BCG Software Engineering Specialist Interview Questions and Answers

Q1. Technical of cloud wsdl and rest api's scecurity they aked
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Q2. Basics of integration cloud and vbcs and oracle finance module they asked
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Code test on Codility

Q1. How NodeJs handles concurrency
Ans. 
NodeJs handles concurrency using event-driven, non-blocking I/O model.
• NodeJs uses event loop to handle multiple requests concurrently.

• It utilizes asynchronous functions to avoid blocking the main thread.

• NodeJs supports callbacks, promises, and async/await for managing asynchronous operations.
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Q2. Event Loop, Single Threaded
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Q1. Your day to day activities, Roles and Responsibilities
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It was a MCQ type round with 3 coding questions. This round consisted of questions from aptitude, SQL knowledge and a sql command writing question, Programming basics, Web Technology, 2 coding questions. CS Subjects and some Situational based questions.

It was a Just a minute round in which a topic was given by the interviewer to speak upon.

Q1. What all technologies you feel will be fruitful in learning with regards to your future growth?
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Q1. Explain NOSQL databases and their working?
Ans. 
NOSQL databases are non-relational databases that provide flexible schema design and horizontal scalability.
• NOSQL databases store data in key-value pairs, wide-column stores, document databases, or graph databases.

• They are designed for handling large volumes of data and are highly scalable.

• Examples include MongoDB, Cassandra, Redis, and Neo4j.
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Q1. Describe the working of your projects and how did you manage with hectic load of your curriculum being a part of your project building which is from some other domain?
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Q1. Lifecycle hooks of Angular
Ans. 
Angular lifecycle hooks are methods that allow you to tap into specific points in a component's lifecycle.
• ngOnChanges: called when an input property changes

• ngOnInit: called once the component is initialized

• ngDoCheck: called during every change detection run

• ngAfterContentInit: called after content (ng-content) has been projected into the component

• ngAfterContentChecked: called after every check of the projected content

• ng...read more
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Q2. SOLID principles
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Q1. Questions on SQL
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Q1. Introduction and basic questions
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Q1. What are services in Drupal?
Ans. 
Services in Drupal are reusable objects that perform specific functions, such as database queries or sending emails.
• Services are defined in YAML files and can be accessed throughout a Drupal site.

• They are used to encapsulate reusable functionality and promote code reusability.

• Examples of services in Drupal include the database service for interacting with the database, the mail service for sending emails, and the logge
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Q2. How to debug in Drupal?
Ans. 
Debugging in Drupal involves using tools like Devel module, watchdog(), and error logs.
• Enable Devel module for debugging information

• Use watchdog() function to log messages to Drupal's watchdog log

• Check error logs for PHP errors and warnings

• Use dpm() function to print variables for debugging purposes
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Q1. Basic to advanced javascript questions
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Q2. Questions based on angular framework
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Round duration - 90 Minutes
Round difficulty - Medium

Q1. 
Duplicate Integer in Array
Given an array ARR of size N, containing each number between 1 and N-1 at least once, identify the single integer that appears twice.
Input:
The first line contains an integer...read more
Ans. 
Tip 1 : Use the filter() method in Javascript
Tip 2 : Using a Set() Method in Javascript
Tip 3 : Using the reduce() Method in Javascript
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Round duration - 45 Minutes
Round difficulty - Medium

They wants to Check your Problem solving techniques with best case and how you approach a problem and the way you solve
they wants to solve in more than one way 
also they ask basic Questions Related to your frame Work you are working

Q1. 
Anagram Pairs Verification
In this task, you need to verify if two provided strings are anagrams of each other. Two strings are considered anagrams if you can rearrange the letters of one string to form t...read more
Ans. 
1)Take Input two strings ‘a’ and ‘b’
2)A function checkStringAnagrams(string a, string b) which will return true if they are anagram of each other otherwise false.
3)Find the length of both strings and check if they are the same.
4)Now sort both strings in lexicographically order and check if they are equal or not.

Return true or false accordingly.
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Round duration - 20 Minutes
Round difficulty - Easy

General About yourSelf and How was your previous round and CTC discussion

Q1. Can you discuss the CTC (Cost to Company) offered in this position?
Ans. 
Tip 1 : Ask at least 60% hike if not then match with the existing package for that Role 
 
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