Zeta Software Development Engineer II Interview Questions, Process, and Tips

Q1. HashSet Internal Implementation and sort the elements in a hashset
Ans. 
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.
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Q2. Find number of employees under every manager, coding
Ans. 
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
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Round : DSA
Duration : 1 hr
No. of Questions : 1 (medium - hard LC)
type : F2F
tool : Google Docs

Round : LLD
Duration : 1hr30mins
No.of Questions : 1 (medium)
type : F2F
tool : any IDE
(for me, Vehicle parking was asked)

Q1. Round : HM Duration : 1hr General discussion on current work & quick LLD question for which pseudo code & design was asked
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Q2. Design People Management system
Ans. 
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
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Q3. Architecture of the current product
Ans. 
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.
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