ACT Fibernet Senior Software Engineer Interview Questions and Answers

1. Reversing a linked list.
2. Find all substrings in a string.

Q1. Oops Concepts, DBMS, Array Manipulation, Design Patterns.
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Q2. System Design- Design an online food delivery platform
Ans. 
Design an online food delivery platform
• Identify target audience and their needs

• Create a user-friendly interface for ordering food

• Develop a robust backend system for managing orders and deliveries

• Partner with local restaurants to offer a wide variety of cuisines

• Implement a payment gateway for secure transactions

• Provide real-time order tracking for customers

• Ensure food safety and quality through proper packaging and deli...read more
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Q1. Technical Interview + Coding
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Q1. Technical Interview
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Coding test data structures and language related

Q1. Related to resume technology
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Q1. Find nth elements from last in linked list
Ans. 
Use two pointers to find the nth element from the end of a linked list.
• Use two pointers, one moving n steps ahead of the other

• When the first pointer reaches the end, the second pointer will be at the nth element from the end
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Q2. Difference between hashmap and concurrent hashmap
Ans. 
HashMap is not thread-safe while ConcurrentHashMap is thread-safe and allows concurrent access.
• HashMap is not thread-safe and can lead to ConcurrentModificationException if accessed by multiple threads simultaneously.

• ConcurrentHashMap allows concurrent access by multiple threads without the need for external synchronization.

• ConcurrentHashMap achieves thread-safety by dividing the map into segments, allowing multiple th...read more
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Simple question from python list operations

Q1. With Manager regarding what is job about.
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Q2. What you did in your last project
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Q1. Project owner about what you are going to do.
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Q1. Easy and fast going process
Ans. 
Easy and fast going process
• Define clear goals and objectives

• Streamline communication channels

• Implement agile methodologies

• Automate repetitive tasks

• Regularly review and optimize processes
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Q1. Your aspirations and reason for job change.
Ans. 
Seeking new challenges and opportunities for growth in a dynamic environment.
• Looking to expand my skill set and take on more responsibilities

• Interested in working on cutting-edge technologies and projects

• Seeking a company culture that values innovation and collaboration
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