Qmex Steel Construction Sde1 Interview Questions and Answers

Exploring the impact of technology on education and how it shapes learning experiences for students today.

• Technology enhances accessibility to educational resources, e.g., online courses from platforms like Coursera.

• Interactive tools like Kahoot! and Quizlet make learning engaging and fun for students.

• Virtual classrooms enable remote learning, allowing students to connect globally, especially during the pandemic.

• Artifi...read more

C++ is a high-level programming language used for developing system software, application software, device drivers, and video games.

• C++ is an extension of the C programming language.

• It supports object-oriented programming concepts like classes, inheritance, polymorphism, and encapsulation.

• C++ is used in developing operating systems, browsers, databases, and other software applications.

• It is known for its performance an...read more

A data structure that stores a sequence of elements in a linear order.

• Consists of nodes that contain data and a pointer to the next node.

• Can be singly linked or doubly linked.

• Used for implementing stacks, queues, and hash tables.

• Example: Singly linked list - 1 -> 2 -> 3 -> null

• Example: Doubly linked list - null <- 1 <-> 2 <-> 3 -> null

C++ is an extension of C with object-oriented programming features.

• C++ supports object-oriented programming while C does not.

• C++ has classes and templates while C does not.

• C++ has better support for exception handling than C.

• C++ has a standard library while C does not.

• C++ allows function overloading while C does not.

Arrays are contiguous blocks of memory while linked lists are made up of nodes that point to the next node.

• Arrays have fixed size while linked lists can grow dynamically.

• Insertion and deletion are faster in linked lists than in arrays.

• Arrays have better cache locality while linked lists have better memory utilization.

• Arrays are accessed using indices while linked lists are accessed using pointers.

• Examples of arrays inc...read more

Data abstraction is the process of hiding implementation details and showing only necessary information.

• Abstraction is achieved through abstract classes and interfaces.

• It helps in reducing complexity and increasing efficiency.

• Example: abstract class Shape with abstract method draw() implemented by its subclasses like Circle and Rectangle.

TCP/IP is a protocol used for communication between devices on the internet. OSI model is a conceptual framework for network communication.

• TCP/IP is a suite of protocols that governs communication between devices on the internet.

• OSI model is a conceptual framework that divides network communication into seven layers.

• TCP/IP is based on a four-layer model, which includes the application, transport, internet, and network ...read more

Program counter is a register that stores the memory address of the next instruction to be executed by the processor.

• Program counter is also known as instruction pointer.

• It is a part of the processor's control unit.

• The value of program counter is incremented after each instruction is executed.

• If a program counter is corrupted, the processor may execute incorrect instructions.

• Example: If the program counter is pointing ...read more

A program to reverse a given string.

• Create an empty string to store the reversed string.

• Iterate through the original string from end to start.

• Append each character to the empty string.

• Return the reversed string.

Recursion is a technique where a function calls itself to solve a problem. WAP for recursion is to write a program using recursion.

• Recursion is used to solve problems that can be broken down into smaller sub-problems.

• The base case is the condition where the function stops calling itself.

• The recursive case is where the function calls itself with a smaller input.

• Example: Factorial of a number can be calculated using recu...read more

A microprocessor is a computer processor that incorporates the functions of a central processing unit on a single integrated circuit.

• Microprocessors are used in various electronic devices such as computers, smartphones, and gaming consoles.

• Register names include program counter (PC), accumulator (ACC), general-purpose registers (GPR), and memory address register (MAR).

• Registers are used to store data and instructions t...read more

SQL commands are used to interact with databases and manipulate data.

• SELECT: retrieve data from a database

• INSERT: add new data to a database

• UPDATE: modify existing data in a database

• DELETE: remove data from a database

• CREATE: create a new database or table

• ALTER: modify the structure of a database or table

• DROP: delete a database or table

• JOIN: combine data from multiple tables

• GROUP BY: group data based on a specific colum...read more

SQL query to join two tables

• Use JOIN keyword to combine two tables based on a common column

• Specify the columns to be selected using SELECT keyword

• Use ON keyword to specify the common column between two tables

Pointers are variables that store memory addresses. Heap is a region of memory used for dynamic memory allocation.

• Pointers are used to access memory directly

• Heap is used for dynamic memory allocation

• Pointers can be used to create data structures like linked lists

• Heap memory must be manually managed to avoid memory leaks

The process of converting Example.c file to Example.exe involves several steps.

• Preprocessing: includes header file inclusion, macro expansion, and conditional compilation

• Compilation: converts source code to object code

• Linking: combines object code with libraries to create executable file

• Debugging: identifying and fixing errors in code

• Optimization: improving performance of executable file

I have implemented various software applications on Linux OS.

• Developed a web application using Python Flask framework on Linux server

• Created a custom Linux kernel module for a hardware device driver

• Implemented a distributed system using Apache Kafka on Linux machines

• Optimized performance of a database server running on Linux by tuning kernel parameters

I am a software engineer with 5 years of experience in developing web applications using Java and JavaScript.

• 5 years of experience in software development

• Expertise in Java and JavaScript

• Proficient in developing web applications

• Strong problem-solving and analytical skills

Helped a friend with a last-minute project submission

• Stayed up all night to help my friend complete a project

• Provided guidance and support throughout the project

• Helped my friend with the presentation and final submission

• Ensured my friend's success despite my own busy schedule

During a software development project, I collaborated with team members to resolve a critical bug and ensure timely delivery.

• Worked closely with team members to identify the root cause of the bug

• Collaborated with the QA team to develop a testing plan

• Implemented a fix and tested it thoroughly before deployment

• Communicated progress and updates to the project manager and stakeholders

• Ensured timely delivery of the project ...read more

String operations programs manipulate and modify strings.

• Use built-in string functions like substring, replace, and split.

• Implement algorithms like string reversal, palindrome check, and string compression.

• Regular expressions can also be used for advanced string operations.

• Examples: reversing a string, counting occurrences of a substring, converting a string to title case.

Single linked list operations involve adding and deleting nodes in a linear data structure.

• To add a node, create a new node and set its next pointer to the current head, then set the head to the new node.

• To delete a node, traverse the list until the node to be deleted is found, then set the previous node's next pointer to the node after the one being deleted.

• Be careful to handle edge cases such as adding to an empty li...read more

Aricent is a global design and engineering company.

• Provides software and engineering services to various industries

• Offers end-to-end product development solutions

• Has expertise in areas such as 5G, IoT, AI, and cloud computing

• Works with clients in telecommunications, healthcare, automotive, and more

My strengths include leadership, problem-solving, and communication. My weaknesses are time management and public speaking.

• Strengths: Leadership - I have experience leading teams and delegating tasks. Problem-solving - I am able to think critically and find solutions to complex problems. Communication - I am able to effectively communicate with team members and clients.

• Weaknesses: Time management - I sometimes struggle...read more

Inefficiency and lack of communication irritate me the most.

• Inefficiency in completing tasks

• Lack of communication within the team

• Not being able to meet deadlines due to lack of planning

• Unnecessary delays in decision-making

• Micromanagement

• Lack of clarity in instructions

I assess the situation, gather information, and make a decision based on company policies and procedures.

• Assess the situation and determine the severity of the issue

• Gather information from all parties involved

• Refer to company policies and procedures for guidance

• Make a decision based on the information gathered and company guidelines

• Communicate the decision to all parties involved

I am a leader who can also follow when necessary.

• I believe in leading by example and inspiring others to follow.

• I am comfortable taking charge and making decisions, but also value input from others.

• I am adaptable and can switch between leading and following depending on the situation.

• For example, in a team project, I would take the lead in organizing and delegating tasks, but also listen to and incorporate ideas from t...read more