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iServeU Software Developer Interview Questions and Answers
6 Interview questions
Async in Node.js can be implemented using callbacks, promises, or async/await.
Use callbacks to handle asynchronous operations in Node.js
Promises can be used for cleaner asynchronous code
Async/await provides a more synchronous way to write asynchronous code
Angular is a front-end framework for building client-side applications, while Node.js is a back-end runtime environment for running server-side applications.
Angular is used for building dynamic web applications with HTML, CSS, and TypeScript.
Node.js is used for server-side scripting and building scalable network applications.
Angular is a front-end framework developed and maintained by Google.
Node.js is a back-end ...
Node.js has several core modules that provide essential functionality for building applications.
HTTP: Allows Node.js to transfer data over the Hyper Text Transfer Protocol (HTTP)
FS: Provides file system operations like reading and writing files
OS: Gives information about the operating system on which Node.js is running
Path: Helps in working with file and directory paths
Events: Allows to handle events in Node.js ap...
process.nextTick() is called before any I/O events, while setImmediate() is called after I/O events.
process.nextTick() is called at the end of the current event loop cycle, before any I/O events.
setImmediate() is called at the beginning of the next event loop cycle, after I/O events.
Use process.nextTick() for executing code asynchronously but as soon as possible.
Use setImmediate() for executing code asynchronously...
Column family is a data model used in NoSQL databases to store related data together.
Used in NoSQL databases like Apache Cassandra
Consists of rows and columns
Columns are grouped together and stored on disk sequentially
Supports wide rows and dynamic columns
Example: In a social media application, a column family could store user profiles with columns for name, age, and location
Casendra CQL is a query language used for general operations in Casendra database.
Casendra CQL is similar to SQL but optimized for Cassandra database
It supports CRUD operations (Create, Read, Update, Delete)
It allows for filtering, sorting, and aggregating data
Example: SELECT * FROM table_name WHERE column_name = value;
iServeU Software Developer Interview Experiences
4 interviews found
BiswaSwarup Misra
Selected
(2 Questions)
- Q1. What is DBMS structure
- Q2. What is API and MQTT
Interview Preparation Tips
Anonymous
Selected
I applied via LinkedIn and was interviewed in Mar 2023. There were 3 interview rounds.
(5 Questions)
- Q1. How much was your previous in hand salary?
- Q2. How far do you stay from the office, during nights if needed can you come on your own during any critical situation (Note: I'm a woman)?
- Q3. Are you ok with 40% less in-hand pay from your previous job in Banglore, since you're getting to stay in your hometown and your expenses will be less here?
- Q4. Are you married? Do you have children? What does your husband do? How long are you planning to stay in Bhubaneswar?
- Q5. Are you ok with an employment bond of 24 months with a probation period of 12 months
(6 Questions)
- Q1. What are different modules of node js?
- Ans.
Node.js has several core modules that provide essential functionality for building applications.
HTTP: Allows Node.js to transfer data over the Hyper Text Transfer Protocol (HTTP)
FS: Provides file system operations like reading and writing files
OS: Gives information about the operating system on which Node.js is running
Path: Helps in working with file and directory paths
Events: Allows to handle events in Node.js applica...
- Q2. Difference between angular and node js
- Ans.
Angular is a front-end framework for building client-side applications, while Node.js is a back-end runtime environment for running server-side applications.
Angular is used for building dynamic web applications with HTML, CSS, and TypeScript.
Node.js is used for server-side scripting and building scalable network applications.
Angular is a front-end framework developed and maintained by Google.
Node.js is a back-end runti...
- Q3. Difference between process.nextTick( ) and setImmediate( )
- Ans.
process.nextTick() is called before any I/O events, while setImmediate() is called after I/O events.
process.nextTick() is called at the end of the current event loop cycle, before any I/O events.
setImmediate() is called at the beginning of the next event loop cycle, after I/O events.
Use process.nextTick() for executing code asynchronously but as soon as possible.
Use setImmediate() for executing code asynchronously afte...
- Q4. How to implement async in node js
- Ans.
Async in Node.js can be implemented using callbacks, promises, or async/await.
Use callbacks to handle asynchronous operations in Node.js
Promises can be used for cleaner asynchronous code
Async/await provides a more synchronous way to write asynchronous code
- Q5. General operations of Casendra CQL
- Ans.
Casendra CQL is a query language used for general operations in Casendra database.
Casendra CQL is similar to SQL but optimized for Cassandra database
It supports CRUD operations (Create, Read, Update, Delete)
It allows for filtering, sorting, and aggregating data
Example: SELECT * FROM table_name WHERE column_name = value;
- Q6. Characteristics of column family
- Ans.
Column family is a data model used in NoSQL databases to store related data together.
Used in NoSQL databases like Apache Cassandra
Consists of rows and columns
Columns are grouped together and stored on disk sequentially
Supports wide rows and dynamic columns
Example: In a social media application, a column family could store user profiles with columns for name, age, and location
(1 Question)
- Q1. CEO asked to turn on camera. Asked if i'm married (i'm a woman), the interview was scheduled for 10;30pm in the night. Asked me not to be so formal and treat him like a friend and be casual. I suspect he w...
Interview Preparation Tips
Skills evaluated in this interview
Ayesha Jena
Selected
I applied via Company Website and was interviewed before Dec 2023. There was 1 interview round.
(2 Questions)
- Q1. Explain about yourself?
- Ans.
I am a software developer with 5 years of experience in Java, Python, and SQL.
I have a Bachelor's degree in Computer Science from XYZ University.
I have worked on developing web applications using Java Spring framework.
I am proficient in writing complex SQL queries for database management.
I have experience in developing automation scripts using Python.
- Q2. What is OOP'S Concept in Java?
Selected
I applied via Walk-in and was interviewed before Aug 2023. There was 1 interview round.
MCQ on programing. Easy peasy.
Interview Preparation Tips
Top trending discussions
Interview questions from similar companies
I appeared for an interview before Sep 2020.
(1 Question)
Round duration - 90 mins
Round difficulty - Hard
There were questions related to DP and DFS.
- Q1.
Trapping Rain Water Problem Statement
You are given a long type array/list
ARRof sizeN, representing an elevation map. The valueARR[i]denotes the elevation of theithbar. Your task is to determine th... - Ans.
Calculate the total amount of rainwater that can be trapped between given elevations in an array.
Iterate through the array and calculate the maximum height on the left and right of each bar.
Calculate the amount of water that can be trapped at each bar by taking the minimum of the maximum heights on the left and right.
Sum up the trapped water at each bar to get the total trapped water for the entire array.
(3 Questions)
Round duration - 60 mins
Round difficulty - Medium
At first, I was asked about the different projects that I have done so far. We had a detailed discussion on the same.
He also checked my OOP concepts
- Q1. Can you describe the process of designing an LRU Cache from scratch during your System Design Round?
- Ans.
Designing an LRU Cache involves implementing a data structure that stores a fixed number of items and removes the least recently used item when full.
Start by defining the data structure for the cache, typically using a combination of a hashmap and a doubly linked list.
Implement methods for getting and setting key-value pairs in the cache.
When a new item is added to the cache, check if it exceeds the maximum capacity. I...
- Q2.
Reverse Linked List Problem Statement
Given a Singly Linked List of integers, your task is to reverse the Linked List by altering the links between the nodes.
Input:
The first line of input is an intege... - Ans.
Reverse a singly linked list by altering the links between nodes.
Iterate through the linked list and reverse the links between nodes
Use three pointers to keep track of the current, previous, and next nodes
Update the links between nodes to reverse the list
Return the head of the reversed linked list
- Q3.
Middle of a Linked List
You are given the head node of a singly linked list. Your task is to return a pointer pointing to the middle of the linked list.
If there is an odd number of elements, return the ...
- Ans.
Return the middle element of a singly linked list, or the one farther from the head if there are even elements.
Traverse the linked list with two pointers, one moving twice as fast as the other
When the fast pointer reaches the end, the slow pointer will be at the middle
If there are even elements, return the one that is farther from the head node
Handle edge cases like linked list of size 1 or empty list
Round duration - 60 mins
Round difficulty - Medium
It is HR + Technical round
asked about the Behavioural questions and how you justify yourself in an argument .questions related to current technology.
They gave me feedback on how well I had performed so far and gave me suggestions on what more can I do to further improve myself.
Interview Preparation Tips
Tip 1 : Be thorough about your projects
Tip 2 : Prepare Ds and Algo and Practice all standard questions
Tip 3 : Know the complexities of the code that you’ve written.
Tip 1 : Mention at least 2 projects.
Tip 2 : Don't make any silly spelling mistakes on resume
Skills evaluated in this interview
I applied via Job Portal and was interviewed in Dec 2024. There was 1 interview round.
(1 Question)
- Q1. Find Target Element in a rotating sorted Array.
I applied via LinkedIn and was interviewed in Feb 2024. There was 1 interview round.
(1 Question)
- Q1. Sort array of cards in color red , blue,green
- Ans.
Sort array of cards in red, blue, green colors.
Use a custom sorting function to sort the array based on color order.
Assign a numerical value to each color (e.g. red: 0, blue: 1, green: 2) and sort based on these values.
Implement a sorting algorithm like bubble sort or quicksort to rearrange the array based on color order.
Skills evaluated in this interview
Selected
I applied via Campus Placement and was interviewed in Nov 2024. There were 3 interview rounds.
Logical reasoning, grammar, and coding: two basic level questions.
(3 Questions)
- Q1. Question on core Java
- Q2. Question on SQL and PLSQL
- Q3. Resume based question and on project
(2 Questions)
- Q1. Resume and project based question
- Q2. What do you like about your current company, and why do you want to join our organization?
- Ans.
I appreciate the collaborative team environment and innovative projects at my current company, and I am excited about the opportunities for growth and learning at your organization.
Collaborative team environment fosters creativity and productivity
Innovative projects challenge me to learn and grow
Excited about the opportunities for growth and learning at your organization
Selected
I applied via LinkedIn
(2 Questions)
- Q1. Java Based question answers
- Q2. Array traversal problem
- Ans.
Traverse an array of strings
Use a loop to iterate through each element in the array
Access each element using its index
Perform any necessary operations on each element
Skills evaluated in this interview
Selected
I applied via Naukri.com and was interviewed before May 2023. There was 1 interview round.
It was good. Mostly questions on spark
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Overall Interview Experience Rating
based on 4 interview experiences
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iServeU Software Developer Reviews and Ratings
based on 6 reviews
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