iWave Systems Technologies Interview Questions and Answers

Q1. Bitwise operations in C
Ans. 
Bitwise operations in C are used to manipulate individual bits of data in variables.
• Bitwise AND (&) - sets a bit to 1 only if both corresponding bits are 1

• Bitwise OR (|) - sets a bit to 1 if either of the corresponding bits is 1

• Bitwise XOR (^) - sets a bit to 1 if the corresponding bits are different

• Bitwise NOT (~) - inverts all the bits in a variable

• Left shift (<<) - shifts the bits to the left by a specified number o...read more
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Q2. Linked list in C programming
Ans. 
Linked list is a data structure in C programming where each element points to the next element in the list.
• Linked list is made up of nodes, each containing data and a pointer to the next node.

• Insertion and deletion operations are efficient in linked lists compared to arrays.

• Traversal in linked list requires iterating through each node starting from the head node.

• Example: struct Node { int data; struct Node* next; };

• Exa...read more
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Q3. Pointer manipulation in C
Ans. 
Pointer manipulation in C involves accessing and modifying memory addresses to work with data efficiently.
• Pointers are variables that store memory addresses.

• They are used to access and manipulate data directly in memory.

• Example: int *ptr; ptr = # *ptr = 10;
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Q1. Why should we hire you
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Q1. What is RTOS?
Ans. 
RTOS (Real-Time Operating System) manages hardware resources for real-time applications, ensuring timely task execution.
• RTOS is designed for systems that require precise timing and high reliability.

• Commonly used in embedded systems, such as automotive control systems.

• Examples include FreeRTOS, VxWorks, and QNX.

• RTOS supports multitasking, allowing multiple processes to run concurrently.

• It provides mechanisms for task sc...read more
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Q2. What is the project that you have done?
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Q3. What are the company products
Ans. 
Our company offers innovative software solutions, including web applications, mobile apps, and cloud services tailored for various industries.
• Web Applications: User-friendly platforms for e-commerce, such as an online shopping site.

• Mobile Apps: Intuitive apps for iOS and Android, like a fitness tracking app.

• Cloud Services: Scalable solutions for data storage and management, such as cloud-based file sharing.
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General aptitude and 10 technical question

Q1. Ec subject based
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Q1. Tell me about microcontroller micro processor
Ans. 
Microcontrollers are small computers on a single integrated circuit used to control electronic devices.
• Microcontrollers are designed for specific tasks and are often used in embedded systems.

• They typically have on-board memory, input/output peripherals, and a central processing unit.

• Examples include Arduino, Raspberry Pi, and PIC microcontrollers.
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