Full Stack Development MCQs

Which of the following is true about frontend frameworks?

a) React uses virtual DOM

b) Angular uses TypeScript

c) Vue is lightweight and flexible

d) All of the above

View Answer

Correct answer: D — All of the above
In React, which hook is used for managing state?

a) useState

b) useEffect

c) useContext

d) useReducer

View Answer

Correct answer: A — useState
What will be printed?

1 System.out.println("EduinqFullStack".substring(0,7));

a) EduinqF

b) Eduinq

c) FullStack

d) Compilation error

View Answer

Correct answer: B — Eduinq
Which of the following is true about backend APIs?

a) REST uses HTTP methods

b) GraphQL allows flexible queries

c) SOAP uses XML messaging

d) All of the above

View Answer

Correct answer: D — All of the above
Which HTTP method is idempotent in REST?

a) POST

b) PUT

c) DELETE

d) PATCH

View Answer

Correct answer: B — PUT
Which of the following is true about integration in full stack apps?

a) Frontend communicates with backend APIs

b) Backend connects to databases

c) Middleware handles authentication

d) All of the above

View Answer

Correct answer: D — All of the above
Which of the following is true about deployment pipelines?

a) Automate build and release

b) Use CI/CD tools like Jenkins

c) Support rollback strategies

d) All of the above

View Answer

Correct answer: D — All of the above
What will be printed?

1 System.out.println("Stack".toUpperCase());

a) STACK

b) Stack

c) Compilation error

d) Runtime exception

View Answer

Correct answer: A — STACK
Which of the following is true about React components?

a) Functional components use hooks

b) Class components use lifecycle methods

c) Components can be nested

d) All of the above

View Answer

Correct answer: D — All of the above
Which of the following is true about Node.js?

a) Built on V8 engine

b) Supports non blocking I/O

c) Commonly used for backend APIs

d) All of the above

View Answer

Correct answer: D — All of the above
Which of the following is true about database integration?

a) Use ORM frameworks like Hibernate

b) Use SQL for relational databases

c) Use NoSQL for flexible schemas

d) All of the above

View Answer

Correct answer: D — All of the above
Which of the following is true about Docker in deployment?

a) Provides containerization

b) Ensures environment consistency

c) Simplifies scaling

d) All of the above

View Answer

Correct answer: D — All of the above
Which of the following is true about frontend build tools?

a) Webpack bundles modules

b) Babel transpiles JavaScript

c) npm/yarn manage dependencies

d) All of the above

View Answer

Correct answer: D — All of the above
What will be printed?

1 System.out.println("API".equals("api"));

a) true

b) false

c) Compilation error

d) Runtime exception

View Answer

Correct answer: B — false
Which of the following is true about RESTful best practices?

a) Use nouns for endpoints

b) Use proper HTTP status codes

c) Support stateless communication

d) All of the above

View Answer

Correct answer: D — All of the above
Which of the following is true about GraphQL advantages?

a) Reduces over fetching

b) Allows flexible queries

c) Provides strong typing

d) All of the above

View Answer

Correct answer: D — All of the above
Which of the following is true about CI/CD tools?

a) Jenkins automates builds

b) GitHub Actions integrates with repos

c) GitLab CI/CD supports pipelines

d) All of the above

View Answer

Correct answer: D — All of the above
Which of the following is true about microservices deployment?

a) Use Kubernetes for orchestration

b) Use API Gateway for routing

c) Use service discovery tools

d) All of the above

View Answer

Correct answer: D — All of the above
Which of the following is NOT a frontend framework?

a) React

b) Angular

c) Vue

d) Hibernate

View Answer

Correct answer: D — Hibernate
What will be printed?

1 System.out.println("Deploy".length());

a) 5

b) 6

c) 7

d) Compilation error

View Answer

Correct answer: B — 6
Which of the following is true about Angular architecture?

a) Uses components and modules

b) Built with TypeScript

c) Provides dependency injection

d) All of the above

View Answer

Correct answer: D — All of the above
In React, which hook is used for side effects?

a) useState

b) useEffect

c) useReducer

d) useMemo

View Answer

Correct answer: B — useEffect
What will be printed?

1 System.out.println("Frontend".charAt(3));

a) n

b) t

c) e

d) Compilation error

View Answer

Correct answer: A — n
Which of the following is true about REST API design?

a) Use proper HTTP methods

b) Stateless communication

c) Return meaningful status codes

d) All of the above

View Answer

Correct answer: D — All of the above
Which of the following is true about GraphQL subscriptions?

a) Provide real time updates

b) Use WebSockets

c) Useful for live feeds

d) All of the above

View Answer

Correct answer: D — All of the above
Which of the following is true about backend frameworks?

a) Spring Boot simplifies Java APIs

b) Express.js is lightweight for Node.js

c) Django is Python based full stack framework

d) All of the above

View Answer

Correct answer: D — All of the above
Which of the following is true about middleware in backend APIs?

a) Handles authentication

b) Manages logging

c) Processes requests before controllers

d) All of the above

View Answer

Correct answer: D — All of the above
What will be printed?

1 System.out.println("API".toLowerCase());

a) api

b) API

c) Compilation error

d) Runtime exception

View Answer

Correct answer: A — api
Which of the following is true about deployment strategies?

a) Blue Green deployment reduces downtime

b) Canary deployment tests with subset users

c) Rolling deployment updates gradually

d) All of the above

View Answer

Correct answer: D — All of the above
Which of the following is true about Docker Compose?

a) Defines multi container apps

b) Uses YAML configuration

c) Simplifies orchestration locally

d) All of the above

View Answer

Correct answer: D — All of the above
Which of the following is true about Kubernetes in full stack apps?

a) Provides container orchestration

b) Supports scaling and self healing

c) Manages deployments and services

d) All of the above

View Answer

Correct answer: D — All of the above
Which of the following is NOT a CI/CD tool?

a) Jenkins

b) GitHub Actions

c) Travis CI

d) Hibernate

View Answer

Correct answer: D — Hibernate
Which of the following is true about frontend state management?

a) Redux provides centralized store

b) Context API shares state across components

c) MobX supports reactive state management

d) All of the above

View Answer

Correct answer: D — All of the above
What will be printed?

1 System.out.println("Deploy".contains("ploy"));

a) true

b) false

c) Compilation error

d) Runtime exception

View Answer

Correct answer: A — true
Which of the following is true about API Gateway in full stack apps?

a) Provides single entry point

b) Handles authentication and rate limiting

c) Routes requests to microservices

d) All of the above

View Answer

Correct answer: D — All of the above
Which of the following is true about frontend testing frameworks?

a) Jest for unit testing in React

b) Jasmine/Karma for Angular

c) Cypress for end to end testing

d) All of the above

View Answer

Correct answer: D — All of the above
Which of the following is true about backend testing tools?

a) JUnit for Java

b) Mocha/Chai for Node.js

c) PyTest for Python

d) All of the above

View Answer

Correct answer: D — All of the above
Which of the following is true about deployment automation?

a) Reduces manual errors

b) Speeds up release cycles

c) Supports rollback strategies

d) All of the above

View Answer

Correct answer: D — All of the above
What will be printed?

1 System.out.println("Integration".length());

a) 10

b) 11

c) 12

d) Compilation error

View Answer

Correct answer: B — 11
Which of the following is true about frontend optimization?

a) Minify CSS/JS files

b) Use lazy loading

c) Optimize images

d) All of the above

View Answer

Correct answer: D — All of the above
Which of the following is true about backend optimization?

a) Use caching

b) Optimize database queries

c) Use connection pooling

d) All of the above

View Answer

Correct answer: D — All of the above
Which of the following is true about microservices integration?

a) Use REST or gRPC for communication

b) Use service discovery tools

c) Use API Gateway for routing

d) All of the above

View Answer

Correct answer: D — All of the above
Which of the following is true about frontend frameworks comparison?

a) React is library focused

b) Angular is full framework

c) Vue is progressive framework

d) All of the above

View Answer

Correct answer: D — All of the above
Which of the following is true about backend frameworks comparison?

a) Spring Boot for Java

b) Express.js for Node.js

c) Django for Python

d) All of the above

View Answer

Correct answer: D — All of the above
What will be printed?

1 System.out.println("Stack".equals("stack"));

a) true

b) false

c) Compilation error

d) Runtime exception

View Answer

Correct answer: B — false
Which of the following is true about CI/CD best practices?

a) Automate testing

b) Use version control integration

c) Monitor deployments

d) All of the above

View Answer

Correct answer: D — All of the above
Which of the following is true about deployment environments?

a) Development for coding/testing

b) Staging for pre production validation

c) Production for live users

d) All of the above

View Answer

Correct answer: D — All of the above
Which of the following is NOT a backend database?

a) MySQL

b) MongoDB

c) PostgreSQL

d) ReactDB

View Answer

Correct answer: D — ReactDB
Which of the following is true about full stack developer skills?

a) Knowledge of frontend frameworks

b) Knowledge of backend APIs

c) Understanding of deployment pipelines

d) All of the above

View Answer

Correct answer: D — All of the above
Which of the following is true about Full Stack Development overall?

a) Combines frontend and backend skills

b) Requires integration knowledge

c) Involves deployment and scaling

d) All of the above

View Answer

Correct answer: D — All of the above

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