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AutoRABIT Software Developer Interview Questions, Process, and Tips
AutoRABIT Software Developer Interview Experiences
1 interview found
Anurag V
Selected
I applied via Company Website and was interviewed before May 2023. There were 4 interview rounds.
Hacker Earth - Couple of Aptitude and Java theory questions followed by 2 Java coding questions. Medium to Hard Difficulty level
(3 Questions)
- Q1. Java Concepts and Profile based questions
- Q2. Array List vs Array
- Ans.
Array List is a dynamic array that can grow or shrink in size, while Array has a fixed size.
Array List allows for dynamic resizing, while Array has a fixed size set at initialization.
Array List is more flexible and easier to work with for adding or removing elements.
Array has better performance for random access due to contiguous memory allocation.
Example: ArrayList<String> list = new ArrayList<>(); String[
- Q3. Waterfall model vs Agile
- Ans.
Waterfall model is a linear sequential approach to software development, while Agile is an iterative and incremental approach.
Waterfall model follows a sequential process where each phase must be completed before moving on to the next.
Agile is flexible and allows for changes to be made throughout the development process.
Waterfall model is best suited for projects with well-defined requirements, while Agile is better fo...
(2 Questions)
- Q1. Post Request in Python
- Ans.
To send a POST request in Python, use the requests library.
Import the requests library
Use the requests.post() method with the URL and data as parameters
Handle the response object to get the result
- Q2. Basic SQL queries with data needed from 2-3 tables
(3 Questions)
- Q1. Personal project based questions
- Q2. How can an application be scaled to cater to wider audience
- Ans.
An application can be scaled to cater to a wider audience by implementing load balancing, caching, database optimization, and microservices architecture.
Implement load balancing to distribute incoming traffic across multiple servers to prevent overload on any single server.
Utilize caching to store frequently accessed data in memory for faster retrieval and reduced load on the database.
Optimize the database by indexing ...
- Q3. (Optional) Designing a payment processing system
- Ans.
Designing a payment processing system involves creating a secure and efficient platform for handling financial transactions.
Implement secure encryption methods to protect sensitive data
Utilize tokenization to replace card information with a unique identifier
Integrate with payment gateways like PayPal or Stripe for processing transactions
Include fraud detection mechanisms to prevent unauthorized transactions
Interview Preparation Tips
Skills evaluated in this interview
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Anonymous
I applied via LinkedIn and was interviewed in Mar 2021. There were 3 interview rounds.
Interview Questionnaire
2 Questions
- Q1. Basic C++ questions mainly on OOPS.
- Q2. Few puzzles
Interview Preparation Tips
I appeared for an interview before Sep 2020.
(1 Question)
Round duration - 120 Minutes
Round difficulty - Easy
The round was conducted in day around 3PM.
- Q1.
Partition Equal Subset Sum Problem
Given an array
ARRconsisting of 'N' positive integers, determine if it is possible to partition the array into two subsets such that the sum of the elements in both sub... - Ans.
The problem is to determine if it is possible to partition an array into two subsets with equal sum.
Use dynamic programming to solve this problem efficiently.
Create a 2D array to store the results of subproblems.
Check if the sum of the array is even before attempting to partition it.
Iterate through the array and update the 2D array based on the sum of subsets.
Return true if a subset with half the sum is found, false ot
(2 Questions)
Round duration - 30 Minutes
Round difficulty - Easy
The interview was preponed and was conducted at 9AM.
The interviewer was friendly and I had saw him earlier at pre-placement talk.
- Q1.
Convert Sentence to Pascal Case
Given a string
STR, your task is to remove spaces fromSTRand convert it to Pascal case format. The function should return the modifiedSTR.In Pascal case, words are con...
- Ans.
Convert a given string to Pascal case format by removing spaces and capitalizing the first letter of each word.
Iterate through each character in the string
If the character is a space, skip it
If the character is not a space and the previous character is a space or it is the first character, capitalize it
- Q2. Write an SQL query to retrieve the Nth highest salary from a database.
- Ans.
SQL query to retrieve the Nth highest salary from a database
Use the ORDER BY clause to sort salaries in descending order
Use the LIMIT clause to retrieve the Nth highest salary
Consider handling cases where there might be ties for the Nth highest salary
(1 Question)
Round duration - 30 Minutes
Round difficulty - Easy
This round was conducted 15mins after 1st round.
- Q1.
Remove the Kth Node from the End of a Linked List
You are given a singly Linked List with 'N' nodes containing integer data and an integer 'K'. Your task is to delete the Kth node from the end of this Lin...
- Ans.
Remove the Kth node from the end of a singly linked list.
Traverse the list to find the length 'N'.
Calculate the position of the node to be removed from the beginning as 'N - K + 1'.
Remove the node at the calculated position.
Handle edge cases like removing the head or tail of the list.
Update the pointers accordingly after removal.
Interview Preparation Tips
Tip 1 : Do Competitive Coding
Tip 2 : Learn at least 1 framework
Tip 3 : Build interest in computers
Tip 1 : Be well informed of everything you mention in your resume
Tip 2 : Mention competitive coding achivements in your resume(if any)
Skills evaluated in this interview
I applied via Recruitment Consultant and was interviewed in Oct 2020. There were 4 interview rounds.
Interview Questionnaire
3 Questions
- Q1. Program for reverse of string in minimum iteration
- Ans.
Program to reverse a string in minimum iteration
Use two pointers, one at the start and one at the end of the string
Swap the characters at the two pointers and move the pointers towards each other
Repeat until the pointers meet in the middle of the string
- Q2. Project architecture and structure and role you were doing
- Q3. Core java concepts
Interview Preparation Tips
I applied via Naukri.com and was interviewed in Apr 2021. There were 4 interview rounds.
Interview Questionnaire
1 Question
- Q1. Basic of core java and project related questions.
Interview Preparation Tips
I appeared for an interview before Jan 2021.
(2 Questions)
Round duration - 120 Minutes
Round difficulty - Medium
The test included MCQ questions from SQL, Linux Commands, C/C++ programming, Logical Reasoning, Aptitude questions. The other section was the coding round, where 2 SQL queries and 2 coding questions were there.
- Q1.
Subarray with Equal Occurrences Problem Statement
You are provided with an array/list
ARRof lengthNcontaining only 0s and 1s. Your goal is to determine the number of non-empty subarrays where the numbe... - Ans.
Count the number of subarrays where the number of 0s is equal to the number of 1s in a given array of 0s and 1s.
Iterate through the array and keep track of the count of 0s and 1s encountered so far.
Use a hashmap to store the count of 0s and 1s encountered at each index.
For each index, check if the count of 0s is equal to the count of 1s encountered so far and update the result accordingly.
- Q2.
Pythagorean Triplets Detection
Determine if an array contains a Pythagorean triplet by checking whether there are three integers x, y, and z such that x2 + y2 = z2 within the array.
Input:
The first lin... - Ans.
Detect if an array contains a Pythagorean triplet by checking if there are three integers x, y, and z such that x^2 + y^2 = z^2.
Iterate through all possible triplets of numbers in the array and check if they form a Pythagorean triplet.
Use a nested loop to generate all possible combinations of three numbers from the array.
Check if the sum of squares of two numbers is equal to the square of the third number for each trip...
(3 Questions)
Round duration - 50 Minutes
Round difficulty - Medium
This was a standard DSA round where I was asked to solve 2 questions and also code it in a production ready manner . At the end I was also asked some questions related to Linux and SQL . I was tested on some basic commands of Linux .
- Q1.
Palindromic Substrings Problem Statement
Given a string
S, your task is to return all distinct palindromic substrings of the given string in alphabetical order.Explanation:
A string is considered a pal...
- Ans.
Return all distinct palindromic substrings of a given string in alphabetical order.
Iterate through all possible substrings of the given string.
Check if each substring is a palindrome.
Store distinct palindromic substrings in alphabetical order.
- Q2.
Swap Two Numbers Problem Statement
Given two integers
aandb, your task is to swap these numbers and output the swapped values.Input:
The first line contains a single integer 't', representing the num... - Ans.
Swap two integers 'a' and 'b' and output the swapped values.
Create a temporary variable to store one of the integers before swapping.
Swap the values of 'a' and 'b' using the temporary variable.
Output the swapped values of 'a' and 'b'.
- Q3. What is meant by normalization and denormalization?
- Ans.
Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity, while denormalization is the process of intentionally adding redundancy to improve query performance.
Normalization involves breaking down a table into smaller tables and defining relationships between them to reduce redundancy and dependency.
Denormalization involves combining tables or adding redundant data to...
(3 Questions)
Round duration - 60 Minutes
Round difficulty - Medium
This was a DS/Algo + Core round where I was asked questions related to DBMS , SQL queries and Linux Commands . The first question was of DSA and I was able to code it preety fast . I was also asked to execute some SQL queries on my laptop.
Overall , this round went good according to my opinion.
- Q1.
Anagram Pairs Verification Problem
Your task is to determine if two given strings are anagrams of each other. Two strings are considered anagrams if you can rearrange the letters of one string to form the...
- Ans.
Check if two strings are anagrams of each other by comparing their sorted characters.
Sort the characters of both strings and compare them.
Use a dictionary to count the frequency of characters in each string and compare the dictionaries.
Ensure both strings have the same length before proceeding with comparison.
Handle edge cases like empty strings or strings with different lengths.
- Q2. How would you delete duplicate emails from a database using SQL?
- Ans.
Use SQL query with GROUP BY and HAVING clause to delete duplicate emails from a database.
Use GROUP BY clause to group emails together
Use HAVING clause to filter out groups with more than one email
Use DELETE statement to remove duplicate emails
- Q3. What is the difference between the DELETE and TRUNCATE commands in a DBMS?
- Ans.
DELETE removes specific rows from a table, while TRUNCATE removes all rows and resets auto-increment values.
DELETE is a DML command, while TRUNCATE is a DDL command.
DELETE can be rolled back, while TRUNCATE cannot be rolled back.
DELETE triggers ON DELETE triggers, while TRUNCATE does not trigger any triggers.
DELETE is slower as it maintains logs, while TRUNCATE is faster as it does not maintain logs.
Example: DELETE FRO...
(2 Questions)
Round duration - 30 Minutes
Round difficulty - Easy
This was a typical HR round with some standard Behavioral questions .
- Q1. What is something about you that is not included in your resume?
- Q2. Why do you want to work at Amdocs?
Interview Preparation Tips
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.
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.
Skills evaluated in this interview
I appeared for an interview in Jul 2021.
Interview Preparation Tips
I applied via Company Website and was interviewed in Mar 2021. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. C++ basic questions, also asked me to run few programs on online gdb
Interview Preparation Tips
I applied via Campus Placement and was interviewed in Dec 2020. There was 1 interview round.
Interview Questionnaire
7 Questions
- Q1. What is views in sql?
- Ans.
Views in SQL are virtual tables that display data from one or more tables.
Views are created using SELECT statements.
They can be used to simplify complex queries.
They can also be used to restrict access to sensitive data.
Views do not store data themselves, but rather display data from other tables.
Example: CREATE VIEW myView AS SELECT * FROM myTable WHERE column = 'value';
- Q2. How to create Back Up table in mysql?
- Ans.
To create a backup table in MySQL, use the CREATE TABLE statement with SELECT INTO.
Use the CREATE TABLE statement with SELECT INTO to create a backup table.
Specify the name of the backup table and the name of the original table.
Use the SELECT INTO statement to copy the data from the original table to the backup table.
Example: CREATE TABLE backup_table SELECT * FROM original_table;
Make sure to regularly update the backu
- Q3. Difference between constructor and method?
- Ans.
Constructor is used to initialize an object while method is used to perform an action on an object.
Constructor is called automatically when an object is created while method is called explicitly.
Constructor has the same name as the class while method has a unique name.
Constructor does not have a return type while method has a return type.
Example of constructor: public class Car { public Car() { //initialize variables }...
- Q4. Explain 4 words of OOPs. Encapsulation, Inheritance,Abstraction,Polymorphism
- Ans.
OOPs concepts include Encapsulation, Inheritance, Abstraction, and Polymorphism.
Encapsulation: bundling of data and methods that operate on that data
Inheritance: creating new classes from existing ones
Abstraction: hiding implementation details and showing only necessary information
Polymorphism: ability of objects to take on multiple forms or behaviors
- Q5. What is Garbage collector in java?
- Ans.
Garbage collector in Java is an automatic memory management system that frees up memory by removing unused objects.
Garbage collector runs in the background and identifies objects that are no longer in use
It frees up memory by removing those unused objects
It helps prevent memory leaks and improves performance
Java provides different types of garbage collectors such as Serial, Parallel, CMS, and G1
Example: If an object is...
- Q6. Write a program to reverse the string any language
- Ans.
Program to reverse a string in any language
Create an empty string variable to store the reversed string
Loop through the original string from the end to the beginning
Append each character to the empty string variable
Return the reversed string
- Q7. Write a program to display pattern. output - 1 12 123 1234
- Ans.
Program to display a pattern of numbers in a pyramid shape.
Use nested loops to print the numbers in the desired pattern.
The outer loop controls the number of rows and the inner loop prints the numbers in each row.
Use a variable to keep track of the number to be printed in each row.
Print a new line after each row is printed.
Interview Preparation Tips
Skills evaluated in this interview
I appeared for an interview before Sep 2020.
(1 Question)
Round duration - 60 Minutes
Round difficulty - Easy
It was a hangout video call. The interviewer asked me these questions. Tell me about yourself and 1 coding question.
- Q1.
Special Numbers Problem Statement
Your task is to find the total count of special numbers within a range from 1 to a given integer, 'MAXVAL'. A special number is defined as a number whose digits, when rot...
- Ans.
Count the total number of special numbers within a given range by rotating digits 180 degrees.
Create a function to check if a number is a special number by rotating its digits.
Iterate through the range from 1 to MAXVAL and count the special numbers.
Handle the digit rotation mapping for 0, 1, 6, 8, 9.
Return the count of special numbers for each test case.
Round duration - 60 Minutes
Round difficulty - Easy
This was an On-site (Behavioural Round) interview. He asked me these questions.
(1 Question)
Round duration - 60 Minutes
Round difficulty - Easy
This was another On-site ( DS & Algo) algorithm.
- Q1.
Covid Vaccination Distribution Problem
As the Government ramps up vaccination drives to combat the second wave of Covid-19, you are tasked with helping plan an effective vaccination schedule. Your goal is...
- Ans.
Given constraints, find max vaccines administered on a specific day during a vaccination drive.
Iterate through each test case and calculate the maximum number of vaccines distributed on the specified day.
Distribute vaccines evenly across days while maximizing the number on the specified day.
Ensure that the sum of vaccines administered does not exceed the maximum allowed.
Consider edge cases like when the number of days ...
(2 Questions)
Round duration - 60 Minutes
Round difficulty - Easy
Another On-site ( DS & Algo) interview.
- Q1.
Painter's Partition Problem Statement
Given an array/list representing boards, where each element denotes the length of a board, and a number ‘K’ of available painters, determine the minimum time required...
- Ans.
Determine the minimum time required to paint all boards with given constraints.
Use binary search to find the minimum and maximum possible time to paint all boards.
Iterate through the boards and assign them to painters based on the time constraints.
Calculate the total time taken to paint all boards with the assigned painters.
- Q2.
Chocolate Distribution Problem
You are given an array/list
CHOCOLATESof size 'N', where each element represents the number of chocolates in a packet. Your task is to distribute these chocolates among 'M'... - Ans.
Distribute chocolates among students to minimize the difference between the largest and smallest number of chocolates.
Sort the array of chocolates.
Use sliding window technique to find the minimum difference between the largest and smallest number of chocolates.
Return the minimum difference as the output.
(1 Question)
Round duration - 60 Minutes
Round difficulty - Easy
Another On-site ( DS & Algo) interview.
- Q1.
Problem Statement: Minimize the Maximum
You are given an array of integers and an integer
K. For each array element, you can adjust it by increasing or decreasing it by a value ofK. Your goal is to minim... - Ans.
Given an array of integers and an integer K, minimize the difference between the maximum and minimum elements after adjusting each element by +/- K.
Sort the array in non-decreasing order.
For each element, calculate the difference between the current element and the next element.
Adjust the element by adding or subtracting K to minimize the difference.
Return the minimum possible difference between the maximum and minimum
(1 Question)
Round duration - 60 minutes
Round difficulty - Easy
On-site ( DS & Algo) interview.
Google mainly focuses on logic and how you are coming with a solution. It notes down each and every small mistake. Interviewers are really very helpful. They expect clear code with an optimal approach.
- Q1.
Farthest Distance From Lands Problem Statement
Given a binary square matrix 'ARR' with 'N' rows and 'N' columns, where '0' represents water and '1' represents land.
Determine the water cell whose distanc...
- Ans.
Find the water cell farthest from land in a binary matrix using Manhattan distance.
Iterate through the matrix to find all land cells and water cells
Calculate the Manhattan distance of each water cell to the nearest land cell
Return the maximum distance found
Interview Preparation Tips
Tip 1 : Participate in coding contests.
Tip 2 : Practice as many questions as you can.
Tip 3 : Do some good projects.
Tip 1 : Have some projects on your resume.
Tip 2 : Do not put false things on your resume.
Skills evaluated in this interview
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