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UNIT 4 (NETWORKING HARDWARE DEVICE (Network Interface Card: Provides the…
UNIT 4
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DATA PROTECTION ACT
Biometric: Retinal scans; Uses unique pattern on a person’s retina blood vessels. The retina blood vessels absorbs light more readily than the surrounding tissue and easy to identified in appropriate lighting.
Biometric: palm/finger print; Biometric authentication method based on the unique pattern of various characteristics of people’s palm/finger. Taken by a scanner or CCD and can be used for criminal, forensic or commercial applications.
Biometric: Face scan; Identify people by mapping their facial features. Face scans can aid forensic investigation and used to identify dead or unconscious individuals at crime scene
Magnetic stripe Read by swiping past a magnetic reading head. Magnetic stripe cards are commonly used in credit cards, identity cards, and transportation tickets
Smart Card Read by swiping past a magnetic reading head. Magnetic stripe cards are commonly used in credit cards, identity cards, and transportation tickets
Passport A plastic card with a built-in microprocessor, used typically to perform financial transactions.
Physical Token a small hardware device that the owner carries to authorize access to a network service. The device may be in the form of a smart card or may be embedded in a commonly used object such as a key fob.
Computer networks: A collection of computing devices that are connected in various ways in order to communicate and share resources.
However some connections are wireless, using radio waves or infrared signals
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TYPES OF NETWORKS:
LAN: Local Area Network, a network that connects a relatively small number of machines in a relatively close geographical area
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Example: Hospital, school, office, etc.
WAN: Wide Area Network, a network that connects two or more local-area networks over a potentially large geographical area
A network that uses a long-range telecommunication links to connect 2 or more LANs/computer house in different places far apart; towns, state, countries
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