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+# Socket-Programming-in-C
+
+In 
+Assignment1/
+
+These questions are a part of assignment of Computer Networks course.
+QUESTION_1
+Write a client-server program that provides text and voice chat facility using datagram socket.
+Your application allows a user on one machine to talk to a user on another machine. Your
+application should provide non blocking chat facility to the users. This means, the user can send
+its message at any time without waiting for a reply from the other side.
+(Hint: Use select() system call).
+NOTE-I DID NOT PROVIDE VOICE CHAT FACILITY
+
+QUESTION_2
+Write a TCP client-server system to allow client programs to get the system date and time from
+the server. When a client connects to the server, the server gets the local time on the machine and
+sends it to the client. The client displays the date and time on the screen, and terminates. The
+server should be an iterative server.
+
+QUESTION_3
+Write a simple UDP iterative server and client to convert a given DNS name (for example,
+www.google.com) into its IP address(es). The client will read the DNS name as a string from the
+user and send it to the server. The server will convert it to one or more IP addresses and return it
+back to the client. The client will then print ALL the addresses returned, and exit. For basic UDP
+socket communication, see the sample program given. To get the IP address corresponding to a
+DNS name, use the function gethostbyname(). Look up the description of the function from the
+man page and the tutorial on the webpage.
+
+QUESTION_4
+Now suppose that the same server will act both as the time server in Problem 1 and the DNS
+server in Problem 2. Thus, some clients will request over the UDP socket for name-to-IP
+conversion, and some will connect over a TCP socket for the time. Thus, the server now needs to
+open both a TCP socket and a UDP socket, and accept request from any one (using the accept() +
+read()/send() call for TCP, and recvfrom() call for UDP), whichever comes first. Use the select()
+call to make the server wait for any one of the two connections, and handle whichever comes
+first. All handlings are iterative.
+
+
+Detailed explanation in Explanation.pdf.