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JNET Technologies Interview Questions and Answers
12 Interview questions
A simple JavaScript program that demonstrates basic concepts like variables, functions, and loops.
Variables: Use 'let' or 'const' to declare variables. Example: 'let x = 10;'
Functions: Define reusable code blocks. Example: 'function greet() { return 'Hello!'; }'
Loops: Iterate over arrays or perform repeated actions. Example: 'for (let i = 0; i < 5; i++) { console.log(i); }'
Types of state management in React include local state, props, context API, Redux, and MobX.
Local state: State managed within a component using useState hook.
Props: Data passed from parent to child components.
Context API: Allows sharing state across multiple components without prop drilling.
Redux: External state management library for managing complex state in large applications.
MobX: Another external state manage...
HTML and CSS are languages used for creating and styling web pages.
HTML stands for HyperText Markup Language and is used for creating the structure of a web page.
CSS stands for Cascading Style Sheets and is used for styling the elements on a web page.
HTML uses tags to define different elements like headings, paragraphs, images, and links.
CSS allows for customization of colors, fonts, layouts, and other visual aspe...
Prop drilling is the process of passing down props from a parent component to nested child components, even if the intermediate components do not use the props.
Prop drilling can lead to unnecessary passing of props through multiple levels of components.
It can make the code harder to maintain and understand.
One way to avoid prop drilling is by using context API or state management libraries like Redux.
Example: Pare...
React JS is a JavaScript library for building user interfaces.
React JS is developed and maintained by Facebook.
It allows developers to create reusable UI components.
React uses a virtual DOM for better performance.
It follows a component-based architecture.
React can be used for building single-page applications.
Lead and Lag are analytic functions in SQL used to access data from a previous or subsequent row in a result set.
Lead function is used to access data from a subsequent row in the result set.
Lag function is used to access data from a previous row in the result set.
Both functions take three arguments: the column to retrieve data from, the number of rows forward or backward to look, and a default value if the offset ...
SQL Loader is a tool provided by Oracle for loading data from external files into database tables.
SQL Loader is used to load data from flat files (such as CSV) into Oracle database tables.
It can handle large volumes of data efficiently.
Control files are used to specify the format of the data file and the target table columns.
SQL Loader can perform various data transformations during the loading process.
It is commo...
Performance tuning involves optimizing the speed and efficiency of a system or application.
Identifying and resolving bottlenecks in the system
Optimizing SQL queries by adding indexes, rewriting queries, or using hints
Tuning database parameters such as memory allocation and buffer sizes
Using tools like Explain Plan to analyze query performance
Caching frequently accessed data to reduce load on the database
Refresh mechanism in SQL is used to update the data in a materialized view or a snapshot to reflect changes in the base tables.
Refresh mechanism can be manual or automatic.
Manual refresh requires the user to explicitly refresh the materialized view using a command like REFRESH MATERIALIZED VIEW.
Automatic refresh can be set up using options like ON COMMIT or ON DEMAND.
Examples of automatic refresh include fast refr...
Redux is a predictable state container for JavaScript apps. Context API is a way to pass data through the component tree without having to pass props down manually.
Redux is a state management library commonly used with React to manage application state in a predictable way.
Redux follows a unidirectional data flow pattern, where the state of the whole application is stored in a single store.
Actions are dispatched t...
JNET Technologies Interview Experiences
12 interviews found
Anonymous
(2 Questions)
- Q1. UX and UI Related
- Q2. HTML, CSS, and Bootstrap
(1 Question)
- Q1. Question on your projects and current role
Selected
I appeared for an interview in Dec 2024.
(1 Question)
- Q1. What is the biggest achievement in your life how could you reach that achievement?
- Ans.
My biggest achievement was graduating at the top of my class in college, through hard work and dedication.
Maintained a high GPA throughout college by studying consistently and seeking help when needed
Participated in extracurricular activities to develop leadership and teamwork skills
Completed a challenging senior thesis project that received recognition from faculty members
Selected
I applied via Naukri.com and was interviewed in Dec 2023. There were 2 interview rounds.
(2 Questions)
- Q1. Explain about performance tuning
- Ans.
Performance tuning involves optimizing the speed and efficiency of a system or application.
Identifying and resolving bottlenecks in the system
Optimizing SQL queries by adding indexes, rewriting queries, or using hints
Tuning database parameters such as memory allocation and buffer sizes
Using tools like Explain Plan to analyze query performance
Caching frequently accessed data to reduce load on the database
- Q2. Expalin about sql loader utility
- Ans.
SQL Loader is a tool provided by Oracle for loading data from external files into database tables.
SQL Loader is used to load data from flat files (such as CSV) into Oracle database tables.
It can handle large volumes of data efficiently.
Control files are used to specify the format of the data file and the target table columns.
SQL Loader can perform various data transformations during the loading process.
It is commonly u...
(2 Questions)
- Q1. Expalin about refresh mechanism in sql
- Ans.
Refresh mechanism in SQL is used to update the data in a materialized view or a snapshot to reflect changes in the base tables.
Refresh mechanism can be manual or automatic.
Manual refresh requires the user to explicitly refresh the materialized view using a command like REFRESH MATERIALIZED VIEW.
Automatic refresh can be set up using options like ON COMMIT or ON DEMAND.
Examples of automatic refresh include fast refresh a...
- Q2. Expalin about lead and lag
- Ans.
Lead and Lag are analytic functions in SQL used to access data from a previous or subsequent row in a result set.
Lead function is used to access data from a subsequent row in the result set.
Lag function is used to access data from a previous row in the result set.
Both functions take three arguments: the column to retrieve data from, the number of rows forward or backward to look, and a default value if the offset goes ...
Interview Preparation Tips
Skills evaluated in this interview
Selected
I applied via Approached by Company and was interviewed in Aug 2023. There were 4 interview rounds.
(1 Question)
- Q1. Basic mvc,sql,c# questions
(1 Question)
- Q1. Scenario based questions on c#,sql
(1 Question)
- Q1. Questions about previous work experience
Interview Preparation Tips
Shyam Gupta
Selected
General question on aptitude test
Common test on math & science .
(1 Question)
- Q1. Normal question common,
Selected
I applied via Recruitment Consulltant and was interviewed before Nov 2023. There were 2 interview rounds.
(4 Questions)
- Q1. Introduce yourself
- Ans.
I am a recent graduate with a degree in Computer Science, passionate about coding and problem-solving.
Recent graduate with a degree in Computer Science
Passionate about coding and problem-solving
Experience with programming languages like Java, Python, and C++
- Q2. What are HTML and CSS?
- Ans.
HTML and CSS are languages used for creating and styling web pages.
HTML stands for HyperText Markup Language and is used for creating the structure of a web page.
CSS stands for Cascading Style Sheets and is used for styling the elements on a web page.
HTML uses tags to define different elements like headings, paragraphs, images, and links.
CSS allows for customization of colors, fonts, layouts, and other visual aspects o...
- Q3. What is React JS?
- Ans.
React JS is a JavaScript library for building user interfaces.
React JS is developed and maintained by Facebook.
It allows developers to create reusable UI components.
React uses a virtual DOM for better performance.
It follows a component-based architecture.
React can be used for building single-page applications.
- Q4. What is prop drilling?
- Ans.
Prop drilling is the process of passing down props from a parent component to nested child components, even if the intermediate components do not use the props.
Prop drilling can lead to unnecessary passing of props through multiple levels of components.
It can make the code harder to maintain and understand.
One way to avoid prop drilling is by using context API or state management libraries like Redux.
Example: Parent co...
(4 Questions)
- Q1. What is React JS?
- Ans.
React JS is a JavaScript library for building user interfaces.
React JS is developed and maintained by Facebook.
It allows developers to create reusable UI components.
React uses a virtual DOM for better performance.
It follows a component-based architecture.
React can be used for building single-page applications.
- Q2. What is Reconcilation?
- Ans.
Reconciliation is the process of comparing two sets of records to ensure they are in agreement.
Reconciliation involves verifying and adjusting financial transactions to ensure accuracy.
It is commonly used in accounting to match transactions in bank statements with internal records.
Reconciliation helps identify discrepancies and errors that need to be resolved.
Examples include reconciling credit card statements with rec...
- Q3. What are the types of state management in react?
- Ans.
Types of state management in React include local state, props, context API, Redux, and MobX.
Local state: State managed within a component using useState hook.
Props: Data passed from parent to child components.
Context API: Allows sharing state across multiple components without prop drilling.
Redux: External state management library for managing complex state in large applications.
MobX: Another external state management ...
- Q4. Explain Redux and Context API
- Ans.
Redux is a predictable state container for JavaScript apps. Context API is a way to pass data through the component tree without having to pass props down manually.
Redux is a state management library commonly used with React to manage application state in a predictable way.
Redux follows a unidirectional data flow pattern, where the state of the whole application is stored in a single store.
Actions are dispatched to upd...
Interview Preparation Tips
The second round was deep into the foundations of javascript and React including array and object operations, react implementation techniques, etc.
The second round was lengthy due to the merging of the managerial round into the technical round.
Skills evaluated in this interview
I applied via Walk-in
Trains, coding and decoding, other topics
Selected
I applied via Referral and was interviewed before Nov 2023. There were 3 interview rounds.
(2 Questions)
- Q1. Java script related questions promises, asynchronous and synchronous etc..
- Q2. Js coding small program and one react program counter
(1 Question)
- Q1. Javascript small program and output
- Ans.
A simple JavaScript program that demonstrates basic concepts like variables, functions, and loops.
Variables: Use 'let' or 'const' to declare variables. Example: 'let x = 10;'
Functions: Define reusable code blocks. Example: 'function greet() { return 'Hello!'; }'
Loops: Iterate over arrays or perform repeated actions. Example: 'for (let i = 0; i < 5; i++) { console.log(i); }'
(1 Question)
- Q1. Expected salary and work life balance project related
mani raj
Selected
I applied via Walk-in and was interviewed before Jun 2023. There were 3 interview rounds.
(2 Questions)
- Q1. Tell me about yourself ? Fallow up: about project
- Q2. OOPs based questions
You will be given some coding questions and need to code them on your machine. This is happened in virtual mode.
(2 Questions)
- Q1. OOPS based questions
- Q2. Behavioural questions
chakali Ashokkumar
About your self,jam session,and group discussion
(2 Questions)
- Q1. Tell me about your self?
- Ans.
I am an experienced ASP.NET Developer with a strong background in web development and a passion for creating efficient and user-friendly applications.
Over 5 years of experience in ASP.NET development
Proficient in C#, HTML, CSS, JavaScript, and SQL
Strong understanding of MVC architecture and object-oriented programming
Experience with front-end frameworks like Angular and React
Developed and maintained multiple web applic...
- Q2. Pollution (group discussion ?
Interview Preparation Tips
Top trending discussions
JNET Technologies Interview FAQs
The duration of JNET Technologies interview process can vary, but typically it takes about less than 2 weeks to complete.
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