Sequoia Group Software Development Engineer Interview Questions and Answers

5 coding questions, 2-medium and 3 easy - medium

Q1. Linked List Concept
Add your answer
Q2. DSA: prime no. or not optimal approach
Ans. 
Optimal approach for checking if a number is prime or not using DSA
• Optimal approach for checking prime numbers is to iterate up to square root of the number

• Use trial division method to check divisibility by numbers up to square root of the number

• Time complexity of this approach is O(sqrt(n))
Answered by AI
Add your answer
Q3. Class, object with real time examples
Ans. 
A class is a blueprint for creating objects, which are instances of the class. Objects have attributes and behaviors.
• Classes define the structure and behavior of objects.

• Objects are instances of classes and have their own unique attributes and behaviors.

• Example: Class 'Car' with attributes like 'color' and behaviors like 'drive'. Object 'myCar' is an instance of 'Car' with color 'red' and can drive.

• Example: Class 'Pers...read more
Answered by AI
Add your answer
Q4. SQL types of normal forms
Ans. 
SQL normal forms are levels of organization for relational databases to reduce redundancy and improve data integrity.
• First normal form (1NF) - Eliminate repeating groups and ensure each column contains atomic values.

• Second normal form (2NF) - Meet 1NF requirements and have all non-key attributes fully functionally dependent on the primary key.

• Third normal form (3NF) - Meet 2NF requirements and have no transitive depend...read more
Answered by AI
Add your answer

Q1. About Projects and contribution in that
Add your answer
Q2. Managerial Questions
Add your answer

Q1. I am freshers soo please one chance for your company
Add your answer
Q2. Yes I am fresher soo for your company work
Add your answer
Q3. Talk about a range of elements, including customer service.
Ans. 
Customer service is an essential element in software development.
• Customer service involves providing support and assistance to users of software applications.

• It includes addressing user queries, resolving issues, and ensuring customer satisfaction.

• Software developers may interact with customers through various channels like email, phone, or live chat.

• Good customer service can lead to positive user experiences and incre...read more
Answered by AI
Add your answer

Q1. Challenges in development
Ans. 
Challenges in development include managing project timelines, debugging complex issues, and staying updated with new technologies.
• Managing project timelines to ensure timely delivery of software

• Debugging complex issues that arise during development

• Staying updated with new technologies and tools to remain competitive in the industry
Answered by AI
Add your answer
Q2. Why Allianz, why leaving from current company
Add your answer

String and arrays duplicate and sorting questions

Q1. Project details
Add your answer
Q2. Project deployment
Add your answer

Q1. Previous company details
Add your answer
Q2. CTC discussion and company review
Add your answer

Reasoning and aptitude question

Q1. Coding related question
Add your answer

Normal apti question

Linear data structure

Round duration - 60 minutes
Round difficulty - Easy

It was an online one on one call that was taken. Like many others, even i too got formal and straight forward with my interviewers. It was pretty good despite the connectivity issues. I have gained by the way they were asking me questions as the nature of the call was quite amicable. It was pretty good as it was during the day for me.

Q1. Longest Common Subsequence
Given two strings, 'S' and 'T' with lengths 'M' and 'N', find the length of the 'Longest Common Subsequence'.
For a string 'str'...read more
Ans. Memoization
Let the two strings be x and y. 
Let x(i) be the substring of x from index 0 to index i. 
Let c[i, j] be the length of the longest common subsequence of strings x(i) and y(j).
Then the recurrence relation to find c[i, j] is as follows:
We can use this relation to write a simple recursive program but instead of recomputing the results of subproblems, compute them just once and store their results in a l...read more
Answered Anonymously
Add your answer

Round duration - 60 minutes
Round difficulty - Easy

It was during the night. I was to attend an one on one interview. Though it was a shaky start in the beginning, sporadically i picked up. The affable nature of the interviewer made me feel special and comfortable. He not only asked me normal interview questions but also took me through the technical aspects of an interview and i could get them all!

Q1. Count Subsequences
You have been given an integer array/list 'ARR' of size 'N'. Your task is to return the total number of those subsequences of the array in which all the elements are equa...read more
Ans. 
Step 1 : I first applied bubble sort. It was not good enough.
Step 2 : Interviewer asked me to optimise the solution.
Step 3 : Then I gave solution with merge sort and interviewer was happy.
Answered Anonymously
Add your answer