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Osttra Interview Questions, Process, and Tips
Top Osttra Interview Questions and Answers
- Q1. Promise and callbacks, tell the sequence which runs first.asked in Software Engineer interview
- Q2. What is java and datatypes and methods and jdk jvmasked in QA Engineer interview
- Q3. Longest Substring without repeating characterasked in Software Developer interview
Osttra Interview Experiences
12 interviews found
Anonymous
I was interviewed in Dec 2024.
(5 Questions)
- Q1. Css Position, Display properties, flex box.
- Q2. Event Loop in JS.
- Ans.
Event Loop in JS manages asynchronous operations by executing callback functions in a queue.
Event Loop is a mechanism in JavaScript that allows asynchronous operations to be handled efficiently.
It continuously checks the call stack for any functions to execute, and the callback queue for any functions to be pushed onto the call stack.
Example: setTimeout() function in JS uses the Event Loop to execute a callback functio
- Q3. Promise and callbacks, tell the sequence which runs first.
- Ans.
Callbacks run first before promises in JavaScript.
Callbacks are executed immediately when they are defined.
Promises are executed asynchronously, after the current call stack is empty.
Example: Callback function passed to setTimeout() runs before the promise resolves.
- Q4. RXJS subject and behavior subject difference.
- Ans.
RXJS subject is a generic observable while behavior subject has an initial value and replays it to new subscribers.
RXJS subject is a generic observable that can emit multiple values to multiple subscribers.
Behavior subject is a type of subject that requires an initial value and replays it to new subscribers.
Behavior subject is useful for scenarios where you always want new subscribers to get the most recent value.
Examp...
- Q5. How to achieve singleton in angular.
- Ans.
Singleton in Angular can be achieved by creating a service with providedIn: 'root' in the @Injectable decorator.
Create a service with providedIn: 'root' in the @Injectable decorator
Use the service throughout the application to ensure only one instance is created
Software Engineer Interview Questions asked at other Companies
Selected
I was interviewed in Aug 2024.
(2 Questions)
- Q1. IT Service Desk related questions
- Q2. Microsoft Entra ID and Google Workspace questions
(2 Questions)
- Q1. ITSM questions and service delivery
- Q2. Question related to work experience
I applied via Recruitment Consulltant and was interviewed in Mar 2024. There was 1 interview round.
(5 Questions)
- Q1. Interview started with an introduction then Technical person shared a link wherein 1 programming question on String- find longest non repeating substring need to be find and 20 MCQs on Java, DS Algo, AWS w...
- Q2. Longest Substring without repeating character
- Ans.
Find the longest substring without repeating characters in a given string.
Use a sliding window approach to iterate through the string and keep track of the characters seen so far.
Update the start index of the window when a repeating character is encountered.
Keep track of the longest substring length and characters seen in a hashmap.
- Q3. Core Java fundmentals
- Q4. AWS ECS, CLoudWatch
- Q5. Hibernate, SQL coding questions
Interview Preparation Tips
- Data Structures
- Java
Skills evaluated in this interview
Software Developer Interview Questions asked at other Companies
(1 Question)
- Q1. ELB, S3 types, terraform debugging questions, scenario based aws questions
(1 Question)
- Q1. Terraform, git, aws
Devops Interview Questions asked at other Companies
Osttra interview questions for popular designations
Selected
Aptitute based questions
(1 Question)
- Q1. Java and aws based
Software Developer Interview Questions asked at other Companies
I applied via Approached by Company and was interviewed in Oct 2023. There were 6 interview rounds.
(1 Question)
- Q1. This was a virtual round where 3easy DSA questions were asked and then java theoretical MCQs with some deep dive into explainations.
(2 Questions)
- Q1. This was an in-office round with questions from DSA, Java and SQL. Questions from many areas are asked with sometimes going deep into a topic. If you are solid with your concepts then it should be fine.
- Q2. Some of the questions I can remember were in the areas of multithreading, OOPs concepts SOLID principles, design patterns. Method overriding/overloading. Stream api.
(2 Questions)
- Q1. This round had some design and managerial questions. Design a to-do list with DB and api details.
- Q2. Any instances in your organization where you presented a POC?
- Ans.
Yes, I presented a POC for a new feature in our company's software platform.
I conducted research to identify the need for the new feature
I developed a prototype to demonstrate the functionality of the feature
I presented the POC to stakeholders for feedback and approval
(1 Question)
- Q1. This was just a simple discussion where some details about the organisation were given. You can ask your own questions.
(1 Question)
- Q1. After you successfully clear the rounds, they will ask you to share payslips and related documents. After sharing documents they will call you 2-3 days later for negotiation. They go through your documents...
Interview Preparation Tips
The technical round thoroughly goes through many areas of a topic, so make sure you understand the concepts well.
Little bit of DSA should be good.
Associate Software Engineer 2 Interview Questions asked at other Companies
I applied via Recruitment Consulltant and was interviewed in Dec 2023. There were 2 interview rounds.
(1 Question)
- Q1. What are you looking for in the next company/opportunity?
(1 Question)
- Q1. Difficult situation you handled?
Associate Director Interview Questions asked at other Companies
Selected
(2 Questions)
- Q1. Go through your resume and tell me about yourself
- Q2. Topics for reg reporting basic questions
Interview Preparation Tips
Senior Specialist Interview Questions asked at other Companies
(1 Question)
- Q1. Implement cache
Senior Software Engineer Interview Questions asked at other Companies
Vivek Paliwal
Selected
I applied via Recruitment Consulltant and was interviewed before Jan 2022. There were 4 interview rounds.
(1 Question)
- Q1. 15 mins round to quickly check you have worked on java
2 programs. Implement LRU cache and check two strings are anagrams
(1 Question)
- Q1. Java 8 stream questions. One program. One puzzle.
Interview Preparation Tips
Senior Software Engineer Interview Questions asked at other Companies
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Osttra Interviews By Designations
- Osttra Software Developer Interview Questions
- Osttra Senior Software Engineer Interview Questions
- Osttra Senior Specialist Interview Questions
- Osttra Software Engineer Interview Questions
- Osttra Test Engineer Interview Questions
- Osttra Associate Software Engineer 2 Interview Questions
- Osttra QA Engineer Interview Questions
- Osttra Devops Interview Questions
- Show more
Interview Questions for Popular Designations
Osttra Interview Process
based on 12 interviews
Interview experience
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