20+ Zeta Interview Questions and Answers

Key traits for an implementation analyst include attention to detail, problem-solving skills, technical proficiency, communication skills, and adaptability.

• Attention to detail: Ability to meticulously review and analyze data to ensure accuracy in implementation processes.

• Problem-solving skills: Capability to identify issues, troubleshoot problems, and find effective solutions.

• Technical proficiency: Proficiency in utilizing various software tools and systems to implement proje...read more

Designed restaurant facing module for Swiggy during launch

• Created a dashboard for restaurants to manage orders and menus

• Integrated a notification system for new orders and order updates

• Included a rating and review system for customers to provide feedback

• Implemented a payment gateway for easy transactions

• Added a feature for restaurants to track their earnings and sales data

Designing an open banking support platform for customers and financial institutions to resolve queries & problems.

• Conduct thorough research on the needs and pain points of customers and financial institutions in the open banking sector.

• Collaborate with stakeholders including government agencies, financial institutions, and technology partners to understand requirements and constraints.

• Design a user-friendly interface that allows customers and financial institutions to easily ...read more

Introduce personalized chatbot for Messenger; Offer premium subscription for advanced features

• Develop a chatbot that can understand user preferences and suggest relevant content

• Offer premium subscription for advanced features like scheduling messages, sending larger files, etc.

• Partner with businesses to offer exclusive deals and discounts to Messenger users

• Integrate Messenger with other social media platforms to increase user engagement

• Provide analytics and insights to busine...read more

Designing API modules for a social media product involves creating endpoints for user authentication, posting content, interacting with friends, and accessing user data.

• Identify key features of the social media product such as user profiles, posts, comments, likes, and messages.

• Create API endpoints for user authentication, allowing users to register, login, and manage their accounts.

• Develop endpoints for posting content, including text, images, videos, and links.

• Implement end...read more

For a large database, we will use a combination of relational and NoSQL databases such as MySQL and MongoDB.

• Utilize a combination of relational and NoSQL databases for flexibility and scalability

• MySQL for structured data and complex queries

• MongoDB for unstructured data and high volume of reads and writes

The minimum number of towers required to cover all houses.

• Iterate through the houses and find the maximum distance between any two adjacent houses.

• Divide this maximum distance by the range of each tower to get the minimum number of towers required.

• If there is a remainder, add one to the result.

• Return the minimum number of towers.

The APIs used for the loan process can include credit score APIs, bank verification APIs, and loan origination APIs.

• Credit score APIs: Used to assess the creditworthiness of the borrower.

• Bank verification APIs: Used to verify the bank account details provided by the borrower.

• Loan origination APIs: Used to facilitate the loan application and approval process.

• Payment processing APIs: Used for handling loan repayments.

• Document verification APIs: Used to verify the authenticity o...read more

Use a hierarchical query to find the number of employees under each manager.

• Use a recursive query to traverse the organizational hierarchy

• Count the number of employees under each manager

• Group the results by manager

HashSet is implemented using a hash table. Elements are not sorted in a HashSet.

• HashSet is implemented using a hash table data structure.

• Elements in a HashSet are not sorted, as they are stored based on their hash code.

• To sort elements in a HashSet, you can convert it to a List and then sort the List.

Documentation required in SDLC project management includes project charter, requirements document, design document, test plan, and user manual.

• Project charter: outlines project objectives, scope, and stakeholders.

• Requirements document: details functional and non-functional requirements.

• Design document: describes the architecture and design of the system.

• Test plan: outlines the testing approach, test cases, and criteria for success.

• User manual: provides instructions for end us...read more

Find minimum deletions to make a sequence sorted.

• Count the number of elements that are not in increasing order.

• Subtract the count from the length of the sequence to get the minimum deletions.

• Use dynamic programming to optimize the solution.

• Time complexity: O(nlogn) using binary search.

Design a system to manage people

• Identify the roles and responsibilities of people in the organization

• Create a database to store employee information

• Develop a user interface for employees to update their information

• Implement a system for managers to approve employee requests

• Integrate with payroll and benefits systems

• Ensure data security and privacy

Design a board game with different cell types and roll the dice to move on from cell to cell

• Create a board with various types of cells such as start, finish, bonus, penalty, teleport, etc.

• Players roll a dice to determine how many cells they move forward

• Each cell type has a different effect on the player's progress or score

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.

The current product follows a microservices architecture.

• The product is divided into multiple independent services.

• Each service has its own database and communicates with other services through APIs.

• The architecture allows for scalability and flexibility.

• Examples of services include user management, payment processing, and inventory management.

My strengths include strong analytical skills, excellent communication abilities, and a proven track record of delivering successful business solutions.

• Strong analytical skills - able to analyze complex data and identify key insights

• Excellent communication abilities - able to effectively communicate with stakeholders at all levels

• Proven track record of delivering successful business solutions - have led multiple projects to successful outcomes

Find the longest substring without repeating characters in an array of strings.

• Iterate through each string in the array

• Use a sliding window approach to track the longest substring without repeating characters

• Update the longest substring as you iterate through each character in the string

Design encompasses various disciplines such as UI, UX, and graphic design.

• UI design focuses on the user interface and interactions of a digital product.

• UX design focuses on the overall user experience and usability of a product.

• Graphic design involves creating visual content for both digital and print media.

• Each type of design plays a crucial role in creating a cohesive and user-friendly product.

• Examples: UI design for a mobile app, UX design for a website, graphic design for...read more

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.

IRR (Internal Rate of Return) is the rate at which the net present value of cash flows from an investment equals zero. NPV (Net Present Value) is the difference between the present value of cash inflows and outflows.

• IRR is used to evaluate the profitability of an investment by calculating the rate of return that makes the net present value of all cash flows equal to zero.

• NPV is a measure of the profitability of an investment by calculating the difference between the present v...read more