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- 4. [Socket] What is a socket? Suppose a process in Host C has a UDP socket with port number6789. Suppose both Host A and Host B send a UDP segment to Host C with destination portnumber 6789. Will both segments be directed to the same socket at Host C? If so, how will theprocess at Host C know that these two segments originated from two different hosts? 5. [Demultiplex] Define multiplexing and demultiplexing. Briefly explain how TCP demultiplexing isdifferent than UDP demultiplexing. 6. [rdt] Consider a reliable data transfer protocol that uses only negative acknowledgments.Suppose the sender sends data only infrequently. Would a NAK-only protocol be preferable to aprotocol that uses ACKs? Why? Now suppose the sender has a lot of data to send and the end-to-end connection experiences few losses. In this second case, would a NAK-only protocol bepreferable to a protocol that uses ACKs? Why?Two processes C and S are involved in a remote invocation, with C acting as the client while S actsas the server.• Highlight the underlying request-reply protocol using its primitives.• S did not respond on time to the request issued by C. Explain the steps taken by bothprocesses using the at-least-once semantics.serialize and deserialize C++ //In a client/server application, required to transmit objects of type student as defined : struct student{ char name[20]; float gpa; address* addr; } struct address{ char street[20]; char city[20]; char country[20]; }//Develop the following functions to serialize and deserialize a student: struct serialized_student{ //To be implemented by students }struct serialized_student student_serializer(student s){ //To be implemented by students } student student_deserializer(){ //To be implemented by students }
- When an order is not followed, does it send a message to VA page 30? A software-managed TLB would outperform a hardware-managed TLB in the following cases:Socket programming in c language in windows Implement one server and three clients using multithreaded exchanging messages between them and then doing checksum error detection or parity1- Considering a communication with client–server connectionless (datagram) sockets, draw a flowchart for the client and server
- Language : C / C++ / Python Develop a simple Web server (parity generator) that is capable of processing the request from client. Create a socket connection, when contacted by the client the server has to process the request and give back the result. Client part The client has to send the data in bits (e.g 1100011000). It also has to send the number of frames it has to separate the data (e.g. 2 frames) Server part Server has to split the data into 2 parts (Frame 1 -> 11000; Frame 2 ->11000) and send back to the client. For each part server has to find the even parity and sendUsing the example of making a phone call, briefly illustrate the capabilities of Network APIs. (functions relating to sockets)Servers can be designed to limit the number of open connections. A typical example, a server may wish to have only N socket connections at any point in time. As soon as N connections are made, the server will not accept another incoming connection until an existing connection is released. 4.3 How can you ensure that a binary semaphore is implemented in the above scenario?
- The URL Connection class can be used to read and write data: Select one: a.To the specified resource referred by the HttpResponse and the URL b.To the specified resource referred by the URL c.To the specified resource referred by the HttpServer and the URL d.To the specified resource referred by the ServerSocket and the URLTwo processes CLT and SRV are involved in remote invocation with CLT acting as the client,while SRV acts as the server.(a) Highlight the underlying request-reply protocol using its primitives. (b) The request issued by C was not replied to on time. Explain the steps taken by bothprocessesusing the at-least-once semantics.(c) Explain the steps taken by both processes using the exactly-once semantics when CLT does not receive the response.A local write system call is not an idempotent operation but the write remote procedure call in NFS is idempotent. What makes the NFS RPC call idempotent? a) The write RPC sends data from the client's buffer cache rather than from the user's program. b) One of the parameters is the file offset. c) The RPC system supports at-most-once semantics. d) Each procedure call contains a unique sequence number so duplicates can be discarded.