29 Facts About TCP protocols

1.

TCP protocols provides reliable, ordered, and error-checked delivery of a stream of octets between applications running on hosts communicating via an IP network.

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2.

TCP protocols is connection-oriented, and a connection between client and server is established before data can be sent.

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3.

However, there are vulnerabilities in TCP protocols, including denial of service, connection hijacking, TCP protocols veto, and reset attack.

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4.

TCP protocols detects these problems, requests re-transmission of lost data, rearranges out-of-order data and even helps minimize network congestion to reduce the occurrence of the other problems.

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5.

Once the TCP protocols receiver has reassembled the sequence of octets originally transmitted, it passes them to the receiving application.

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6.

TCP protocols is used extensively by many internet applications, including the World Wide Web, email, File Transfer Protocol, Secure Shell, peer-to-peer file sharing, and streaming media.

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7.

TCP protocols is optimized for accurate delivery rather than timely delivery and can incur relatively long delays while waiting for out-of-order messages or re-transmissions of lost messages.

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8.

TCP protocols is a reliable stream delivery service which guarantees that all bytes received will be identical and in the same order as those sent.

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9.

Since packet transfer by many networks is not reliable, TCP protocols achieves this using a technique known as positive acknowledgement with re-transmission.

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10.

The TCP protocols segment is then encapsulated into an Internet Protocol datagram, and exchanged with peers.

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11.

Term TCP protocols packet appears in both informal and formal usage, whereas in more precise terminology segment refers to the TCP protocols protocol data unit, datagram to the IP PDU, and frame to the data link layer PDU:.

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12.

TCP protocols connection is managed by an operating system through a resource that represents the local end-point for communications, the Internet socket.

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13.

TCP protocols uses a sequence number to identify each byte of data.

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14.

TCP protocols uses an end-to-end flow control protocol to avoid having the sender send data too fast for the TCP protocols receiver to receive and process it reliably.

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15.

TCP protocols uses a number of mechanisms to achieve high performance and avoid congestive collapse, a gridlock situation where network performance is severely degraded.

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16.

The TCP protocols receiver sends a D-ACK to indicate that no segments were lost, and the TCP protocols sender can then reinstate the higher transmission rate.

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17.

The TCP protocols window scale option, as defined in RFC 1323, is an option used to increase the maximum window size to 1 gigabyte.

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18.

TCP protocols timestamps, defined in RFC 1323 in 1992, can help TCP protocols determine in which order packets were sent.

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19.

TCP protocols timestamps are not normally aligned to the system clock and start at some random value.

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20.

TCP protocols timestamps are used in an algorithm known as Protection Against Wrapped Sequence numbers, or PAWS.

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21.

When finished, TCP protocols informs the application and resumes back to the stream queue.

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22.

An example is when TCP protocols is used for a remote login session, the user can send a keyboard sequence that interrupts or aborts the program at the other end.

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23.

TCP protocols veto gives the attacker less control over the communication, but makes the attack particularly resistant to detection.

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24.

Each side of a TCP protocols connection has an associated 16-bit unsigned port number reserved by the sending or receiving application.

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25.

Multipath TCP protocols is an ongoing effort within the IETF that aims at allowing a TCP protocols connection to use multiple paths to maximize resource usage and increase redundancy.

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26.

Multipath TCP protocols is used to support the Siri voice recognition application on iPhones, iPads and Macs.

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27.

TCP protocols Fast Open is an extension to speed up the opening of successive TCP protocols connections between two endpoints.

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28.

TCP protocols Cookie Transactions is an extension proposed in December 2009 to secure servers against denial-of-service attacks.

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29.

One way to overcome the processing power requirements of TCP protocols is to build hardware implementations of it, widely known as TCP protocols offload engines.

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