Cornerstone OnDemand Associate Software Engineer Interview Questions and Answers for Experienced

Q1. Two sum of an array
Ans. 
Find two numbers in an array that add up to a specific target value.
• Use a hashmap to store the difference between the target value and each element in the array.

• Iterate through the array and check if the current element's complement exists in the hashmap.

• Return the indices of the two numbers that add up to the target value.
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Q2. Stack balance parenthesis
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Q1. Is circular loop is there in a linkedList
Ans. 
No, a circular loop is not present in a linked list.
• A linked list does not have a circular loop by default.

• If a linked list has a circular loop, it is considered a circular linked list.

• Circular linked lists can be detected using Floyd's Cycle Detection Algorithm.
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Q2. How to identify the duplicates in circular linkedList
Ans. 
To identify duplicates in a circular linked list, use a hash set to keep track of visited nodes.
• Traverse the circular linked list while adding each node to a hash set.

• If a node is already in the hash set, it is a duplicate.

• Consider edge cases such as an empty list or a list with only one node.
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Time and Speed, Percentages, Averages, Ratio and Proportion, Time and Work etc.

Platform was Mettle Assessment, Topics were Tree and Binary Search

Work from office vs Work from Home

Q1. Multi-threading, Communication between thread, dynamic programming, trees, sorting techniques.
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Q2. What is TCP, UDP, Difference between TCP and UDP, Three way handshaking problem, socket programming, HTTP Protocol.
Ans. 
TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) are protocols used for data transmission over networks.
• TCP is a connection-oriented protocol that guarantees reliable delivery of data.

• UDP is a connectionless protocol that does not guarantee reliable delivery of data.

• The main difference between TCP and UDP is that TCP provides reliable, ordered, and error-checked delivery of data, while UDP does not.

• ...read more
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Q3. Write code to print bottom view of Binary Search Tree
Ans. 
Print the bottom view of a Binary Search Tree.
• Use a map to store the horizontal distance and the bottom-most node at that distance.

• Traverse the tree in level order and update the map with each node's horizontal distance and level.

• Print the nodes in the map in ascending order of their horizontal distance.
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Q1. Why you want to work from office
Ans. 
I believe working from the office allows for better collaboration and communication with colleagues.
• Better collaboration and communication with colleagues

• Opportunity for face-to-face interactions

• Easier access to resources and equipment

• Faster problem-solving through immediate discussions

• Building stronger relationships with team members
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Q2. Why should we hire you
Ans. 
I have the technical skills, experience, and passion for software engineering that make me a valuable asset to your team.
• I have a strong background in computer science and software development

• I have experience working on various software projects and have a proven track record of delivering high-quality code

• I am a quick learner and can adapt to new technologies and programming languages

• I am a team player and can effect...read more
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Q3. Tell any moment when you felt motivated and depressed at same time. etc
Ans. 
Yes
• When I received a promotion at work but also had to deal with the loss of a loved one

• When I achieved a personal goal but also faced criticism from others

• When I received positive feedback on a project but also experienced imposter syndrome
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1 hr test, simple aptitude questions

Simple coding questions

Q1. Reverse the string
Ans. 
Reverse a given string
• Iterate through the string from end to start and append each character to a new string

• Use built-in functions like reverse() in Python or StringBuilder.reverse() in Java

• Convert the string to an array, reverse the array, and convert it back to a string
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Q2. Basic Networking questions
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Q3. Questions on working of jvm
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Q1. Be prepared with your strength and weakness and just be yourself.
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2 questions Based on arrays level of medium

Q1. 2 questions based on array and linked list
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Q1. Question based on metrix
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Q1. Behavioural questions
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Machine learning advantages and disadvantage
hello world hello OWRLD2

Q1. What is u r name
Ans. 
My name is John Doe.
• Full name is John Doe

• Common first and last name combination

• No middle name provided
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Q2. What is salary expectation?
Ans. 
I am looking for a competitive salary based on my skills, experience, and the industry standard.
• Research the average salary for Associate Software Engineers in the industry

• Consider your level of experience and skills when determining your salary expectation

• Be prepared to negotiate based on the company's offer and benefits package
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Aptitude test will a hackerrank test where it might have technical MCQ and/or coding test.

Q1. Interviewer will test your logic building capability with puzzel/coding and technical questions and experience discussion.
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Q1. Its a normal discussion with HR about CTC and all.
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Round duration - 90 minutes
Round difficulty - Medium

It was Technical + Aptitude MCQ round.The technical section consisted if MCQ related to DSA,OS,DBMS.The aptitude section consisted of questions related to basic mathematics.

Q1. 
Candies Distribution Problem Statement
Prateek is a kindergarten teacher with a mission to distribute candies to students based on their performance. Each student must get at least one candy, and if two s...read more
Ans. 
The task is to distribute candies to students based on their performance while minimizing the total candies distributed.
• Create an array to store the minimum candies required for each student.

• Iterate through the students' ratings array to determine the minimum candies needed based on the given criteria.

• Consider the ratings of adjacent students to decide the number of candies to distribute.

• Calculate the total candies req...read more
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Round duration - 30 minutes
Round difficulty - Medium

It was a technical interview testing the basic skills of OS and DBMS of candidates along with few project discussions from your CV.

Q1. Can you write 15 Linux commands along with their functions?
Ans. 
List of 15 Linux commands with their functions
• ls - list directory contents

• pwd - print working directory

• cd - change directory

• mkdir - make a new directory

• rm - remove files or directories

• cp - copy files and directories

• mv - move or rename files and directories

• grep - search for patterns in files

• chmod - change file permissions

• ps - display information about running processes

• top - display and update sorted information about pr...read more
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Q2. What are DDL (Data Definition Language) and DML (Data Manipulation Language)?
Ans. 
DDL is used to define the structure of database objects, while DML is used to manipulate data within those objects.
• DDL includes commands like CREATE, ALTER, DROP to define database objects like tables, indexes, etc.

• DML includes commands like INSERT, UPDATE, DELETE to manipulate data within tables.

• Example of DDL: CREATE TABLE employees (id INT, name VARCHAR(50));

• Example of DML: INSERT INTO employees VALUES (1, 'John Doe
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