions and answers - Total 70 questions
SQLite interview questions and answers - Total 53 questions
Cassandra interview questions and answers - Total 25 questions
Neo4j interview questions and answers - Total 44 questions
MSSQL interview questions and answers - Total 50 questions
OrientDB interview questions and answers - Total 46 questions
Data Warehouse interview questions and answers - Total 20 questions
SQL interview questions and answers - Total 152 questions
IBM DB2 interview questions and answers - Total 40 questions
VLSI interview questions and answers - Total 30 questions
Software Engineering interview questions and answers - Total 27 questions
MATLAB interview questions and answers - Total 25 questions
Digital Electronics interview questions and answers - Total 38 questions
Civil Engineering interview questions and answers - Total 30 questions
Electrical Machines interview questions and answers - Total 29 questions
Data Engineer interview questions and answers - Total 30 questions
AutoCAD interview questions and answers - Total 30 questions
Robotics interview questions and answers - Total 28 questions
Power System interview questions and answers - Total 28 questions
Electrical Engineering interview questions and answers - Total 30 questions
Verilog interview questions and answers - Total 30 questions
TIBCO interview questions and answers - Total 30 questions
Informatica interview questions and answers - Total 48 questions
Oracle CXUnity interview questions and answers - Total 29 questions
Web Services interview questions and answers - Total 10 questions
Salesforce Lightning interview questions and answers - Total 30 questions
IBM Integration Bus interview questions and answers - Total 30 questions
Power BI interview questions and answers - Total 24 questions
OIC interview questions and answers - Total 30 questions
Dell Boomi interview questions and answers - Total 30 questions
Web API interview questions and answers - Total 31 questions
Salesforce interview questions and answers - Total 57 questions
IBM DataStage interview questions and answers - Total 20 questions
Talend interview questions and answers - Total 34 questions
Java Exception Handling interview questions and answers - Total 30 questions
Spring Boot interview questions and answers - Total 50 questions
Servlets interview questions and answers - Total 34 questions
Kotlin interview questions and answers - Total 30 questions
EJB interview questions and answers - Total 80 questions
Java Beans interview questions and answers - Total 57 questions
Java 15 interview questions and answers - Total 16 questions
Apache Wicket interview questions and answers - Total 26 questions
Core Java interview questions and answers - Total 306 questions
Java Multithreading interview questions and answers - Total 30 questions
Log4j interview questions and answers - Total 35 questions
JBoss interview questions and answers - Total 14 questions
Java Mail interview questions and answers - Total 27 questions
Java Applet interview questions and answers - Total 29 questions
Google Gson interview questions and answers - Total 8 questions
Java 21 interview questions and answers - Total 21 questions
Apache Camel interview questions and answers - Total 20 questions
Struts interview questions and answers - Total 84 questions
RMI interview questions and answers - Total 31 questions
Java Support interview questions and answers - Total 30 questions
JAXB interview questions and answers - Total 18 questions
Apache Tapestry interview questions and answers - Total 9 questions
JSP interview questions and answers - Total 49 questions
Java Concurrency interview questions and answers - Total 30 questions
J2EE interview questions and answers - Total 25 questions
JUnit interview questions and answers - Total 24 questions
Java OOPs interview questions and answers - Total 30 questions
Java 11 interview questions and answers - Total 24 questions
JDBC interview questions and answers - Total 27 questions
Java Garbage Collection interview questions and answers - Total 30 questions
Java Design Patterns interview questions and answers - Total 15 questions
Spring Framework interview questions and answers - Total 53 questions
Java Swing interview questions and answers - Total 27 questions
JPA interview questions and answers - Total 41 questions
Java 8 interview questions and answers - Total 30 questions
Hibernate interview questions and answers - Total 52 questions
JMS interview questions and answers - Total 64 questions
JSF interview questions and answers - Total 24 questions
Java 17 interview questions and answers - Total 20 questions
Tally interview questions and answers - Total 30 questions
Pega interview questions and answers - Total 30 questions
ITIL interview questions and answers - Total 25 questions
Finance interview questions and answers - Total 30 questions
JIRA interview questions and answers - Total 30 questions
SAP MM interview questions and answers - Total 30 questions
SAP ABAP interview questions and answers - Total 24 questions
SCCM interview questions and answers - Total 30 questions
iOS interview questions and answers - Total 52 questions
Ionic interview questions and answers - Total 32 questions
Android interview questions and answers - Total 14 questions
Mobile Computing interview questions and answers - Total 20 questions
Xamarin interview questions and answers - Total 31 questions
GIT interview questions and answers - Total 30 questions
Blue Prism interview questions and answers - Total 20 questions
Memcached interview questions and answers - Total 28 questions
SSB interview questions and answers - Total 30 questions
Algorithm interview questions and answers - Total 50 questions
Business Analyst interview questions and answers - Total 40 questions
Splunk interview questions and answers - Total 30 questions
DevOps interview questions and answers - Total 45 questions
Accounting interview questions and answers - Total 30 questions
OSPF interview questions and answers - Total 30 questions
Sqoop interview questions and answers - Total 30 questions
JSON interview questions and answers - Total 16 questions
Scrum Master interview questions and answers - Total 30 questions
Accounts Payable interview questions and answers - Total 30 questions
Computer Graphics interview questions and answers - Total 25 questions
IoT interview questions and answers - Total 30 questions
Insurance interview questions and answers - Total 30 questions
Bitcoin interview questions and answers - Total 30 questions
Active Directory interview questions and answers - Total 30 questions
Laravel interview questions and answers - Total 30 questions
XML interview questions and answers - Total 25 questions
GraphQL interview questions and answers - Total 32 questions
Microservices interview questions and answers - Total 30 questions
Apache Kafka interview questions and answers - Total 38 questions
Tableau interview questions and answers - Total 20 questions
Adobe AEM interview questions and answers - Total 50 questions
Kubernetes interview questions and answers - Total 30 questions
OOPs interview questions and answers - Total 30 questions
Fashion Designer interview questions and answers - Total 20 questions
Desktop Support interview questions and answers - Total 30 questions
IAS interview questions and answers - Total 56 questions
PHP OOPs interview questions and answers - Total 30 questions
Yoga Teachers Training interview questions and answers - Total 30 questions
Nursing interview questions and answers - Total 40 questions
Linked List interview questions and answers - Total 15 questions
Dynamic Programming interview questions and answers - Total 30 questions
SharePoint interview questions and answers - Total 28 questions
CICS interview questions and answers - Total 30 questions
School Teachers interview questions and answers - Total 25 questions
Language in C interview questions and answers - Total 80 questions
Behavioral interview questions and answers - Total 29 questions
Full-Stack Developer interview questions and answers - Total 60 questions
Statistics interview questions and answers - Total 30 questions
Digital Marketing interview questions and answers - Total 40 questions
Apache Spark interview questions and answers - Total 24 questions
System Design interview questions and answers - Total 30 questions
VISA interview questions and answers - Total 30 questions
IIS interview questions and answers - Total 30 questions
SEO interview questions and answers - Total 51 questions
Google Analytics interview questions and answers - Total 30 questions
Cloud Computing interview questions and answers - Total 42 questions
BPO interview questions and answers - Total 48 questions
ANT interview questions and answers - Total 10 questions
Agile Methodology interview questions and answers - Total 30 questions
HR Questions interview questions and answers - Total 49 questions
REST API interview questions and answers - Total 52 questions
Content Writer interview questions and answers - Total 30 questions
SAS interview questions and answers - Total 24 questions
Control System interview questions and answers - Total 28 questions
Blockchain interview questions and answers - Total 29 questions
Technical Support interview questions and answers - Total 30 questions
Mainframe interview questions and answers - Total 20 questions
Hadoop interview questions and answers - Total 40 questions
Banking interview questions and answers - Total 20 questions
Checkpoint interview questions and answers - Total 20 questions
Sales interview questions and answers - Total 30 questions
Nature interview questions and answers - Total 20 questions
Chemistry interview questions and answers - Total 50 questions
Docker interview questions and answers - Total 30 questions
College Teachers interview questions and answers - Total 30 questions
SDLC interview questions and answers - Total 75 questions
Cryptography interview questions and answers - Total 40 questions
RPA interview questions and answers - Total 26 questions
Interview Tips interview questions and answers - Total 30 questions
PowerShell interview questions and answers - Total 27 questions
Terraform interview questions and answers - Total 30 questions
JCL interview questions and answers - Total 20 questions
JavaScript interview questions and answers - Total 59 questions
Ajax interview questions and answers - Total 58 questions
Express.js interview questions and answers - Total 30 questions
Ansible interview questions and answers - Total 30 questions
ES6 interview questions and answers - Total 30 questions
Electron.js interview questions and answers - Total 24 questions
NodeJS interview questions and answers - Total 30 questions
RxJS interview questions and answers - Total 29 questions
ExtJS interview questions and answers - Total 50 questions
jQuery interview questions and answers - Total 22 questions
Vue.js interview questions and answers - Total 30 questions
Svelte.js interview questions and answers - Total 30 questions
Shell Scripting interview questions and answers - Total 50 questions
Next.js interview questions and answers - Total 30 questions
Knockout JS interview questions and answers - Total 25 questions
TypeScript interview questions and answers - Total 38 questions
Ethical Hacking interview questions and answers - Total 40 questions
Cyber Security interview questions and answers - Total 50 questions
PII interview questions and answers - Total 30 questions
Data Protection Act interview questions and answers - Total 20 questions
BGP interview questions and answers - Total 30 questions
Tomcat interview questions and answers - Total 16 questions
Glassfish interview questions and answers - Total 8 questions
Ubuntu interview questions and answers - Total 30 questions
Linux interview questions and answers - Total 43 questions
Unix interview questions and answers - Total 105 questions
Weblogic interview questions and answers - Total 30 questions
ETL Testing interview questions and answers - Total 20 questions
Cucumber interview questions and answers - Total 30 questions
QTP interview questions and answers - Total 44 questions
TestNG interview questions and answers - Total 38 questions
Postman interview questions and answers - Total 30 questions
SDET interview questions and answers - Total 30 questions
Quality Assurance interview questions and answers - Total 56 questions
Selenium interview questions and answers - Total 40 questions
Kali Linux interview questions and answers - Total 29 questions
Mobile Testing interview questions and answers - Total 30 questions
UiPath interview questions and answers - Total 38 questions
API Testing interview questions and answers - Total 30 questions
Appium interview questions and answers - Total 30 questions
GWT interview questions and answers - Total 27 questions
Symfony interview questions and answers - Total 30 questions
Ruby On Rails interview questions and answers - Total 74 questions
CSS interview questions and answers - Total 74 questions
Yii interview questions and answers - Total 30 questions
Angular interview questions and answers - Total 50 questions
PHP interview questions and answers - Total 27 questions
Oracle JET(OJET) interview questions and answers - Total 54 questions
Frontend Developer interview questions and answers - Total 30 questions
Zend Framework interview questions and answers - Total 24 questions
RichFaces interview questions and answers - Total 26 questions
HTML interview questions and answers - Total 27 questions
Flutter interview questions and answers - Total 25 questions
CakePHP interview questions and answers - Total 30 questions
React interview questions and answers - Total 40 questions
React Native interview questions and answers - Total 26 questions
Angular JS interview questions and answers - Total 21 questions
Web Developer interview questions and answers - Total 50 questions
Angular 8 interview questions and answers - Total 32 questions
Dojo interview questions and answers - Total 23 questions
©2024 WithoutBook