Quick Messenger Service Interview Questions and Answers

Q1. When should classical machine learning models, deep learning, and large language models be utilized?
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Q2. What is a Convolutional Neural Network (CNN), and what is its architecture?
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Q3. What is a Recurrent Neural Network (RNN), and how does it function?
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Q4. How does Long Short-Term Memory (LSTM) work, and how is it different from Recurrent Neural Networks (RNN)?
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Q5. What are filters in Convolutional Neural Networks (CNNs), and how do they function?
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Q6. How does a Convolutional Neural Network (CNN) detect lines in an image?
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Q7. What is the vanishing gradient problem, and what steps can be taken to prevent it?
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Q8. Given a dataset and an integer k, which represents the desired number of clusters, write a Python function that performs hierarchical clustering on the dataset and returns the points associated with k clus...read more
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Q1. Basic question on the tool I use in previous company and ask question on the components of it.
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Q1. More on what is my role and managerial round.
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Q1. 2 hour long interview with a panel of 4. Possibly every single question that can be asked and repeatedly same things. They tried understanding the process and functions elaborately way too much which was ...read more
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Q1. Everything was already asked. But they need to drench and waste time of the candidate and themselves so they set up another round of technical to ask the same questions again and again.
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Q1. Trail balance Corp chat
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Q2. Team handling situations based question
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Q1. What does S/4 HANA implementation involve?
Ans. 
S/4 HANA implementation involves migrating business processes to SAP's latest ERP system for improved efficiency and real-time analytics.
• Data migration from legacy systems to S/4 HANA

• Business process reengineering to align with S/4 HANA functionalities

• Customization and configuration of S/4 HANA modules

• Training employees on using the new system effectively

• Testing and validation of the implemented solution
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Q2. What is the process for setting up a master data set?
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Setting up a master data set involves identifying data sources, cleansing data, defining data attributes, and establishing data governance.
• Identify all relevant data sources that will be included in the master data set

• Cleanse the data to ensure accuracy and consistency

• Define data attributes such as data types, formats, and relationships

• Establish data governance policies and procedures to maintain data quality and integ
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Q1. Royalty process
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Q2. Intercompany pricing process
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Q1. Team handing Experience and salary discussion
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Q1. What's the CI/CD workflow that's followed in your team?
Ans. 
Our team follows a CI/CD workflow that includes automated testing, code reviews, and continuous integration.
• Automated testing is run on every code change to catch bugs early.

• Code reviews are conducted before merging changes to ensure code quality.

• Continuous integration is used to automatically build and test code changes in a shared repository.

• Deployment pipelines are set up to automate the release process.

• Version cont...read more
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Q2. Has there been any security incident and how have you handled those ?
Ans. 
Yes, there have been security incidents and I have handled them effectively.
• Implemented security protocols to prevent future incidents

• Conducted thorough investigation to identify the root cause

• Collaborated with IT team to strengthen security measures

• Communicated with stakeholders to ensure transparency and trust

• Provided training to employees on cybersecurity best practices
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Q3. Difference between authorization and authentication ?
Ans. 
Authentication verifies the identity of a user, while authorization determines what actions a user is allowed to perform.
• Authentication confirms the identity of a user through credentials like passwords or biometrics.

• Authorization determines the level of access or permissions a user has once their identity is confirmed.

• Authentication is the process of logging in, while authorization is the process of granting or denyin...read more
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Q4. LLD for an authentication and authorization system
Ans. 
LLD for an authentication and authorization system
• Separate modules for authentication and authorization

• Use of secure hashing algorithms for storing passwords

• Role-based access control implementation

• Audit logging for tracking user actions

• Integration with external identity providers
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Q1. Design a document managed storage like google drive as an E2E solution.
Ans. 
Design a document managed storage like Google Drive as an E2E solution.
• Implement user authentication and authorization for secure access.

• Create a user-friendly interface for uploading, organizing, and sharing documents.

• Include features like version control, file syncing, and search functionality.

• Utilize cloud storage for scalability and accessibility.

• Implement encryption for data security.

• Integrate with third-party app
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First round Aptitude + Technical questions on CS fundamentals

Q1. Frog jump Dynamic programming question
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Q2. Remove zeroes from a numbers only string and insert at last also maintain the relative order
Ans. 
Remove zeroes from a numbers only string and insert at last while maintaining relative order.
• Iterate through the string and separate numbers and zeroes

• Store numbers in an array and zeroes in a separate array

• Concatenate the numbers array with the zeroes array at the end
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Q3. One sql question on joins
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Q1. Tell me about yourself
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Q2. Why do you choose this place
Ans. 
I chose this place because of its reputation for providing excellent international voice process services.
• Reputation for excellent international voice process services

• Positive feedback from current employees

• Opportunities for growth and development

• Convenient location for commuting

• Positive work culture and environment
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Aptitude, logical Reasoning, English grammar.

Q1. Questions based on what you written in your resume.
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Q2. Well prepared your resume don't write anything that you don't know about your resume.
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Q1. Here you have to listen carefully what the system is saying in english.
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Q2. This is round will test your listening skills, How clearly you can read a sentence and your communication skills.
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It's a easy round. This round will be conducted through Microsoft teams. Just confident and expressive while speaking that's it.

Q1. How do you resolve critical issues?
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Q2. How do to handle stakeholder's interests?
Ans. 
Handle stakeholder's interests by understanding their needs, communicating effectively, and delivering results.
• Understand the stakeholders' needs and priorities

• Communicate regularly and effectively with stakeholders

• Involve stakeholders in decision-making processes

• Deliver results that align with stakeholders' interests

• Manage expectations and address concerns promptly
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SQL Rank functions.
Python easy to medium DSA programs.
Pyspark Concepts and questions.

Q1. Explain one of your projects in End to End
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Q1. What are some of the analytical functions available in SQL?
Ans. 
Analytical functions in SQL are used to perform calculations on sets of rows.
• Aggregate functions like SUM, AVG, COUNT, MIN, MAX

• Window functions like ROW_NUMBER, RANK, DENSE_RANK, LAG, LEAD

• Ranking functions like NTILE, PERCENT_RANK, CUME_DIST

• Statistical functions like STDDEV, VARIANCE

• String functions like CONCAT, SUBSTRING, TRIM
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