Infosys System Engineer Hardware Interview Questions, Process, and Tips

Q1. OOPs concepts details
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Q2. Tell me about yourself
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Aptitude questions and one basic coding question

Q1. What are pointers?
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Q2. Projects I worked on?
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Q3. What do you know about AI-ML?
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Q1. What are pointers in c++
Ans. 
Pointers in C++ are variables that store memory addresses of other variables.
• Pointers are used to access and manipulate memory directly.

• They are denoted by an asterisk (*) before the variable name.

• Example: int *ptr; // declares a pointer to an integer variable

• Example: ptr = # // assigns the address of 'num' to the pointer
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Q2. Html, Css questions
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Q3. What are html tags?
Ans. 
HTML tags are used to define the structure and content of a web page.
• HTML tags are enclosed in angle brackets, such as <tag>.

• They are used to format text, insert images, create links, etc.

• Examples include <p> for paragraphs, <img> for images, <a> for links.
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Q4. What are different type of Css styling?
Ans. 
Different types of CSS styling include inline, internal, external, and imported stylesheets.
• Inline CSS is applied directly to an HTML element using the style attribute.

• Internal CSS is defined within the head section of an HTML document using the style tag.

• External CSS is stored in a separate file and linked to the HTML document using the link tag.

• Imported stylesheets allow for modular CSS by importing one stylesheet in
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Q5. Classes and objects in c++
Ans. 
Classes and objects in C++ are used to create user-defined data types with their own properties and behaviors.
• Classes are used to define the blueprint for objects, containing data members and member functions.

• Objects are instances of classes, created using the 'new' keyword.

• Encapsulation, inheritance, and polymorphism are key concepts in object-oriented programming with C++.
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Include aptitude questions and english grammar

Q1. Explain all sortings along with time complexity
Ans. 
Explanation of various sorting algorithms and their time complexities
• Bubble Sort - O(n^2)

• Selection Sort - O(n^2)

• Insertion Sort - O(n^2)

• Merge Sort - O(n log n)

• Quick Sort - O(n log n)

• Heap Sort - O(n log n)

• Radix Sort - O(nk)
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Q2. Some scenerio based questions
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