Citizens Bank Senior Architect Interview Questions and Answers

DSA questions lettcode easy and medium

Q1. Rotate and image by 90 degree
Ans. 
To rotate an image by 90 degrees, transpose the image matrix and then reverse each row.
• Transpose the image matrix by swapping elements across the diagonal

• Reverse each row of the transposed matrix
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Q2. Print cousin nodes
Ans. 
Print cousin nodes in a tree structure
• Traverse the tree to find the parent node of the given node

• Find all the children of the parent node except the given node

• Print the names of the cousin nodes
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Q1. Design google drive
Ans. 
Design a cloud storage service like Google Drive
• Implement user-friendly interface for uploading, organizing, and sharing files

• Provide seamless integration with other Google services like Gmail and Google Docs

• Ensure robust security measures to protect user data

• Offer scalable storage options for individuals and businesses

• Enable offline access and synchronization across devices
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Q2. Follow up questions on LLD/HLD
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Q1. Past project related questions
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Q2. Mostly checking the fitment
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Online test for 1 hr

Tree implementation : search, add

Q1. Design pattern used
Ans. 
The design pattern used is the Singleton pattern.
• Ensures a class has only one instance and provides a global point of access to it

• Commonly used in scenarios where only one instance of a class is needed, such as database connections or logging

• Implemented by creating a static method to return the same instance of the class each time it is called
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Q2. Design project and classes
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Q1. Current project
Ans. 
Currently leading a cross-functional team in developing a new product launch strategy.
• Leading a cross-functional team

• Developing a new product launch strategy

• Ensuring alignment with company goals and objectives
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Q2. Discussion on prod
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Q1. Onshore manager - Self Intro, day job briefing, basics of finance - stocks, bonds, corporate action, alternative investments (close end & open end mutual funds, ETF, private equity), basic SQL tricky quest...read more
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Q1. Offshore manager - Self intro, day job, project management, projects led by the individual, reason for change, tricky SQL questions.
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Q1. Director - Just a causal discussion.
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Q1. Some questions on Joins and SQL performance tuning Data modelling questions. Relational vs Dimentional modelling.
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Q2. Second round was focused on Projects i have done. and the interviewer start questioning on the challenges faced during the projects. also some cross questions on why a particular approach was chosen oven ...read more
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Q3. Director level round: asked my the reason for change and the technologies i have worked on.
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Q4. Final HR round where HR asked my strength and weakness and asked for what is my salary expectation.
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Coding related to palindrome and finding two pairs of numbers from a list whose sum is x.

Q1. Questions on OOPs concepts, DI, Performance tuning, etc.
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Q1. Interview around cultural fit, which will probe on your attitude to look at problems and handing of events in the past.
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Q1. Challenges faced n career
Ans. 
I have faced challenges in managing diverse teams, adapting to new technologies, and meeting tight deadlines.
• Managing diverse teams with different work styles and communication preferences

• Adapting to new technologies and processes to stay competitive in the industry

• Meeting tight deadlines while ensuring quality work and team morale

• Balancing multiple projects and priorities effectively
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Q2. Achievements of career
Ans. 
Successfully led cross-functional teams to launch multiple new products, resulting in 20% increase in revenue.
• Led cross-functional teams to successfully launch new products

• Achieved a 20% increase in revenue through product launches

• Implemented strategic marketing campaigns to drive product adoption

• Received recognition for outstanding leadership and project management skills
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Q1. Scenario based questions beahvioural
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Q2. Scenario based questions for Project Management
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Q1. Why are you looking for change
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Q2. What does ur day look like
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Q3. What is your qualifications
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Q4. What do you know about the company
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Q5. What us your salary expectations
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