Difference Between TCP and UDP Protocol described in a nice way.
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Descripción: Ensayo sobre protocolo UDP y TCP.
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COMPUTER NETWORKS
Q1
Difference between TCP and UDP?
ANS:
Transmission Control Protocol (TCP) and User Datagram Protocol (UDP)is a transportation protocol that is one of the core protocols of the Internet protocol suite. Both TCP and UDP work at transport layer TCP/IP model and both have very different usage. Difference between TCP and UDP TCP
UDP
Reliability: TCP is connection-oriented protocol. Reliability: UDP is connectionless protocol. When a file or message send it will get delivered When you a send a data or message, you don't unless connections fails. If connection lost, the know if it'll get there, it could co uld get lost on the server will request the lost part. There is no way. There may be corruption co rruption while corruption while transferring a message. transferring a message. Ordered : If you send two messages along a Ordered : If you send two messages out, you connection, one after the other, you know the don't know what order they'll t hey'll arrive in i.e. no first message will get there first. You don't have ordered to worry about data arriving in the wrong order. eavyweight : H eavyweight
- when the low level parts of the Lightweight : No ordering of messages, no TCP "stream" arrive in the wrong o rder, resend tracking connections, etc. It's just fire and requests have to be sent, and all the out of forget! This means it's a lot quicker, and t he sequence parts have to be put back together, so network card / OS have to do very little work requires a bit of work to piece together. to translate the data back from the packets.
Streaming : Data is read as a "strea "stream," m," with nothing distinguishing where one packet ends and another begins. There T here may be multiple packets per read ca ll. ll.
Datagrams: Packets are sent individually and are guaranteed to be whole if they arrive. One packet per one read call.
Examples: World Wide Web (A pache TCP port 80), e-mail (SMTP TCP port 25 Postfix MTA), File Transfer Protocol (FTP port 21) and Secure Shell (OpenSSH port 22) etc.
Examples: Domain Name System (D NS UDP port 53), streaming media applications such as IPTV or movies, Voice over IP (VoIP), Trivial File Transfer Protocol (TFTP) and online multiplayer games etc
TCP FRAME STRUCTURE
UDP FRAME STRUCTURE
Q2: DIFFERENCE BETWEEN LAN,MAN,WAN?
ANS: LAN 1. LAN stands for Local Area Network. 2. Used Guided Media
3. A communication network linking a number of stations in same local area. 4. LAN generally provides a high-speed 100 Kbps to 100 M bps. MAN 1. MAN stands for Metropolitan Area Network. 2. Use may be Guided or may be Unguided media.
3. This network shares the characteristics of packet broadcasting networks. 4. A MAN is optimized for a large geographical area than LAN.
WAN 1. WAN stands for Wide
Area Network.
2. Used Unguided media.
3. A communication network distinguished from a Local Area Network. 4. Its long distance communications, which may or may not be provided by public packet
network
Q3 DIFFERENCE BETWEEN BROADCAST AND P 2P NETWORK?
ANS: Broadcast Network : Let us imagine the scenario Teacher taking the attendance in a class room. He will call every roll no in the classroom , all will listen but only the respective person will respond. So Broad cast means "sending a signal where multiple parties may hear a single sender". Point to point Network : Here the scenario is Teacher taking the attendance in an examination hall. He will go to each member of the room and will take the attendance individually. Here only one person listen and he only responds to the call. So Point to point Network is "A method of communication where one "point" (person or entity) speaks to another entity"