Comcast Software Engineer Intern Interview Questions and Answers

Some basic level of dsa questions like sorting and reverse a linked list and some javascript question

Q1. It was totally based on your project and resume
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Q1. Sort linkedlist
Ans. 
Sort a linked list
• Use merge sort or quick sort for efficient sorting

• Implement a sorting algorithm that works well with linked lists

• Consider the time and space complexity of the sorting algorithm
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Q1. How to handle exception?
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Handle exceptions by using try-catch blocks to gracefully manage errors in code execution.
• Use try-catch blocks to catch exceptions and handle them appropriately.

• Throw custom exceptions when necessary to provide more specific error information.

• Use finally block to execute code that should always run, regardless of whether an exception is thrown.

• Avoid catching generic exceptions like Exception class, instead catch specif...read more
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Q2. What is inheritance?
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Inheritance is a concept in object-oriented programming where a class can inherit attributes and methods from another class.
• Allows for code reusability by creating a new class based on an existing class

• Derived class inherits properties and behaviors of the base class

• Supports the 'is-a' relationship, where a derived class is a specialized version of the base class
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Questions were asked

Dsa dp, graphs and many more questions from arrays and linked list were asked

General aptitude questions on Cocubes Platform of 60 minutes

Q1. DSA question on strings and linked list
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Q2. Projects and Resume Discussion
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Q3. Puzzle (Two bulbs)
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Q4. OOP concepts - pillars of OOP
Ans. 
The pillars of OOP are encapsulation, inheritance, and polymorphism.
• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Inheritance: Allowing a new class to inherit properties and behavior from an existing class.

• Polymorphism: The ability for objects of different classes to respond to the same message in different ways.
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Q1. Techno-Managerial Round (Discussion on Projects and Resume)
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Q2. Details of previous internships and about the offered role
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Q1. General HR questions about introduction and compensation discussion
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Simple aptitude test

Window slider on a stack/queue

Basi aptitude and coding mcq

Q1. What is hashmap
Ans. 
HashMap is a data structure that stores key-value pairs and allows for fast retrieval of values based on keys.
• HashMap is part of the Java Collections framework.

• It uses hashing to store and retrieve elements efficiently.

• Keys in a HashMap must be unique, but values can be duplicated.

• Example: HashMap<String, Integer> map = new HashMap<>();
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Q1. Coin change problem and loop in linked list
Ans. 
Coin change problem involves finding the minimum number of coins required to make a given amount of change. Loop in linked list is a traversal technique.
• Coin change problem can be solved using dynamic programming approach

• Loop in linked list can be implemented using a while loop or a for loop

• Coin change problem can be extended to include finding the actual coins used to make the change

• Loop in linked list can be used to ...read more
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Q1. Valid parenthesis and min stack problem
Ans. 
Valid parenthesis and min stack problem
• Valid Parenthesis problem involves checking if a given string of parentheses is valid or not

• Min Stack problem involves designing a stack that supports push, pop, top, and retrieving the minimum element in constant time

• Both problems can be solved using stack data structure

• Valid Parenthesis problem can be solved by pushing opening brackets onto the stack and popping them when a clos...read more
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Q1. Show your confidence about tech skills.
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Q1. Salary discussion and Normal HR questions
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