1) What is Pointer use of it 2) Reverse Link list 3) String concatenation 4) Communication protocols i2c v/s SPI 5) IPC mechanism 6) Dynamic memory allocation related questions

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Pointer is a variable that stores the memory address of another variable. Used for dynamic memory allocation and accessing data structures.

Pointers are used to access and manipulate memory addresses directly.
Example: int *ptr; ptr = # *ptr = 10; // num now equals 10
Reverse Link list: Reverses the order of nodes in a linked list.
String concatenation: Combining two or more strings into a single string.
Communication protocols i2c v/s SPI: I2C is slower but uses fewer pins, SPI is faster but uses more pins.
IPC mechanism: Inter-process communication methods like pipes, sockets, shared memory.
Dynamic memory allocation: Allocating memory during runtime using functions like malloc, calloc, realloc.

1) What is Pointer use of it 2) Reverse Link list 3) String concatenation 4) Communication protocols i2c v/s SPI 5) IPC mechanism 6) Dynamic memory allocation related questions

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