Hughes Systique Corporation Interview Questions, Process, and Tips

A total time of 1 hour 30 minutes was given for this round, and it was held on the HackerEarth platform.

20 Aptitude questions- logical questions, questions on the diagram, time and train, direction, efficient statement, Venn diagram, few examples of the type of questions:

1. If 2 workers can paint 3 rooms in 4 hours, how many rooms can 1 worker paint in 5 hours

2. If there are 21 blue, 15 black and 17 red ball in a sack, how many minimum ball would you have to remove to ensure that you have removed at least 2 blue ball? (multiple questions of this type can be there)

3. The sum of the 5 numbers in AP is 80. The difference between each is 5. Smallest number?

4. A and B are standing in a row. A is 5th from the left, and B is 13th from the right. After they exchange their positions, A is 11th from left. How many people are in the row?

20 questions on CSE Fundamentals- Questions based on OS - Time Scheduling, Stacks, Find output and error in Java Code, Cpp code and C Code, DBMS, Time complexity, etc.

2 questions based on DSA, out of which you will have to attempt any 1.

For example, the Question was based on the array - in an abandoned city, you are given an array of gold coins, and you have to maximise the number of gold coins while moving in the city and traverse a minimum number of elements in the array.

Q1. 1. ARRAYS, STRINGS AND SORTING: Bubble sort, Complexity of all sorting algorithms.
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Q2. 2. Find the first non repeating character in a string
Ans. 
Find the first non-repeating character in a string.
• Create a hash table to store the frequency of each character in the string.

• Iterate through the string and check the frequency of each character.

• Return the first character with a frequency of 1.
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Q3. 3. Remove duplicates from an array
Ans. 
Remove duplicates from an array of strings
• Create a new empty array

• Loop through the original array and check if the element already exists in the new array

• If not, add it to the new array

• Return the new array
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Q4. 4. An array and 2 variables x and y are given, print y sub arrays with x elements.
Ans. 
Print y sub arrays with x elements from given array and variables.
• Use a loop to iterate through the array and create subarrays of x elements.

• Use another loop to print y number of subarrays.

• Handle edge cases where x or y is greater than the length of the array.
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Q5. 5. Explain the function pointer.
Ans. 
A function pointer is a variable that stores the memory address of a function.
• Function pointers allow passing functions as arguments to other functions.

• They can be used to implement callbacks and event handlers.

• Function pointers can be used to implement polymorphism in C.

• Example: int (*funcPtr)(int, int) = &add; where add is a function that takes two integers and returns their sum.

• Function pointers can also be used to
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Q6. 6. Explain copy constructor
Ans. 
Copy constructor creates a new object by copying an existing object.
• Used to initialize an object with another object of the same class

• Takes a reference to an object of the same class as a parameter

• Creates a new object with the same values as the parameter object

• Deep copy and shallow copy are two types of copy constructors
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Q7. 7. Deep copy / Shallow copy
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Q8. 8. Characteristics of static function
Ans. 
Static functions belong to the class and not to the instance of the class.
• Can be called without creating an instance of the class

• Cannot access non-static members of the class

• Can access other static members of the class

• Used for utility functions or helper functions
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Q9. 9. What are Abstract classes
Ans. 
Abstract classes are classes that cannot be instantiated and are meant to be extended by other classes.
• Abstract classes are declared using the 'abstract' keyword.

• They can have abstract and non-abstract methods.

• Abstract methods are declared without a body and must be implemented by the subclass.

• Abstract classes can have constructors and instance variables.

• They are useful for creating a common interface for a group of re
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Q1. 1. Explain Trees and Binary Search Trees.
Ans. 
Trees are data structures that store hierarchical data. Binary Search Trees are a type of tree that maintains sorted order.
• Trees are composed of nodes that have a parent-child relationship.

• Binary Search Trees have at most two children per node and the left child is always smaller than the parent while the right child is always larger.

• Binary Search Trees allow for efficient searching, insertion, and deletion operations.

• ...read more
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Q2. 2. Difference between Linked List and Tree (where what should be used).
Ans. 
Linked list is a linear data structure while tree is a hierarchical data structure.
• Linked list is used when we need to maintain a sequence of elements and perform operations like insertion and deletion at any position.

• Tree is used when we need to represent a hierarchical structure and perform operations like searching, insertion, and deletion efficiently.

• Linked list has a single pointer to the next node while tree has ...read more
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Q3. 3. A real-life example of Tree.
Ans. 
A family tree is a real-life example of a tree data structure.
• A family tree has a root node (the oldest ancestor) and branches out to children, grandchildren, etc.

• Each node can have multiple child nodes but only one parent node.

• The tree structure allows for easy visualization of relationships and ancestry.

• Other examples include file systems, organization charts, and decision trees.
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Q4. 4. Some in-depth questions from standard topics like Linked List, trees, etc. will also be asked.
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Q1. If a rival company tries to use your code against us what will you do?
Ans. 
I will ensure that our code is properly protected by implementing security measures and legal actions if necessary.
• Implement security measures such as encryption and access control to prevent unauthorized access to our code.

• Monitor for any suspicious activity and take immediate action if any unauthorized access is detected.

• If necessary, take legal action against the rival company for intellectual property theft.

• Collabo...read more
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Q1. Given 9 ball all of which weigh the same except for one, what is the minimum of weighings necessary to find the ball weighs more (or less)?
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Q1. 1. What are your goals for the next 1 year, your 5-year goals?
Ans. 
To become proficient in new technologies and frameworks, contribute to meaningful projects, and advance my career.
• Learn and master new programming languages, frameworks, and tools

• Contribute to open-source projects and collaborate with other developers

• Improve problem-solving and critical thinking skills

• Advance to a senior or lead developer role

• Stay updated with industry trends and best practices
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Q2. 2. What are the recent challenges you faced in life?
Ans. 
I recently faced the challenge of learning a new programming language and adapting to a new project.
• Learning a new programming language

• Adapting to a new project

• Working with unfamiliar technologies

• Meeting tight deadlines
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Q3. 3. What are your hobbies in life besides coding?
Ans. 
I enjoy playing musical instruments, reading books, and hiking in my free time.
• Playing musical instruments

• Reading books

• Hiking
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Q4. 4. Why do you want to join this company?
Ans. 
I want to join this company because of its strong reputation in the industry and its commitment to innovation.
• Strong reputation in the industry

• Commitment to innovation

• Opportunity for professional growth

• Positive work culture

• Exciting projects and challenges
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Q5. 5. What work does our company do?
Ans. 
Our company provides backend development services for various industries.
• We develop and maintain backend systems for clients

• We specialize in creating scalable and efficient APIs

• Our work involves database management and optimization

• We collaborate with frontend developers to ensure seamless integration

• We follow industry best practices and stay updated with the latest technologies
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General Amptitude MCQ

Q1. First round was with a senior team member from the Domain I applied to.
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Q1. This round was with the Manager and the questions were mor in dept related to the feild
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Q1. This was a casual round
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Q1. Routing, Switching, firewalls, VPNs
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Q1. Routing, Switching, firewalls, VPNs
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Q1. Managerial round
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Simple apti questions

Q1. Simple coding based questions
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Q2. Factorial of a number
Ans. 
Factorial of a number is the product of all positive integers less than or equal to that number.
• Factorial of 0 is 1 (0! = 1)

• Factorial of a positive integer n is n * (n-1) * (n-2) * ... * 1

• Factorial is denoted by the symbol '!'
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Q1. Questions based on sip protocol.
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Q2. Question based on tools like sipp,jira etc.
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Q1. Prepare yourself very well in Linux and Shell scripting, Networking, Windows, Ansible, Jenkins, and ServiceNow. No fixed pattern of questions, but if you know Linux and scripting very well then you are goo...read more
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