**In Java or C++** Build a system which allows a client to practice multiple cho
ID: 3603569 • Letter: #
Question
**In Java or C++**
Build a system which allows a client to practice multiple choice tests in math. Design and implement a client and server programs over a TCP network socket connection, which will do the following:
Client:
Connect to server
Create new contact by providing <new user> command
And password by providing <psw= password>
Login to the server if he already registered by providing the user name and password
Asking for the math exams
Can redo the exams again
Can show the scores of his tests
Close the connection
Server:
Wait for a client connection.
Store the user name and password of the users
Verify if the user in registered
When a client connection is accepted (if user is registered) send an acknowledgement (a welcome message) as a string of text.
From Questions database, server sends the first test questions plus three possible answers to the client.
Receives the answer from the client. Stores and evaluates the answer. This process is repeated three times.
After that the server sends score to the client and if he like to repeat the test
Store the score of the test for that user
Questions database:
Q1: (A + B)*(A+B)
1. A*A + B*B
2. A*A +A*B + B*B
3. A*A +2*A*B + B*B (correct)
Q2: (A + B)*(A - B)
1. A*A + 2*B*B
2. A*A - B*B (correct)
3. A*A -2*A*B + B*B
Q3: sin(x)*sin(x) + cos(x)*cos(x)
1. 1 (correct)
2. 2
3. 3
Explanation / Answer
server
clint
#include <stdio.h>
#include <sys/socket.h>
#include <stdlib.h>
#include <netinet/in.h>
#include <string.h>
#define PORT 8080
int main(int argc, char const *argv[])
{
struct sockaddr_in address;
int sock = 0, valread;
struct sockaddr_in serv_addr;
char *hello = "Hello from client";
char buffer[1024] = {0};
if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0)
{
printf(" Socket creation error ");
return -1;
}
memset(&serv_addr, '0', sizeof(serv_addr));
serv_addr.sin_family = AF_INET;
serv_addr.sin_port = htons(PORT);
// Convert IPv4 and IPv6 addresses from text to binary form
if(inet_pton(AF_INET, "127.0.0.1", &serv_addr.sin_addr)<=0)
{
printf(" Invalid address/ Address not supported ");
return -1;
}
if (connect(sock, (struct sockaddr *)&serv_addr, sizeof(serv_addr)) < 0)
{
printf(" Connection Failed ");
return -1;
}
send(sock , hello , strlen(hello) , 0 );
printf("Hello message sent ");
valread = read( sock , buffer, 1024);
printf("%s ",buffer );
return 0;
}
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.