OneCard Product Manager Interview Questions and Answers

Q1. Personal and Professional History
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Q1. Questions about past work-ex
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Q2. Guesstimate on no. of people using metro in a day
Ans. 
Approximately 5 million people use the metro daily in a large city like New York or Tokyo.
• Consider the population of the city where the metro operates

• Look at the ridership data provided by the metro authority

• Factor in peak hours and off-peak hours

• Take into account special events or holidays that may affect ridership
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Should Flipkart sell car tyres on their platform?

Q1. Basics and general
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Q2. All general once only
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Easy coding questions DSA

Q1. Reverse a linked list
Ans. 
Reverse a linked list by changing the pointers direction
• Start with three pointers: current, previous, and next

• Iterate through the linked list, updating the pointers to reverse the direction

• Update the head pointer to point to the new first node
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Q2. Find middle of linked list
Ans. 
To find the middle of a linked list, use the slow and fast pointer technique.
• Initialize two pointers, slow and fast, both pointing to the head of the linked list.

• Move slow pointer by one step and fast pointer by two steps until fast reaches the end of the list.

• The position of the slow pointer will be the middle of the linked list.
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Q1. Pick from a basket of oranges
Ans. 
The question is asking to pick an orange from a basket.
• Carefully select a ripe orange without any bruises or blemishes

• Gently twist the orange off the stem to avoid damaging the fruit

• Check for firmness and weight to determine ripeness
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Build a typeahead component

Q1. Build a form for personal details
Ans. 
Build a form for personal details
• Include fields for name, email, phone number, address, date of birth

• Use input fields, dropdowns, and date pickers for user input

• Add validation for required fields and correct formats

• Consider user experience with clear labels and easy navigation
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Q2. Add validations to different fields
Ans. 
Implement validations for different fields in software development.
• Identify the fields that require validation such as email, password, phone number, etc.

• Use regular expressions to validate input data format.

• Implement client-side and server-side validations to ensure data integrity.

• Display error messages for invalid input to guide users on correct data entry.
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It was simple program of url shorting for registered and non registered users each request must have unique shortened url.

Q1. Palindrome implementation and run time
Ans. 
A palindrome is a word or phrase that reads the same backward as forward. Implementing it involves comparing the first and last characters and iterating towards the middle.
• Implement a function that takes a string as input and returns true if it is a palindrome, false otherwise.

• Use two pointers, one starting from the beginning and the other from the end, and compare the characters at each position.

• If the characters matc...read more
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Q2. DSA and various algorithms and run time
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Q1. This round was one on one with VP of engineering. Basic q and a regarding role and responsibilities
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Q1. Relocation, Reason For job change, future plan, careers objective
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Q1. Basic questions on data structures
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Q1. Second round was Managerial Round. The interviewer basically had a conversation with me and asked some hr questions also.
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Q1. Basic HR questions
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