IDS Technologies Interview Questions and Answers

1. Prime Factors Operations

You are given an integer n. In one operation, you can do the following

• Pick a number P such that P is prime and n is divisble by P. Assign P

Find the maximum number of operations you can perform.

Function description

Complete the primeGame function in the editor below. It has the following param

Name

Type

Description

INTEGER

The given integer n.

n

Return

The function must return an INTEGER denoting the maximum operations you can perform.

Constraints

• 1 ≤ n ≤ 10^9

Input format for debugging

• The first line contains an integer, n, denoting the initial value of n. desc

Q1. What is Object-Oriented Programming (OOP) in Java, and can you explain concepts such as encapsulation and polymorphism with examples?
Ans. 
OOP in Java is a programming paradigm that uses objects to design applications. Encapsulation is the bundling of data and methods, while polymorphism allows objects to be treated as instances of their parent class.
• OOP in Java focuses on creating objects that interact with each other to design applications

• Encapsulation in Java involves bundling data (variables) and methods (functions) within a class to restrict access f...read more
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Q2. What are wrapper classes in Java, and what is their purpose?
Ans. 
Wrapper classes in Java are classes that allow primitive data types to be used as objects.
• Wrapper classes provide a way to convert primitive data types into objects.

• They are used when an object is required, such as in collections like ArrayList.

• Examples include Integer for int, Double for double, Boolean for boolean, etc.
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Q3. Given an array, how can it be rotated to the left?
Ans. 
To rotate an array to the left, shift all elements to the left by one position and move the first element to the end.
• Create a temporary variable to store the first element of the array.

• Shift all elements to the left by one position.

• Assign the temporary variable value to the last element of the array.
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Q4. Can you explain the projects you have completed and provide details about your internships?
Ans. 
I have completed projects in renewable energy and automation systems. I have also interned at a manufacturing company and a research institute.
• Completed a project on designing a solar-powered irrigation system for a rural community

• Completed a project on developing an automated warehouse management system using RFID technology

• Interned at a manufacturing company where I worked on optimizing production processes

• Interned a...read more
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Q5. What is the difference between an ArrayList and an array in Java?
Ans. 
ArrayList is a dynamic array in Java that can grow or shrink in size, while an array has a fixed size.
• ArrayList can dynamically resize itself, while array has a fixed size.

• ArrayList is a class in Java, while array is a basic data structure.

• ArrayList provides methods to add, remove, and access elements easily, while array requires manual manipulation.

• Example: ArrayList<String> list = new ArrayList<>(); Strin...read more
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Q1. Self Introduction
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Q1. Worst and very cunning interviewer
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General aptitude test

Q1. Why do you choose our concern?
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Q2. Can you explain your previous work experience step on step?
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Q3. The role you choose is irrelevant to previous one what makes believe you that you can survive
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Q4. We have 6 months of probation period for all the payroll staffs,post the probation only you will be a confirmed payroll employee, is that ok for you?
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Q1. About previous role and duties
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Q2. Why do you left the organisation?
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Q1. Tell me about yourself.
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Q2. What is the definition and purpose of market research?
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Q3. What services does Ipsos provide?
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Q4. What is the concept of mystery shopping?
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Q5. What is your knowledge and experience with Microsoft Office?
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Here’s a simple framework to approach a case study effectively:


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Case Study Framework

1. Understand the Problem

Read the case thoroughly and identify the key issue.

Ask clarifying questions if needed (if in a live setting).

Summarize the problem in your own words.



2. Analyze the Situation

SWOT Analysis (Strengths, Weaknesses, Opportunities, Threats)

Identify relevant stakeholders.

Gather data or key insights from the case text.



3. Identify Alternatives

Brainstorm possible solutions to the problem.

Consider multiple approaches (e.g., short-term vs. long-term solutions).



4. Evaluate the Alternatives

Weigh the pros and cons of each solution.

Assess feasibility, costs,

Q1. What are the common performance issues that can occur in a system?
Ans. 
Common performance issues in a system include slow response times, high resource usage, bottlenecks, and crashes.
• Slow response times can be caused by inefficient code, network latency, or overloaded servers.

• High resource usage can lead to system slowdowns and crashes, often caused by memory leaks or inefficient algorithms.

• Bottlenecks occur when a component of the system becomes a limiting factor, such as a database ser...read more
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Q2. What is your experience with software bug fixing?
Ans. 
I have experience in identifying and resolving software bugs through thorough testing and collaboration with developers.
• Identifying bugs by reproducing issues reported by users

• Collaborating with developers to understand root cause of bugs

• Testing bug fixes to ensure they are effective

• Utilizing bug tracking tools like Jira or Bugzilla

• Experience with regression testing to prevent reoccurrence of bugs
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Shortcut Tips for Coding Tests: 1. Master the Basics: Familiarize yourself with arrays, strings, loops, and conditional statements. 2. Learn Patterns: Concentrate on sliding window, two-pointer techniques, recursion, and divide-and-conquer methods. 3. Use Standard Algorithms: Study breadth-first search (BFS), depth-first search (DFS), sorting algorithms, and dynamic programming principles. 4. Understand Data Structures: Practice with stacks, queues, linked lists, and trees. 5. Practice Edge Cases: Consider scenarios involving empty inputs, duplicates, and large datasets. 6. Write Pseudocode: Outline your plan before starting to code. 7. Optimize Early: Always strive for efficiency in your solutions.

Q1. Tell me about youtself?
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Q2. What do you know about TDS?
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Q3. Situation AP based journal entries
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Q4. What is GST on reverse charge?
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Q5. What are the documents required to initiate a foreign remittance?
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Q6. More situational based AP journal entries.
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Q1. Tell me about a time where you have to raise against management
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Q2. Tell me about a time where you have to go through a change in company
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Q1. Tell me about a time where you were not able to meet upto mark
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Q2. Tell me about a time where you have to say against your manager
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