American Express Interview Questions, Process, and Tips

Case study asked in Managerial Interview - Tell percentage of office going people in Gurgaon?

Q1. How to design scalable system
Ans. 
Designing a scalable system involves considering factors like load balancing, horizontal scaling, and fault tolerance.
• Utilize load balancing to distribute traffic evenly across servers.

• Implement horizontal scaling by adding more servers to handle increased load.

• Ensure fault tolerance by designing for redundancy and failover mechanisms.

• Use caching and database sharding to improve performance and scalability.

• Consider mic...read more
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Q2. How to debug and optimize code
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Debugging and optimizing code involves identifying and fixing errors and improving performance.
• Use debugging tools like breakpoints, print statements, and logging to identify issues

• Analyze code for inefficiencies and refactor where necessary

• Optimize algorithms and data structures for better performance

• Profile code to identify bottlenecks and optimize critical sections

• Test changes to ensure they improve performance with
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Q1. Introduce yourself
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Q2. How to convince customer to pay more
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Convince customers to pay more by highlighting the value of the product/service, offering discounts for early payment, and providing flexible payment options.
• Highlight the value of the product/service and how it meets the customer's needs

• Offer discounts for early payment to incentivize prompt payment

• Provide flexible payment options such as installment plans or payment extensions

• Emphasize the benefits of paying more, su...read more
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Q3. Mock call/scenario
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Q1. Introduce yourself
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Q2. Previous company experience
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Q3. Collections questions/scenarios
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Q1. General introduction and overall experience
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Q2. Communication skills
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Q1. Experience in total, explain previouse role,, product knowledge
Ans. 
I have 5 years of experience as a Senior Customer Service Advisor with extensive product knowledge in telecommunications.
• Managed a team of customer service representatives to ensure high levels of customer satisfaction

• Provided in-depth product knowledge training to new hires and existing team members

• Handled escalated customer complaints and resolved issues in a timely and efficient manner

• Collaborated with product devel...read more
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Q1. Scenario based questions
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Q1. SQL Query of case when then statement
Ans. 
SQL query using CASE WHEN THEN statement
• Use CASE WHEN statement to create conditional logic in SQL queries

• Syntax: SELECT column_name, CASE WHEN condition1 THEN result1 WHEN condition2 THEN result2 ELSE result3 END AS new_column_name FROM table_name

• Example: SELECT name, CASE WHEN age < 18 THEN 'Minor' ELSE 'Adult' END AS age_group FROM customers
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Q2. SQL Query of join
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SQL query to join tables based on a common key
• Use JOIN keyword to combine rows from two or more tables based on a related column between them

• Specify the columns to be joined in the ON clause

• Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN
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