Accentus Consulting Senior Software Engineer Interview Questions and Answers

Q1. What is list comprehension
Ans. 
List comprehension is a concise way to create lists in Python by applying an expression to each item in an iterable.
• List comprehension is written inside square brackets []

• It consists of an expression followed by a for clause, then zero or more if clauses

• Example: squares = [x**2 for x in range(10)]
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Q2. Explain spark architecture
Ans. 
Apache Spark is a distributed computing system that provides an interface for programming entire clusters with implicit data parallelism and fault tolerance.
• Apache Spark follows a master-slave architecture with a driver program that communicates with a cluster manager to distribute work across worker nodes.

• It uses Resilient Distributed Datasets (RDDs) as the basic data structure, which are immutable distributed collect...read more
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Write code for palindtomr

Q1. Tell me your project details
Ans. 
Developed a web application for online shopping with user authentication and payment gateway integration.
• Used React.js for front-end development

• Implemented user authentication using JWT tokens

• Integrated Stripe API for payment processing
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Q1. Oops concepts explained
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Q1. Optimization Techniques
Ans. 
Optimization techniques are methods used to improve the efficiency and performance of software applications.
• Use of algorithms like dynamic programming and greedy algorithms

• Profiling and performance tuning to identify bottlenecks

• Code refactoring to improve readability and maintainability

• Utilizing caching and memoization for faster access to data

• Parallel processing and multi-threading for improved concurrency
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Mostly they asked questions on String or basic coding questions

Q1. Core java questions basics, SpringBoot Microservice ,Sql questions
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Q1. Mostly questions on core java, day to day activities , agile,beghavioural questions
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Q1. Salary Expectation
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Q1. Explain Project Architecture
Ans. 
Project architecture refers to the high-level structure of a software system, including components, relationships, and interactions.
• Project architecture defines how different components of a software system interact with each other.

• It includes the design decisions related to the organization of code, data, and resources.

• Common architectural patterns include MVC, microservices, and serverless.

• Architectural diagrams like...read more
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Q2. Springboot components
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Q3. Angular Lifecycle
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Q1. Snake and ladder lld
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Q2. Spring question on annotations
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Q1. Find k closest elements
Ans. 
Find k closest elements in an array
• Sort the array based on the absolute difference between each element and the target element

• Return the first k elements from the sorted array
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Q2. K Closest elements
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Anagram, Pythagorean triplets

Js coding test with modifications

Q1. Questions on spring boot
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Q2. Questions on Java
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Q3. Java 8 Stream APi
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Q4. Questions on previous projects
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Q1. Java 8 features and benefits
Ans. 
Java 8 introduced new features like lambda expressions, streams, and default methods, improving code readability and performance.
• Lambda expressions allow for more concise code and easier parallel programming.

• Streams provide a way to work with collections in a functional style, enabling easier processing of large data sets.

• Default methods allow interfaces to have method implementations, reducing the need for abstract cl...read more
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