Network Protocol | Computer Science for Grade 12 PDF Download

 Page 1


Network Protocols
Network protocols are sets of rules and regulations that
dictate how to format, transmit and receive data on
computer network devices – like servers, routers to
endpoints -- can communicate regardless of the
differences in their infrastructures, designs or
standards.
To successfully send or receive information, network
devices must accept and follow protocol conventions .
Page 2


Network Protocols
Network protocols are sets of rules and regulations that
dictate how to format, transmit and receive data on
computer network devices – like servers, routers to
endpoints -- can communicate regardless of the
differences in their infrastructures, designs or
standards.
To successfully send or receive information, network
devices must accept and follow protocol conventions .
Network Protocols
TCP/IP (Transmission Control Protocol/Internet Protocol)- also referred to as
the Internet Protocol Suite, is the World Wide Web's core communication
system which enables every Internet-based device to communicate with
every other such devices simultaneously.
An IP address is the unique numerical address of a device in a computer
network that uses Internet Protocol for communication. The IP address allow
you to pinpoint a particular device from the billions of devices on the
Internet. Static IP Addresses-usually never change but they may be changed
as a result of network administration.
Dynamic IP Addresses-These IP addresses are temporary and assigned to a
computer when they get connected to the Internet each time
Two most used ip versions are ipv4 and ipv6. IPv4 is a 32-Bit IP Address. IPv6
is 128 Bit IP Address. IPv4 is a numeric address, and its binary bits are
separated by a dot (.) IPv6 is an alphanumeric address whose binary bits are
separated by a colon (:)
Page 3


Network Protocols
Network protocols are sets of rules and regulations that
dictate how to format, transmit and receive data on
computer network devices – like servers, routers to
endpoints -- can communicate regardless of the
differences in their infrastructures, designs or
standards.
To successfully send or receive information, network
devices must accept and follow protocol conventions .
Network Protocols
TCP/IP (Transmission Control Protocol/Internet Protocol)- also referred to as
the Internet Protocol Suite, is the World Wide Web's core communication
system which enables every Internet-based device to communicate with
every other such devices simultaneously.
An IP address is the unique numerical address of a device in a computer
network that uses Internet Protocol for communication. The IP address allow
you to pinpoint a particular device from the billions of devices on the
Internet. Static IP Addresses-usually never change but they may be changed
as a result of network administration.
Dynamic IP Addresses-These IP addresses are temporary and assigned to a
computer when they get connected to the Internet each time
Two most used ip versions are ipv4 and ipv6. IPv4 is a 32-Bit IP Address. IPv6
is 128 Bit IP Address. IPv4 is a numeric address, and its binary bits are
separated by a dot (.) IPv6 is an alphanumeric address whose binary bits are
separated by a colon (:)
Network Protocols
IPv4 ADDRESS CLASS -
Of the five address classes, three —Class A, B, and C —were designated
for unicast single source –to –single destination communication.
Addresses in Class D were reserved for IP Multicast applications, which
allows one-to-many communication. Class E addresses were reserved
for experimental purposes.
Page 4


Network Protocols
Network protocols are sets of rules and regulations that
dictate how to format, transmit and receive data on
computer network devices – like servers, routers to
endpoints -- can communicate regardless of the
differences in their infrastructures, designs or
standards.
To successfully send or receive information, network
devices must accept and follow protocol conventions .
Network Protocols
TCP/IP (Transmission Control Protocol/Internet Protocol)- also referred to as
the Internet Protocol Suite, is the World Wide Web's core communication
system which enables every Internet-based device to communicate with
every other such devices simultaneously.
An IP address is the unique numerical address of a device in a computer
network that uses Internet Protocol for communication. The IP address allow
you to pinpoint a particular device from the billions of devices on the
Internet. Static IP Addresses-usually never change but they may be changed
as a result of network administration.
Dynamic IP Addresses-These IP addresses are temporary and assigned to a
computer when they get connected to the Internet each time
Two most used ip versions are ipv4 and ipv6. IPv4 is a 32-Bit IP Address. IPv6
is 128 Bit IP Address. IPv4 is a numeric address, and its binary bits are
separated by a dot (.) IPv6 is an alphanumeric address whose binary bits are
separated by a colon (:)
Network Protocols
IPv4 ADDRESS CLASS -
Of the five address classes, three —Class A, B, and C —were designated
for unicast single source –to –single destination communication.
Addresses in Class D were reserved for IP Multicast applications, which
allows one-to-many communication. Class E addresses were reserved
for experimental purposes.
Network Protocols
How TCP/IP WORKS -worksTCP/IP is a two-layered program: the higher
layer (TCP) disassembles message content into small "data packets" that
are then transmitted over the Internet to be re-assembled by the
receiving computer's TCP back into the message's original form.
Page 5


Network Protocols
Network protocols are sets of rules and regulations that
dictate how to format, transmit and receive data on
computer network devices – like servers, routers to
endpoints -- can communicate regardless of the
differences in their infrastructures, designs or
standards.
To successfully send or receive information, network
devices must accept and follow protocol conventions .
Network Protocols
TCP/IP (Transmission Control Protocol/Internet Protocol)- also referred to as
the Internet Protocol Suite, is the World Wide Web's core communication
system which enables every Internet-based device to communicate with
every other such devices simultaneously.
An IP address is the unique numerical address of a device in a computer
network that uses Internet Protocol for communication. The IP address allow
you to pinpoint a particular device from the billions of devices on the
Internet. Static IP Addresses-usually never change but they may be changed
as a result of network administration.
Dynamic IP Addresses-These IP addresses are temporary and assigned to a
computer when they get connected to the Internet each time
Two most used ip versions are ipv4 and ipv6. IPv4 is a 32-Bit IP Address. IPv6
is 128 Bit IP Address. IPv4 is a numeric address, and its binary bits are
separated by a dot (.) IPv6 is an alphanumeric address whose binary bits are
separated by a colon (:)
Network Protocols
IPv4 ADDRESS CLASS -
Of the five address classes, three —Class A, B, and C —were designated
for unicast single source –to –single destination communication.
Addresses in Class D were reserved for IP Multicast applications, which
allows one-to-many communication. Class E addresses were reserved
for experimental purposes.
Network Protocols
How TCP/IP WORKS -worksTCP/IP is a two-layered program: the higher
layer (TCP) disassembles message content into small "data packets" that
are then transmitted over the Internet to be re-assembled by the
receiving computer's TCP back into the message's original form.
Network Protocols
TCP/IP and Higher-Level Applications - Many higher-level
apps that ecommerce businesses need to be familiar
with utilize and/or are built on TCP/IP .
• FTP (the Internet's File Transfer Protocol)
• HTTP (the Internet's Hyper-text Transfer Protocol)
• Telnet, which enables logging on computers from
remote locations
• SMTP (Simple Mail Transfer Protocol)