Zeta Lead Engineer Interview Questions and Answers

Q1. Domain knowledge and projects
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Q1. Domain knowledge and projects
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Q1. How does a cell communicates between 2 sites.
Ans. 
Cells communicate between 2 sites through various signaling pathways, including direct cell-to-cell contact and chemical signaling.
• Cells can communicate through direct cell-to-cell contact, such as gap junctions or cell adhesion molecules.

• Cells can also communicate through chemical signaling, such as paracrine signaling (local signaling) or endocrine signaling (long-distance signaling).

• Examples include neurotransmitter...read more
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Q2. L3 layer details
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Q1. DSA problem to find the count of characters in a string
Ans. 
Use a hashmap to count the occurrences of each character in the string.
• Create a hashmap to store character counts

• Iterate through the string and update counts in the hashmap

• Return the hashmap with character counts
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Q2. VOiP related questions
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Q1. Abstraction and interface
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Q2. Authentication and authorisation
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Q1. Have you worked on swift
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Q2. What is a class
Ans. 
A class is a blueprint for creating objects in object-oriented programming.
• Classes define the properties and behaviors of objects.

• Objects are instances of classes.

• Classes can inherit properties and behaviors from other classes.

• Encapsulation, inheritance, and polymorphism are key concepts in class-based programming.
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Q1. Write code for star paattern
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Code for star pattern using nested loops
• Use nested loops to print the desired pattern

• Outer loop controls the number of rows and inner loop controls the number of stars in each row

• Example: for a pattern with 5 rows, the code would involve two nested loops to print stars in a pyramid shape
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Q2. What is linked list
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A linked list is a data structure where each element is a separate object, connected to the next element by a pointer.
• Consists of nodes where each node contains data and a reference to the next node

• Dynamic in size and can grow or shrink during execution

• Common operations include insertion, deletion, and traversal

• Example: Singly linked list, Doubly linked list, Circular linked list
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Q3. Differnce between public private
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Public and private sectors differ in ownership, funding, and management.
• Public sector is owned and operated by the government, while private sector is owned and operated by individuals or companies.

• Public sector is funded by taxpayer money, while private sector is funded by investors or owners.

• Public sector is managed by government officials, while private sector is managed by business owners or executives.
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Q4. Whats is oops and protcols
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OOPs stands for Object-Oriented Programming and protocols are a set of rules for communication between devices.
• OOPs is a programming paradigm that uses objects and classes to design applications.

• Protocols are a set of rules that define how data is transmitted between devices.

• In OOPs, objects have attributes and methods that define their behavior.

• Examples of OOPs languages include Java, C++, and Python.

• Examples of proto
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Q1. Total time waste quesrtions
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Q2. Basic programing questions as em was having very less knowledge
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Q1. API Integration
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Q2. SDK Integration
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Q3. Website, Android and iOS framework knowledge and development experience
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SDK integration Related

Q1. Expectation on CTC
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Q2. Base location and expected date to Join
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Online coding test with questions varies from basic python, SQL to Data Engg. fundamentals

Q1. Spark, python, SQL and Data Engg. questions
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Q1. Salary Negotiation and expectations
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Q1. Domain knowledge and projects
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Q1. Domain knowledge and projects
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Depends what you write in your CV

Q1. CV related question
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Q1. Salary discussion
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