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Dell Developer Interview Questions and Answers

Updated 31 May 2021

Dell Developer Interview Experiences

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Developer Interview Questions & Answers

user image Anonymous

posted on 31 May 2021

I applied via LinkedIn and was interviewed in May 2021. There was 1 interview round.

Interview Questionnaire 

1 Question

  • Q1. General

Interview Preparation Tips

Interview preparation tips for other job seekers - Confidence

Interview questions from similar companies

I applied via Naukri.com and was interviewed in Jan 2021. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Oops concepts, Exception Handling & other Core Java concepts

Interview Preparation Tips

Interview preparation tips for other job seekers - Search & Contact recruiters who hire for ur domain on LinkedIn & share ur resume with them, search relevant jobs on LinkedIn & apply.

Go to companies' websites & create ur profile.

Update ur profile daily on naukri. 👍🏻

Interview Questionnaire 

1 Question

  • Q1. In C# --> Abstraction, Interface , Abstract Method, Abstract Class, Polymorphisms, Encapsulation ,Inheritance, Serialization,
  • Ans. 

    C# concepts including abstraction, interface, abstract method, abstract class, polymorphism, encapsulation, inheritance, and serialization.

    • Abstraction: hiding implementation details

    • Interface: defining a contract for behavior

    • Abstract method: method without implementation

    • Abstract class: class with one or more abstract methods

    • Polymorphism: ability of objects to take on multiple forms

    • Encapsulation: bundling data and behavi...

  • Answered by AI

Skills evaluated in this interview

I was interviewed before Feb 2021.

Round 1 - Coding Test 

(2 Questions)

Round duration - 70 Minutes
Round difficulty - Medium

This round had 40 MCQ's followed by 2 questions of DS and Algo. The programming questions were preety standard and can be solved within 30 minutes.

  • Q1. 

    Maximum Subarray Sum Problem Statement

    Given an array arr of length N consisting of integers, find the sum of the subarray (including empty subarray) with the maximum sum among all subarrays.

    Explanation...

  • Ans. 

    Find the sum of the subarray with the maximum sum among all subarrays in a given array.

    • Iterate through the array and keep track of the maximum sum subarray seen so far.

    • Use Kadane's algorithm to efficiently find the maximum subarray sum.

    • Handle cases where all elements are negative or array is empty.

    • Example: For input arr = [-2, 1, -3, 4, -1], the maximum subarray sum is 4.

  • Answered by AI
  • Q2. 

    Remove Character from String Problem Statement

    Given a string str and a character 'X', develop a function to eliminate all instances of 'X' from str and return the resulting string.

    Input:

    The first lin...
  • Ans. 

    Develop a function to remove all instances of a given character from a string.

    • Iterate through the string character by character and only add characters that are not equal to the given character to a new string.

    • Alternatively, use built-in string manipulation functions to remove all instances of the given character from the string.

    • Ensure the function handles edge cases such as empty strings or strings with no instances o...

  • Answered by AI
Round 2 - Face to Face 

(7 Questions)

Round duration - 60 Minutes
Round difficulty - Medium

This round had questions from DSA, OS, DBMS and Computer Networks. The programming question was quiet easy and I coded it preety fast after discussing the appropriate approach and complexity analysis.

  • Q1. 

    Intersection of Linked List Problem

    You are provided with two singly linked lists containing integers, where both lists converge at some node belonging to a third linked list.

    Your task is to determine t...

  • Ans. 

    Find the node where two linked lists merge, return -1 if no merging occurs.

    • Traverse both lists to find their lengths and the difference in lengths

    • Move the pointer of the longer list by the difference in lengths

    • Traverse both lists simultaneously until they meet at the merging point

  • Answered by AI
  • Q2. Can you explain the concepts of multitasking and multiprogramming?
  • Ans. 

    Multitasking involves executing multiple tasks simultaneously, while multiprogramming involves running multiple programs on a single processor.

    • Multitasking allows multiple tasks to run concurrently on a single processor, switching between them quickly.

    • Multiprogramming involves loading multiple programs into memory and executing them concurrently, utilizing idle CPU time efficiently.

    • Examples of multitasking include runn...

  • Answered by AI
  • Q3. What is the difference between a process and a program?
  • Ans. 

    A process is an executing instance of a program, while a program is a set of instructions stored in the computer's memory.

    • A program is a static set of instructions stored on disk, while a process is a dynamic instance of those instructions being executed in memory.

    • Multiple processes can be running the same program simultaneously, each with its own memory space and resources.

    • Processes have their own unique process ID (P...

  • Answered by AI
  • Q4. What is the difference between a process and a thread?
  • Ans. 

    A process is an instance of a program, while a thread is a unit of execution within a process.

    • A process has its own memory space, while threads share the same memory space.

    • Processes are independent and isolated, while threads can communicate and share resources.

    • Creating a new process is more resource-intensive than creating a new thread.

    • Processes have their own program counter, while threads share the same program coun...

  • Answered by AI
  • Q5. What is the main difference between UNION and UNION ALL?
  • Ans. 

    UNION combines and removes duplicate rows, UNION ALL combines without removing duplicates.

    • UNION combines the result sets of two or more SELECT statements into a single result set

    • UNION removes duplicate rows from the result set

    • UNION ALL combines the result sets without removing duplicates

    • UNION is slower than UNION ALL as it requires additional processing to remove duplicates

    • Use UNION when you want to combine and remove ...

  • Answered by AI
  • Q6. What are the advantages of using views in a database management system?
  • Ans. 

    Views provide a virtual representation of data, offering advantages such as simplifying complex queries, enhancing security, and improving performance.

    • Views simplify complex queries by predefining commonly used joins, filters, and aggregations.

    • Views enhance security by allowing users to access only specific columns or rows of a table.

    • Views improve performance by storing the results of complex queries, reducing the need...

  • Answered by AI
  • Q7. What is the ARP protocol?
  • Ans. 

    ARP stands for Address Resolution Protocol, used to map IP addresses to MAC addresses in a local network.

    • ARP is used to find the MAC address of a device based on its IP address

    • It operates at the data link layer of the OSI model

    • ARP requests are broadcasted to all devices on the local network

    • Example: When a device wants to communicate with another device on the same network, it uses ARP to find the MAC address of the des

  • Answered by AI
Round 3 - HR 

(2 Questions)

Round duration - 30 Minutes
Round difficulty - Easy

This is a cultural fitment testing round. HR was very frank and asked standard questions. Then we discussed about my role.

  • Q1. Why should we hire you?
  • Ans. 

    I should be hired because of my strong technical skills, problem-solving abilities, and passion for software development.

    • I have a solid understanding of data structures and algorithms.

    • I have experience in developing and debugging complex software systems.

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

    • I have a track record of delivering high-quality code on time.

    • I am a team player and c...

  • Answered by AI
  • Q2. What is something about you that is not included in your resume?

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPAHewlett Packard Enterprise interview preparation:Topics to prepare for the interview - Data Structures, Algorithms, System Design, Aptitude, OOPSTime required to prepare for the interview - 4 MonthsInterview preparation tips for other job seekers

Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.

Application resume tips for other job seekers

Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.

Final outcome of the interviewSelected

Skills evaluated in this interview

Interview Questionnaire 

1 Question

  • Q1. Basic java, core java

Interview Preparation Tips

Round: Test
Experience: Oracle had an online test which includes 3
Sections:
1. Programming: basic C++/java programming + data structure. One need to have good hand over oops
to score well in this section.

2. Aptitude: General Aptitude Questions

3. General Maths: Very simple maths problem (+2 level) but needs very very good speed.
Tips: Individual cutoff was not declared, but different cutoff for different profile is expected.
Oracle has no GD round.

Round: Interview
Experience: In 2nd round of interview, there was more programming, less resume based question and more emphasis on will I be comfortable in an IT sector. Some apti questions were also asked.

Round: Interview
Experience: 1st round was completely on resume based. Each and every project and intern is discussed in detail. Most of the extracurricular activities were also discussed. In the 1st interview, some basic program like fibonacci series by recursion, star pattern by loop etc were asked.

Round: Interview
Experience: Next round was HR. I was asked about the earlier 2 interviews and some basic HR questions.

College Name: IIT Roorkee

Interview Preparation Tips

Round: Test
Experience: The sections were Quantitative, Logical, Verbal and Computer Science.The three sections contained very basic questions of general aptitude while the Computer Science section contained questions on Database Management, OS, SQL and Programming Aptitude.

Round: Test
Experience: The question was to program a logic to test the correctness of a solved sudoku. We were allowed to code in C++, Java, C or pseudo code.

Round: Technical Interview
Experience: Were asked simple questions and program them like reversing string without temporary variables, finding the earlier date when entered as string and finding the difference in number of days between them.
I was asked to explain him my internship project in great detail and above all one should be prepared to answer the question 'Why IT?' if from a non IT background. Then I was asked to program a logic for 'Search and replace" tool of MS Word.

Round: HR Interview
Experience: Was asked about my background in detail and stressed again and again on 'Why IT?'. Then he asked me to prepare a summary on the merits and demerits of various Employee Data Management techniques for an organisation. For the end of the interview you should have a question which you would ask to the interviewer.

General Tips: Don't try to over emphasize the correctness of your logic if the interviewer finds a glitch. It irritates him. Be interactive in your HR round. In our case it was the VP of Oracle India who took the final round. So I asked him about his experience in the company. He was very happy to share it with me. But asses your interviewer before you put forth these queries cause your interviewer might not be as jolly as mine was.
Skills:
College Name: NIT Surathkal

Interview Preparation Tips

Round: Resume Shortlist
Tips: If you think it is worth it, write it in the resume.

Round: Technical Interview
Experience: I discussed a political party in one such interview in another company. He was impressed rather inspired.
Tips: All they are looking for in this interview is that you have a basic aptitude

Round: HR Interview
Tips: Try to be as real as possible. They know people and have great deal of experience. You cannot fake it.

General Tips: Peace yoo
College Name: IIT BOMBAY

Interview Questionnaire 

2 Questions

  • Q1. Ques on SQL,puzzles, C
  • Q2. Basic family background, hobbies, academics, why interest in software field, questions from the ppt they presentec earlier

Interview Preparation Tips

Round: Test
Experience: apti and logical reasoning ques  were not tough and with basic knowledge on C and SQL I could easily solve the questions
Tips: Just try to  maintain a good speed while solving

Round: Technical Interview
Experience: mostly they focus their questions based on the form that we had to fill. it had details about our extracurricular activities, main courses of interest, training and project work, software languages known, academics.
Tips: the form was to be filled with accuracy and only those points about which one is confident enough should be added

Round: HR Interview
Experience: it was just a normal interaction. they wanted to know the kind of person i am, my strengths and weakness. any impressive qualities unique of me. my favourite author. it lasted no longer than 10 minutes . and try to acquire as much background information as you about the company.
Tips: try to be honest with your answers. do not fake since they can easily catch you. do not give any such answers about which you are not confident or any view where you cannot defend yourself.

Skill Tips: I learned sql from w3school.com.
Skills: confidence, amicable nature, leadership qualities, participation in extracurricular activities, puzzle solving, Aptitude
College Name: NIT ROURKELA
Motivation: Its quite simple, I wanted to land with good job before i leave  nit.
Funny Moments: Since it was the first time i was facing an interview, so i asked my interviewer how were my answers.

Interview Questionnaire 

4 Questions

  • Q1. Given a compact data structure to store strings sequentially, one byte stores length l of the string, next l bytes contain the string characters. Write a code to insert the given string at the ith place, m...
  • Ans. 

    The code inserts a given string at the specified position in a compact data structure that stores strings sequentially.

    • To insert the string at the ith place, we need to shift all the strings after the ith position by the length of the new string.

    • We can use a loop to iterate through the data structure and find the ith position.

    • After finding the ith position, we can calculate the new length of the data structure and allo...

  • Answered by AI
  • Q2. How will you construct parse tree for ((a+b)*c)/d? what all data structures can you use?
  • Ans. 

    Constructing parse tree for ((a+b)*c)/d using data structures.

    • Use stack data structure to keep track of operators and operands.

    • Start with the innermost parentheses and work outwards.

    • Create a node for each operator and operand and link them together.

    • The root node will be the final result of the expression.

    • Example: ((a+b)*c)/d can be represented as / -> * -> + -> a, b, c, d.

  • Answered by AI
  • Q3. Given a function f that returns true or false based on whether the input string satisfies some hidden criterion C, write a function that verifies that all sub strings satisfy C
  • Q4. You hand over 'n' identical linked lists to n salespersons. After the day's work, these salesperson return the lists. Merge these lists such that all insertions, deletions, updates are taken care of, so th...
  • Ans. 

    Merge 'n' identical linked lists from 'n' salespersons to handle insertions, deletions, and updates.

    • Iterate through each linked list and merge them into a single linked list

    • Handle insertions, deletions, and updates by traversing the merged list and making necessary changes

    • Repeat the process for the next day by resetting the merged list

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: It was an online test. The company who hosted the test messed up with the interface, and a lot of people had trouble with a coding question that could not be solved because of the faulty interface. There was no retest.
The shortlisting was done after studying compile attempts, time devoted to various sections and other performance measures.

Round: Technical Interview
Experience: Told about myself, my interests, my internship projects and my work so far.
A few coding questions were asked too.
In the end, they asked if i have any questions.
Tips: Interviewers are friendly. Be calm, give your best.

General Tips: Start preparing early.
Develop priorities both sector wise and company wise.
Take sufficient water and food with you. Interviews can start at 4 am on the first day!
Have enough copies of resume and transcripts with you.
If you have been shortlisted for many companies, it is preferable to have a portfolio manager who manages your phone during the day and enables you to focus on the interviews.
College Name: IIT KANPUR

Skills evaluated in this interview

Dell Interview FAQs

How to prepare for Dell Developer interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Dell. The most common topics and skills that interviewers at Dell expect are Switching, Bgp, IT Networking, Java and OSPF.

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