Cyient Fpga Design Engineer Interview Questions and Answers

Q1. What are storage class
Ans. 
Storage classes in C specify the scope and lifetime of variables.
• Storage classes include auto, register, static, and extern.

• Auto variables are local to a block and have automatic storage duration.

• Register variables are stored in CPU registers for faster access.

• Static variables retain their value between function calls.

• Extern variables are declared in one file and can be used in another file.
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Q2. Explain structure program
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A structure program is a program that uses structures to group related data together.
• Structures in C programming allow you to group related data together under one name.

• You can define a structure using the 'struct' keyword.

• Structures can contain different data types, including int, float, char, and even other structures.

• You can access the members of a structure using the dot operator.

• Example: struct employee { int id; ...read more
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Normal basic apti lr conceptual questions

Q1. What is microcontroller? have you worked on any microcontroller? c++ basics polymorphism
Ans. 
A microcontroller is a small computer on a single integrated circuit that contains a processor core, memory, and programmable input/output peripherals.
• Microcontrollers are commonly used in embedded systems for controlling various devices and appliances.

• They are programmed using languages like C or assembly language.

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

• Microcontrollers are often us...read more
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Q2. Tell me about your project?
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Q3. Prime no. program?
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Q1. What is polymorphism
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Q2. What is inheritance
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Q1. Discussion about salary and bond
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Basic c datastructucture networking l2 l3 questions

Q1. Question on projects.
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Q2. How packet goes from source to destination.
Ans. 
Packets are sent from source to destination through a series of network devices using routing protocols.
• Packet is created at the source with source and destination IP addresses.

• Packet is sent to the default gateway or router.

• Router checks its routing table to determine the next hop for the packet.

• Packet is forwarded to the next hop until it reaches the destination.

• Destination receives the packet and sends an acknowledg
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Q3. Delete a node from single linked list.
Ans. 
To delete a node from a single linked list, we need to find the node and update the pointers.
• Traverse the list to find the node to be deleted

• Update the previous node's pointer to point to the next node

• Free the memory of the node to be deleted
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Q4. Dynamic memory alocation in c
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Dynamic memory allocation in C allows allocation of memory at runtime.
• Dynamic memory allocation is done using functions like malloc(), calloc(), realloc() and free().

• malloc() allocates memory block of specified size and returns a pointer to the first byte of allocated memory.

• calloc() allocates memory block of specified size and initializes all bits to zero.

• realloc() changes the size of previously allocated memory block...read more
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Q5. Interprocess communication in OS
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Interprocess communication is a mechanism that allows processes to communicate with each other in an OS.
• IPC mechanisms include pipes, sockets, message queues, shared memory, and signals.

• IPC can be used for synchronization, data sharing, and coordination between processes.

• IPC can be implemented using system calls such as fork(), pipe(), socket(), and msgget().
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Q1. Program to reverse an array
Ans. 
Program to reverse an array of strings
• Create a function that takes an array of strings as input

• Use a loop to iterate through the array and swap elements from start to end

• Return the reversed array
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Q2. Program to count the number of words in a string
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Program to count the number of words in a string using array of strings.
• Split the string into an array of strings using a delimiter like space.

• Iterate through the array and count the number of elements.

• Handle edge cases like multiple spaces between words.
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Q1. Linux: Explain system calls. Which system calls you used? IPC: which one you used? How to start yacto project? Diff betn process and thread. Explain I2c Difference between I2c And SPI difference between s...read more
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Q2. Explain I2c diff btn i2c and spi diff btn hw and sw interrupt
Ans. 
I2C is a serial communication protocol used to connect multiple devices with two wires. SPI is another serial protocol with four wires.
• I2C uses a master-slave architecture while SPI uses a master-master architecture.

• I2C supports multiple devices on the same bus while SPI requires a separate chip select line for each device.

• Hardware interrupts are triggered by external events while software interrupts are triggered by s
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Q1. Write a code by using recursive function. Basic embedded C questions
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