Zeta Interview Questions, Process, and Tips

Q1. Describe your past experience and projects.
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Q2. Rapid-fire questions spanning multiple areas like system design, CSS, JS, React, performance. Interview duration for all these questions was 30 min.
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Q1. 8 SQL Question, difficulty leetcode medium to hard, cannot remember exact questions
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Q1. Question on Work experience, project, technology stack
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Q2. More than 5 SQL hard-medium Questions in 1 hour, the faster you solve the more question the interviewer will ask and higher will be your chances to move to next round
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2 Case Study on payment apps and payment infrastructure, 2 guesstimate

Q1. Director took company fit round
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Q2. Why you want to zeta? What does zeta do? why do you want to leave your current job?
Ans. 
I want to join Zeta because of its innovative solutions in the fintech industry. I am looking for new challenges and opportunities for growth.
• Interested in Zeta's innovative solutions in the fintech industry

• Seeking new challenges and opportunities for growth

• Current job lacks growth opportunities
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Q1. K8s Architecture
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Q2. Banking Domain, Card Transaction Life Cycle
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An assignment to make an image listing app from API using Volley/Retrofit and second screen to display the image. Used recyclerview, glide , volley etc. It was done to be in 2 hour.

Q1. The second was Android technical discussion round. The assignment was discussed. Why i used recyclerview, questions related to recyclerview, some questions on networking, what happens when we hit google.co...read more
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Q2. Why recyclerview is performant dns etc.
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Q3. What happens when we hit google.com in browser , behind the scenes
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In 1 hour i was asked to solve two easy DS question
1. Merge the two sorted arrays
2. rotated binary search

Q1. Hiring manager round with manager, system design questions,
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Q2. 1. Design whatsapp 2. Design chess game (intellij java) 3. React native vs native android , 4. Basic hr question
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Its kind of Geometry question, they asked me to code
but i kind of forget basic like, in coding they asked me geometry and not able to think of solution so it went bad

Q1. Longest Valid Parentheses
Ans. 
Find the length of the longest valid parentheses substring in a given string.
• Use a stack to keep track of the indices of opening parentheses.

• Iterate through the string and update the maximum length of valid parentheses.

• Handle cases where closing parentheses are encountered without a matching opening parentheses.
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Q2. Find the maximum number in the subarrays of length k.
Ans. 
Find the maximum number in the subarrays of length k.
• Iterate through the array and keep track of the maximum number in each subarray of length k.

• Use a sliding window approach to efficiently find the maximum number in each subarray.

• Time complexity can be optimized to O(n) using a deque data structure.
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Q1. Spiral Matrix Question
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