Interview Preparation Articles

Interview preparation requires proficient knowledge of C/C++. This article has just been recently written (July 2013) and will be elaborated soon; the articles in RED are waiting to be written. The hope is that this article will be "one-stop-shop" for most common C/C++ interview questions.

Frequently Asked Topics

• What is a volatile variable?
• What is a static keyword in C/C++?
• Linked List
• About extern keyword in C/C++
• Pointers in C
• Structures and Unions
• Inline Specifier
• Dynamic memory allocation in C
• Standard Predefined Macros
• Recursive Function
• Name Mangling

C++ Object Oriented Topics

• What is "virtual", "polymorphism" and "abstract class"?
• Dynamic Memory Allocation in C++

Operating Systems Topics

FreeRTOS Tutorial

FreeRTOS is a real-time OS that has many ports for various different controllers. This is a great system to learn about because it gives you the fundamental knowledge of an operating system while making it incredibly easy to learn the material. Here's a must-read tutorial :

• FreeRTOS Tutorial

Other OS Topics

• Synchronization Primitives - Mutexes, Spinlocks, Queues etc.
• Kernel Space and User Space

Miscellaneous Topics

Bit Fiddling

• Bit Fiddling
• Bitmasking Tutorial
• Bit Structures and Unions

BSS and Data Segments

• Where do Global and static variables stored ?

Others

• String Manipulation
• All about pointers
• Null Pointer
• Add without using any arithmetic operators
• Data Structure Alignment-Packing of Structures
• Priority Queues
• Integer promotion in C

Sorting Topics

• Sorting

Algorithms

• Searching Algorithms
• Graph Algorithms

Embedded C Interview Questions and Answers

The following link would navigate to some questions that are very commonly asked in interviews(Cisco,Intacct,WNI etc.). It encloses some C programs as well.

• Interview Preparation Question and Answer