Question

List two ways that inter -process communication is Achieved ?

Answer 1

Answer)
The inter-process communication is the technique using which the processes communicate with other processes and thus synchronize their operations. The inter-process communication is the methods using which they co-operate. The inter-process communication can be done by:
a. Using shared memory - Using shared memory the processes can share information with each other and thus participate in the inter-process communication. The processes keep the computations or resources as the records in the memory and when other processes need to use that shared information then it will check the record stored in shared memory. Thus processes can store and deliver information as records using the shared memory.
b. Messaging Passing Method - In this process the process communication occurs without using any type of shared memory. In this method, the processes to communicate establish a communication link and start exchanging messages. Primitives will be such as:
send(message) and receive(message).
The message passing is the method using which the process can send the message to other processes using a direct or indirect approach. This method allows the multiple processes which are connected to read and write data using the message queue even if they are not connected to each other. The messages are firstly stored in the queue and then the receiver receives or retrieves the messages. The message-passing model is easier to implement and build and is more tolerant of high communication latency.