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per second over UTP, STP, or fiber-optic media.
Firewall Firewall is considered the first line of defense in prote
information. For better security, data can be encrypted. A system
designed to prevent unauthorized access to or from a private
network. Firewalls are frequently used to prevent unau
Internet users from accessing private networks connected to the
Internet, especially Intranets all messages entering or leaving the
intranet pass through the firewall, which examines each message
and blocks those that do not meet the specified security criteria.
G
Gateway
A gateway links computers that use different data formats
together.
Group
Groups consist of several user machines that have similar
characteristics such as being in the same department.
H
HEX Short for hexadecimal refers to the base-
consists of 16 unique symbols: the numbers 0 to 9 and the letters
A to F. For example, the decimal number 15 is represented as F in
the hexadecimal numbering system. The hexadecimal system is
useful becaus
e it can represent every byte (8 bits) as two
consecutive hexadecimal digits. It is easier for humans to read
hexadecimal numbers than binary numbers.
I
IEEE Institute of Electrical and Electronic Engineers.
Intranet This is a private network,
inside an organization or company, that
