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Network Protocols


Is a set of rules and formats for sending and receiving data successfully over the network.


  • TCP/IP is standard protocol used to communicate over the internet.
  • Every protocol has advantages and some disadvantages.
  • Protocols differs in their functioning at various levels.
  • Some protocols are simpler, reliable and faster than others.
  • Protocol are either implemented on software or hardware.

Layer levels protocols

Application layer protocols:

  • DHCP (Dynamic Host Configuration Protocol)
  • DNS (Domain Name System)
  • FTP (File Transfer Protocol)
  • HTTP (Hypertext Transfer Protocol)
  • MIME (Multipurpose Internet Mail Extensions)
  • POP and POP3 (Post Office Protocol(version 3))
  • RTSP (Real Time Streaming Protocol)
  • SHTTP (Secure Hypertext Transfer Protocol)
  • SMTP (Simple Mail Transfer Protocol)
  • SSH (Secure Shell Protocol)
  • Telnet (Telnet Remote Protocol)
  • TFTP (Trivial File transfer Protocol)
  • TLS (Transport Layer Security Protocol)
  • URL (Universe Resource Locator)

Transport layer protocols:

  • TCP (Transmission Control Protocol)
  • UDP (User Datagram Protocol)
  • Datagram Congestion Control Protocol (DCCP)
  • Stream Control Transmission Protocol (SCTP)

Internet layer protocols:

  • IP (Internet Protocol(IPv4)
  • IPv6 (Internet Protocol)
  • ICMP (Internet Control Message Protocol)
  • IGMP (Internet Group Management Protocol
  • IPsec (IP Security)

Link layer protocols:

  • ARP (Address Resolution Protocol)
  • RARP (Reverse Address Resolution Protocol)
  • SLIP (Serial Line IP)
  • Ethernet

Tip Box

Startup computer fast

For Windows

  • Open cmd ( command prompt).
  • Type msconfig and enter.
  • Choose Startup tab.
  • There you find list of applications running at startup.
  • Just disable the application which are not needed at the startup.
  • Apply it, and this will prompt you to restart computer.
  • Restart it and check the speed of the computer.


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