60+ System Software Engineer Interview Questions and Answers

Reverse a string in a specific format

• Split the string into an array of words

• Reverse the array

• Join the array into a string with spaces

I enjoy both single player and group games, depending on my mood and the type of game.

• I prefer single player games when I want to relax and enjoy a story-driven experience.

• I enjoy group games when I want to socialize and collaborate with others.

• Some examples of single player games I enjoy are The Witcher 3 and Skyrim.

• Some examples of group games I enjoy are Overwatch and League of Legends.

Hardware selection depends on system requirements, vendor reputation, and cost.

• Identify system requirements and ensure hardware compatibility

• Research vendor reputation and reliability

• Consider cost and budget constraints

• Evaluate vendor support and maintenance options

• Compare hardware specifications and features

• Consider future scalability and upgrade options

Selenium is a tool for automating web browsers. WebDriver is a component of Selenium. Agile is a software development methodology.

• Selenium is used for automating web browsers to test web applications.

• WebDriver is a component of Selenium that provides a programming interface to control the browser.

• Agile is a software development methodology that emphasizes iterative development and collaboration between cross-functional teams.

• findElement() is used to locate a single web elemen...read more

A pointer is a variable that stores the memory address of another variable. An array is a collection of similar data types.

• Pointers are used to manipulate memory and create dynamic data structures.

• Arrays can be one-dimensional or multi-dimensional, and are accessed using index values.

• One-dimensional arrays are like a list of items, while two-dimensional arrays are like a table with rows and columns.

• Example: int *ptr; int arr[5]; ptr = &arr[0];

• Example: char names[3][10] = {"Jo...read more

Answering questions related to AWS, pointers, constructors, polymorphism, and abstraction in OOPs.

• AWS is a cloud computing platform that provides various services like storage, computing, and databases.

• Pointer is a variable that stores the memory address of another variable.

• Constructor is a special method that is used to initialize objects in a class.

• There are two types of constructors: default constructor and parameterized constructor.

• Polymorphism is the ability of an object...read more

Yes, C# supports multiple inheritance through interface implementation and class inheritance.

• C# does not support multiple inheritance through class inheritance alone.

• To achieve multiple inheritance, a class can inherit from one class and implement multiple interfaces.

• Example: class MyClass : MyBaseClass, IInterface1, IInterface2 { }

Array of pointers is an array containing memory addresses of variables, while pointer to an array is a pointer pointing to the first element of an array.

• Array of pointers can be used to store multiple strings, each string being a pointer to a character array.

• Pointer to an array can be used to access elements of an array using pointer arithmetic.

• Array of pointers can be dynamically allocated using malloc() function.

• Pointer to an array can be passed as an argument to a function...read more

Software is used in electrical engineering for designing, simulation, and control of electrical systems.

• Software is used for designing and simulating electrical circuits and systems

• Control systems for power generation and distribution are implemented using software

• Software is used for data analysis and visualization in electrical engineering

• Examples include SPICE for circuit simulation, MATLAB for control systems, and LabVIEW for data acquisition and analysis

3G and 4G are mobile network technologies. G stands for generation.

• 3G provides faster data transfer rates than 2G, while 4G provides even faster rates than 3G.

• 4G also supports advanced features like VoLTE and carrier aggregation.

• G stands for generation and refers to the evolution of mobile network technology.

• 5G is the latest generation of mobile network technology, offering even faster speeds and lower latency.

To increase profit, one can focus on increasing revenue or reducing expenses.

• Increase sales by expanding customer base or introducing new products/services

• Reduce costs by optimizing processes or negotiating better deals with suppliers

• Implement cost-cutting measures such as reducing staff or outsourcing non-core functions

• Invest in marketing and advertising to increase brand awareness and attract more customers

• Analyze financial data to identify areas of inefficiency and take co...read more

JavaScript cannot be embedded directly in CSS, but can be used in conjunction with CSS to manipulate styles dynamically.

• JavaScript can be used to dynamically change CSS properties of elements on a webpage

• This can be achieved by selecting the element using JavaScript and then modifying its style properties

• For example, you can change the background color of an element when a button is clicked using JavaScript

Security for a web API can be provided through authentication, encryption, and rate limiting.

• Implement authentication mechanisms such as OAuth or API keys to ensure only authorized users can access the API.

• Use encryption to protect sensitive data being transmitted over the network.

• Implement rate limiting to prevent excessive requests and potential denial of service attacks.

• Regularly update and patch the API to address any security vulnerabilities.

• Monitor API usage and logs fo...read more

A pointer is a variable that stores the memory address of another variable. It is used to manipulate data indirectly.

• Pointers are used to dynamically allocate memory

• Pointers are used to pass arguments by reference

• Pointers are used to create data structures like linked lists and trees

An object is an instance of a class. A class is a blueprint for creating objects.

• An object is a data structure that contains data and methods.

• A class is a template or blueprint for creating objects.

• Objects are created from classes using the 'new' keyword.

• Classes define the properties and behaviors of objects.

• Inheritance allows classes to inherit properties and behaviors from other classes.

• Polymorphism allows objects to take on multiple forms or behaviors.

Understanding OOP concepts is crucial for system software engineering, focusing on encapsulation, inheritance, and polymorphism.

• Encapsulation: Bundling data and methods that operate on the data within one unit, e.g., a class in Java.

• Inheritance: Mechanism to create a new class using properties of an existing class, e.g., class Dog extends Animal.

• Polymorphism: Ability to present the same interface for different data types, e.g., method overriding in subclasses.

Microprocessor is a CPU on a single chip while Micro-controller is a CPU with integrated memory and peripherals.

• Microprocessor is used in general-purpose computing while Micro-controller is used in embedded systems.

• Microprocessor requires external memory and peripherals while Micro-controller has them integrated.

• Examples of Microprocessors are Intel Pentium, AMD Ryzen while examples of Micro-controllers are Arduino, Raspberry Pi.

• Microprocessors are more powerful and expensive...read more

Program to reverse a string

• Create an empty string to store the reversed string

• Iterate through the original string from end to start

• Append each character to the new string

• Return the reversed string

Data structures like stack and queue have real-life applications in various fields.

• Stack: browser history, undo functionality in text editors

• Queue: waiting in line at a grocery store, printer queue

• Linked List: train cars linked together, playlist in music apps

Core Java concepts include OOP principles, data types, and collections, which are essential for effective programming.

• Java is an object-oriented programming language, emphasizing encapsulation, inheritance, and polymorphism.

• Collections framework provides data structures like List, Set, and Map for storing and manipulating groups of objects.

• ArrayList is a resizable array implementation of the List interface, allowing dynamic array size.

• HashMap stores key-value pairs and provid...read more

Slew rate is the rate at which an electrical signal changes over time.

• Slew rate measures how quickly the voltage of a signal can change.

• It is typically expressed in volts per microsecond (V/μs).

• A high slew rate indicates a signal can change rapidly, while a low slew rate indicates a slower change.

• Slew rate is important in applications where fast signal transitions are required, such as in amplifiers or digital circuits.

Hamming distance is the number of positions at which the corresponding symbols are different between two strings of equal length.

• Hamming distance is used in coding theory, information theory, and cryptography.

• It is also used in DNA analysis to measure the genetic distance between two sequences.

• For example, the Hamming distance between '10101' and '11100' is 2.

• It can be calculated by comparing each symbol in the two strings and counting the number of differences.

• Hamming distan...read more

Sasken technologies is a leading provider of cutting-edge software solutions.

• Sasken has a strong reputation for delivering high-quality software solutions.

• The company has a diverse range of clients across various industries.

• Sasken offers a great work culture and opportunities for career growth.

• The company has a strong focus on innovation and staying ahead of industry trends.

• Sasken has a proven track record of success in the system software engineering field.

Hashmap in C/C++ stores key-value pairs using a hash function for fast retrieval.

• Hashmap uses a hash function to map keys to indices in an array.

• Collision handling is done using techniques like chaining or open addressing.

• Hashmap allows for fast insertion, deletion, and lookup of key-value pairs.

• Example: std::unordered_map in C++ implements a hashmap.

• Debugging hashmap code involves checking hash function, collision resolution, and data retrieval.

Digital communication is the transmission of information through digital signals.

• Digital communication uses binary code to represent data.

• It can be done through various mediums such as wires, fiber optics, or wireless signals.

• Examples include email, text messaging, and video conferencing.

• Digital communication allows for faster and more efficient transmission of information compared to analog communication.

Search for a target value in a row-wise and column-wise sorted 2D array.

• Start from the top right corner of the array

• If the target value is less than the current element, move left

• If the target value is greater than the current element, move down

• Repeat until the target value is found or the boundaries of the array are reached

A program to print name using an array of strings.

• Declare an array of strings with the name.

• Assign the name to the array.

• Loop through the array and print each string.