what are the most important TCP/IP protocols?

Question

What are the most important protocols that are members of the TCP/IP protocol suite?

Answer 1

TCP/IP is based on four Layers every Layer Consists of a Set of protocols as Follows:





1- Application Layer



DHCP · DNS · FTP · Gopher · HTTP · IMAP · IRC · NNTP · XMPP · POP · RTP · SIP · SMTP · SNMP · SSH · Telnet · RPC · RTCP · RTSP · TLS · SSL · SDP · SOAP · GTP · STUN · NTP · BGP · RIP ·



2- Transport Layer



TCP · UDP · DCCP · SCTP · RSVP · ECN ·



3- Internet Layer



IP (IPv4 · IPv6) · ICMP · ICMPv6 · IGMP · IPsec ·



4- Link Layer



ARP · RARP · NDP · OSPF · Tunnels · Media Access Control · Device Drivers ·



for more information ...check out this page:



http://en.wikipedia.org/wiki/TCP/IP

Answer 2

Terminal Control Protocol (TCP) and Internet Protocol (IP). Hope this helps...

Answer 3

URG: if this flag is set to 1 the packet must be processed urgently

ACK: if this flag is set to 1 the packet is an acknowledgement.

PSH (PUSH): if this flag is set to 1 the packet operates according to the PUSH method.

RST: if this flag is set to 1 the connection is reset.

SYN: The TCP SYN flag indicates a request to establish a connection.

FIN: if this flag is set to 1 the connection is interrupted.