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Comcast India Engineering Center Software Development Engineer Interview Questions and Answers

Updated 5 May 2021

Comcast India Engineering Center Software Development Engineer Interview Experiences

1 interview found

I applied via Recruitment Consultant and was interviewed in Nov 2020. There were 3 interview rounds.

Interview Questionnaire 

4 Questions

  • Q1. Multiprocessing Topic
  • Q2. SQL Advanced
  • Q3. Sorting List without predefined methods
  • Ans. 

    Sorting array of strings without using predefined methods.

    • Implement bubble sort algorithm

    • Use insertion sort algorithm

    • Apply quick sort algorithm

    • Use merge sort algorithm

  • Answered by AI
  • Q4. Removing duplicate numbers from a list
  • Ans. 

    Removing duplicate numbers from an array of strings

    • Create a new empty array

    • Loop through the original array

    • Check if the current element exists in the new array

    • If not, add it to the new array

    • Return the new array

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - 3 rounds of interviews. Be confident. Learn advanced topics in Python/Django(for this position).

Skills evaluated in this interview

Interview questions from similar companies

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. About 1st project why you select this project what is the scope of the project.
  • Q2. Jumping array question regarding dp
Round 2 - Coding Test 

6 leetcode problem which 2 easy question 2 medium question 2 hard questiion

Interview Preparation Tips

Interview preparation tips for other job seekers - prepare for dsa hardely
Interview experience
4
Good
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via campus placement at KJ Somaiya Institute of Engineering and Information Technology and was interviewed before Jan 2023. There were 4 interview rounds.

Round 1 - Coding Test 

2-3 coding questions based on DSA

Round 2 - Aptitude Test 

It was a basic SHL test

Round 3 - Technical 

(1 Question)

  • Q1. Easy DSA and java related questions
Round 4 - HR 

(1 Question)

  • Q1. Typical HR round questions about career prospects

I applied via Referral and was interviewed in Mar 2020. There were 4 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. What is Data Integrity?
  • Ans. 

    Data Integrity refers to the accuracy and consistency of data throughout its lifecycle.

    • Ensuring data is not corrupted or modified without authorization

    • Maintaining data accuracy and consistency through proper storage and retrieval

    • Preventing data loss or unauthorized access

    • Examples: checksums, encryption, access controls

  • Answered by AI
  • Q2. Gave an example and asked to produce that output with a query.
  • Q3. Questions like difference between union and union all. The function of cursor. Basic query tuning questions. Index, triggers etc

Interview Preparation Tips

Interview preparation tips for other job seekers - The interview happened during the lockdown period, so it was virtual Teams meeting. I had 2 technical rounds and one Managerial round. The interviewers were quite friendly and explained everything crystal clear. Since this was a SQL post, I would suggest you to get the basics intact and try practicing few queries.

Interview Preparation Tips

Round: Test
Experience: This round had a total of 22 questions, in which 20 questions were from aptitude and reasoning. The level of aptitude questions were good. The questions were a mixture of easy, moderate and difficult levels. Remaining 2 questions were coding questions, in which one question was easy and another one was a bit difficult. This round was mainly to check the basic understanding and thinking power.
Tips: Aptitude and reasoning could be prepared in a short time. But coding takes a lot time. So focus more on coding than aptitude and reasoning. Aptitude and reasoning questions just take a combination of little common sense and computation power. While coding takes a lot of things, eg - Data structures, algorithms, programming languages, mathematics, common sense, computation power.
Duration: 1 hour 30 minutes
Total Questions: 22

Round: Technical Interview
Experience: This round was a total of 1 hour and 30 minutes. First of all, I was asked to introduce myself. I introduced myself then the interviewer also shared his work experience and he had worked at Snapdeal for five years. The questions asked were from the

College Name: NIT Hamirpur
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected
Round 1 - Group Discussion 

The first round was a group discussion about online shopping.

Round 2 - Technical 

(1 Question)

  • Q1. What questions did the interviewer ask is related to the Java programming language
Round 3 - One-on-one 

(1 Question)

  • Q1. Discussed about General questions related to Company and personal details
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
-
Result
Selected Selected
Round 1 - Technical 

(1 Question)

  • Q1. JavaScript , coding questions
Round 2 - Technical 

(1 Question)

  • Q1. Coding problem, JavaScript and nodejs question
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Aptitude Test 

Although it was quite challenging.

Round 2 - Coding Test 

Complete it without significant difficulty.

Round 3 - Technical 

(2 Questions)

  • Q1. Can you describe the projects you have worked on?
  • Q2. What is the code for printing prime numbers?
Round 4 - HR 

(2 Questions)

  • Q1. What motivates you to want to join Ion?
  • Q2. What makes you a suitable candidate for this position?

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare in advance by researching the interview experiences of the company to which you are applying. The Ambition Box was very helpful to me in this regard.
Interview experience
1
Bad
Difficulty level
Easy
Process Duration
-
Result
Selected Selected

I was interviewed in Dec 2024.

Round 1 - Coding Test 

Mainly 4 Questions
1-2 MCQ
3: Create a class deriving from IReptile and return an object of HatchEgg which has Hatch Method. Hatch Method should return same IReptile object.
4) Sorting IDs in dictionary

Round 2 - Technical 

(2 Questions)

  • Q1. The Interviewer was Very Rude and he doesn't care about the Requirements of Hiring a candidate. he was constantly asking about Other Companies Architectures and The things you did in them. instead of havin...
  • Q2. SOLID, Interfaces , Boxing/Unboxing

Interview Preparation Tips

Interview preparation tips for other job seekers - Stay away from this company. very toxic
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
-

I applied via Referral and was interviewed in Sep 2024. There were 2 interview rounds.

Round 1 - Technical 

(4 Questions)

  • Q1. Find longest palindromic substring in a given string.
  • Ans. 

    Use dynamic programming to find the longest palindromic substring in a given string.

    • Iterate through the string and expand around each character to find palindromes.

    • Store the length of the longest palindrome found so far.

    • Return the substring based on the start and end indices of the longest palindrome.

  • Answered by AI
  • Q2. How to serialize and deserialise a tree
  • Ans. 

    To serialize and deserialize a tree, use a recursive approach to traverse the tree and store the data in a suitable format.

    • Use pre-order traversal to serialize the tree by storing the node values in a list or string.

    • For deserialization, reconstruct the tree by recursively building nodes from the serialized data.

    • Consider using JSON or XML format for serialization to easily store and retrieve tree structure.

  • Answered by AI
  • Q3. Find if a given regex (containing ., * and lower case english chars) matches a given string.
  • Ans. 

    Use regex library to match given regex with string.

    • Use a regex library like re in Python to match the given regex with the string.

    • Check if the regex matches the string using the library functions.

    • Handle cases where the regex contains special characters like . and * appropriately.

  • Answered by AI
  • Q4. Explain about throttling and implement throttle function.
  • Ans. 

    Throttling is a technique used to control the rate of requests sent to a server.

    • Throttling helps prevent server overload by limiting the number of requests processed at a time.

    • Implementing a throttle function involves setting a maximum request rate and delaying excess requests.

    • Example: Implementing a throttle function in a web application to limit the number of API calls made to a third-party service.

    • Example: Throttlin...

  • Answered by AI
Round 2 - Technical 

(4 Questions)

  • Q1. Find squares of elements in a sorted array and return the sorted response.
  • Ans. 

    Sort the squares of elements in a sorted array and return the sorted response.

    • Iterate through the array and square each element.

    • Store the squared values in a new array.

    • Sort the new array and return it.

  • Answered by AI
  • Q2. Write a short promise example and implement your own promise
  • Ans. 

    A promise is a commitment to do something in the future, typically used for asynchronous operations in JavaScript.

    • Promises are used to handle asynchronous operations in JavaScript.

    • They represent a value that may be available now, in the future, or never.

    • Promises have three states: pending, fulfilled, or rejected.

    • Example: new Promise((resolve, reject) => { setTimeout(() => resolve('Done!'), 1000); });

  • Answered by AI
  • Q3. Explain event loop, what are different types of queues in event loop
  • Ans. 

    Event loop is a mechanism that allows for asynchronous execution of code by managing the order of events in a single thread.

    • Event loop continuously checks the call stack for any functions that need to be executed, and processes them in a non-blocking manner.

    • Different types of queues in event loop include microtask queue (Promise callbacks), macrotask queue (setTimeout, setInterval callbacks), and animation frame queue

  • Answered by AI
  • Q4. What is virtual DOM and why its faster
  • Ans. 

    Virtual DOM is a lightweight copy of the actual DOM, used to improve performance by minimizing direct manipulation of the real DOM.

    • Virtual DOM is a concept used in frameworks like React to optimize rendering performance.

    • Changes are first made to the virtual DOM, which is then compared to the real DOM to identify the minimal updates needed.

    • This approach reduces the number of actual DOM manipulations, resulting in faster...

  • Answered by AI

Interview Preparation Tips

Topics to prepare for ServiceNow Senior Software Engineer interview:
  • React.Js
  • Javascript
  • DSA

Skills evaluated in this interview

Comcast India Engineering Center Interview FAQs

What are the top questions asked in Comcast India Engineering Center Software Development Engineer interview?

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