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Chetu Interview Questions and Answers for Freshers
25 Interview questions
The event loop is a core concept in JavaScript that manages asynchronous operations and executes code in a non-blocking manner.
The event loop allows JavaScript to perform non-blocking I/O operations despite being single-threaded.
It works with a call stack, a callback queue, and a message queue to handle asynchronous tasks.
When an asynchronous operation completes, its callback is pushed to the callback queue.
The ev...
Building an xgboost model involves training a gradient boosting algorithm for classification or regression tasks.
Install xgboost library using pip install xgboost
Import necessary libraries like xgboost, numpy, and pandas
Prepare the data by splitting into training and testing sets
Instantiate an xgboost classifier or regressor object
Fit the model on the training data using the fit method
Make predictions on the test ...
Creating a virtual environment in CMD helps manage dependencies for Python projects.
Open Command Prompt (cmd) on your computer.
Navigate to your project directory using 'cd path_to_your_project'.
Run 'python -m venv env' to create a virtual environment named 'env'.
Activate the virtual environment with 'env\Scripts\activate' on Windows.
To deactivate, simply type 'deactivate' in the command prompt.
Creating a simple Artificial Neural Network (ANN) using Tensorflow.
Import the necessary libraries like tensorflow and numpy.
Define the input layer, hidden layers, and output layer.
Compile the model with appropriate loss function and optimizer.
Train the model using training data.
Evaluate the model using test data.
JavaScript anonymous functions in jQuery are used to create functions without a name, while JavaScript functions are named functions.
JavaScript functions are named and can be reused multiple times.
jQuery anonymous functions are used for event handling and callbacks.
JavaScript functions can be defined using the function keyword, while jQuery anonymous functions are created using the $ symbol.
OOP stands for Object-Oriented Programming, a programming paradigm based on the concept of objects.
OOP focuses on creating objects that contain data and methods to manipulate that data.
In DotNet, OOP is implemented using classes and objects. Classes define the blueprint for objects, while objects are instances of classes.
Encapsulation, inheritance, and polymorphism are key principles of OOP that are utilized in Do...
A stored procedure in MS SQL is a precompiled collection of SQL statements that can be saved and reused.
Stored procedures can improve performance by reducing the amount of data sent over the network.
They can be used to encapsulate business logic and provide a layer of security by controlling access to data.
Stored procedures can accept input parameters and return output parameters or result sets.
Example: CREATE PRO...
Types of joins in Ms Sql include inner join, left join, right join, and full outer join.
Inner join: Returns rows when there is at least one match in both tables.
Left join: Returns all rows from the left table and the matched rows from the right table.
Right join: Returns all rows from the right table and the matched rows from the left table.
Full outer join: Returns rows when there is a match in one of the tables.
MVC stands for Model-View-Controller. It is a design pattern used in DotNet for separating concerns in an application.
Model represents the data and business logic of the application.
View is responsible for displaying the user interface.
Controller handles user input and updates the model and view accordingly.
MVC helps in achieving separation of concerns, making the code more organized and maintainable.
Example: In a...
foreach is used to iterate over an array and perform an action on each element, while map creates a new array by applying a function to each element of an existing array.
foreach does not return a new array, while map does
foreach can only perform an action on each element, while map can transform each element
foreach is useful for performing side effects, while map is useful for creating a new array with transformed...
Chetu Interview Experiences for Freshers
20 interviews found
Harshit Jain
Basic aptitude test with technical and non technical question
(1 Question)
- Q1. What is event loop
- Ans.
The event loop is a core concept in JavaScript that manages asynchronous operations and executes code in a non-blocking manner.
The event loop allows JavaScript to perform non-blocking I/O operations despite being single-threaded.
It works with a call stack, a callback queue, and a message queue to handle asynchronous tasks.
When an asynchronous operation completes, its callback is pushed to the callback queue.
The event l...
Anwar Ali
Selected
- Q1. Some basic html, css, js and reactjs questions..
- Q2. Basic questions from html css js and reactjs
Anonymous
(2 Questions)
- Q1. All oops concept
- Ans.
Object-oriented programming concepts like inheritance, encapsulation, polymorphism, and abstraction.
Inheritance: Allows a class to inherit properties and behavior from another class.
Encapsulation: Bundling data and methods that operate on the data into a single unit.
Polymorphism: Ability to present the same interface for different data types.
Abstraction: Hiding the complex implementation details and showing only the ne...
- Q2. Basic sql query
Interview Preparation Tips
Skills evaluated in this interview
Selected
I applied via Approached by Company and was interviewed in Dec 2023. There were 4 interview rounds.
Mcq on sql, python, syntax, english sentence
(2 Questions)
- Q1. Question on dictionary
- Q2. Question on data leakage, bias variance trade off,
(4 Questions)
- Q1. Build xg bost model(actaul code)
- Ans.
Building an xgboost model involves training a gradient boosting algorithm for classification or regression tasks.
Install xgboost library using pip install xgboost
Import necessary libraries like xgboost, numpy, and pandas
Prepare the data by splitting into training and testing sets
Instantiate an xgboost classifier or regressor object
Fit the model on the training data using the fit method
Make predictions on the test data ...
- Q2. Create the virtual environment using cmd.
- Ans.
Creating a virtual environment in CMD helps manage dependencies for Python projects.
Open Command Prompt (cmd) on your computer.
Navigate to your project directory using 'cd path_to_your_project'.
Run 'python -m venv env' to create a virtual environment named 'env'.
Activate the virtual environment with 'env\Scripts\activate' on Windows.
To deactivate, simply type 'deactivate' in the command prompt.
- Q3. Remove space from given dataframe and concat the first and last name and add new column to dataframe.
- Ans.
Remove spaces from dataframe, concatenate first and last name, and add new column.
Use str.replace() to remove spaces from dataframe columns.
Use str.cat() to concatenate first and last name.
Use df['new_column'] = concatenated_names to add new column.
- Q4. Create simple ANN network using Tensorflow.
- Ans.
Creating a simple Artificial Neural Network (ANN) using Tensorflow.
Import the necessary libraries like tensorflow and numpy.
Define the input layer, hidden layers, and output layer.
Compile the model with appropriate loss function and optimizer.
Train the model using training data.
Evaluate the model using test data.
(3 Questions)
- Q1. Salary discussion?
- Q2. Asking to come to office location noida to received offer letter
- Q3. No clarity on what CTC they are offering.
Interview Preparation Tips
- Deep Learning
- Machine Learning
- Python
- Data Structures
Skills evaluated in this interview
Selected
I applied via Approached by Company
There is MCQ question categories reasoning math logical puzzle etc.
(1 Question)
- Q1. Question from java and android 1 Opps deep drive concept Encapsulation Abstraction Polymorphism Inheritance Use of keywords Var , val cons, static inline return break an...
Assign some coding questions it will online on zoom and it will be final round
Interview Preparation Tips
- OOPS
- Android SDK
- Background service
- Intent
- coroutine
- Daggr
- hilt
Redy for interview if you don’t know answer of question simply say sorry i don’t have remember and skip on next question okay be cool 😎
Selected
I applied via Referral and was interviewed in Aug 2023. There were 2 interview rounds.
Aptitude test was very easy
(5 Questions)
- Q1. What is OOP’s Concept and how using in DotNet
- Ans.
OOP stands for Object-Oriented Programming, a programming paradigm based on the concept of objects.
OOP focuses on creating objects that contain data and methods to manipulate that data.
In DotNet, OOP is implemented using classes and objects. Classes define the blueprint for objects, while objects are instances of classes.
Encapsulation, inheritance, and polymorphism are key principles of OOP that are utilized in DotNet ...
- Q2. What is Mvc and what is the role in DotNet
- Ans.
MVC stands for Model-View-Controller. It is a design pattern used in DotNet for separating concerns in an application.
Model represents the data and business logic of the application.
View is responsible for displaying the user interface.
Controller handles user input and updates the model and view accordingly.
MVC helps in achieving separation of concerns, making the code more organized and maintainable.
Example: In a DotN...
- Q3. What are the types of joins in Ms Sql
- Ans.
Types of joins in Ms Sql include inner join, left join, right join, and full outer join.
Inner join: Returns rows when there is at least one match in both tables.
Left join: Returns all rows from the left table and the matched rows from the right table.
Right join: Returns all rows from the right table and the matched rows from the left table.
Full outer join: Returns rows when there is a match in one of the tables.
- Q4. What is store procedure in Ms Sql
- Ans.
A stored procedure in MS SQL is a precompiled collection of SQL statements that can be saved and reused.
Stored procedures can improve performance by reducing the amount of data sent over the network.
They can be used to encapsulate business logic and provide a layer of security by controlling access to data.
Stored procedures can accept input parameters and return output parameters or result sets.
Example: CREATE PROCEDUR...
- Q5. What is the significance of Sql joins in database management
- Ans.
Sql joins are used to combine rows from two or more tables based on a related column between them.
Joins are essential for retrieving data from multiple tables in a database
Types of joins include inner join, outer join, left join, and right join
Example: SELECT * FROM table1 INNER JOIN table2 ON table1.id = table2.id
Interview Preparation Tips
- Java Script
- MS SQL Server
Skills evaluated in this interview
Amresh Sharma
Selected
(1 Question)
- Q1. About you your experience and communication skills
(2 Questions)
- Q1. Depends upon team leader Ask basics as well as the issue they are facing during their work.
- Q2. Especially Linux file system How to mount additional disk Booting process Docker file structure
(2 Questions)
- Q1. Second technical round is depends upon the TL he can ask your experience and issues
- Q2. And can ask questions about cloud AWS and azure
(1 Question)
- Q1. Salary discussion
Not so tough and you will learn a lot of things that are new to you
The duration is about 90 minute
I applied via Campus Placement and was interviewed in Nov 2022. There were 3 interview rounds.
There main focus was on coding there were 10mcq of your coding s nd other section was for aptitude
(2 Questions)
- Q1. They will start asking from your core branch... As you take any language name you found your expertise they will ask deeply on tht topic
- Q2. If you are from like electronic engineering student they will ask you questions from your related subject?!!
Interview Preparation Tips
Selected
I applied via Naukri.com and was interviewed before May 2023. There were 3 interview rounds.
Multiple question math GK reasoning etc
(5 Questions)
- Q1. C# string and string builder
- Ans.
String is mutable which mean one values assign then it can not change It create new object every execute String builder is immutable its values is changes dynamically means it can not create new object
- Q2. Sql question total 40 min on call
- Ans.
Select *from table1,table and execute result Join queres
- Q3. Java script difference b/w java script and jQuery anonymous function in java
- Q4. Constructor type casting its types
- Ans.
Constructor type casting involves converting one data type to another in a constructor.
Constructor type casting is used to convert one data type to another in a constructor.
It can be done implicitly or explicitly depending on the languages.
For example, in Java, you can explicitly cast a data type in a constructor like this: int num = (int) doubleNum;
- Q5. C# reverse string program without using in build feature
- Ans.
Reverse a string in C# without using built-in features
Create a character array from the input string
Use two pointers to swap characters at the beginning and end of the array
Continue swapping until the pointers meet in the middle
Sql queries and c# coding
Skills evaluated in this interview
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