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dynamic state list See dynamic routing.

dynamically allocated port TCP/IP port used by an application when needed. The port is not constantly used.

EEPROM See electrically erasable programmable read-only memory.

electrically erasable programmable read-only memory (EEPROM) A

special integrated circuit on expansion cards that allows data to be stored on the chip. If necessary, the data can be erased by a special configuration program. Typically used to store hardware configuration data for expansion cards.

electromagnetic interference (EMI) The interference that can occur during transmissions over copper cable because of electromagnetic energy outside the cable. The result is degradation of the signal.

electronic mail (e-mail) An application that allows people to send messages via their computers on the same network or over the Internet.

electrostatic discharge (ESD) A problem that exists when two items with dissimilar static electrical charges are brought together. The static electrical charges jump to the item with fewer electrical charges, causing ESD, which can damage computer components.

e-mail See electronic mail.

EMI See electromagnetic interference.

encoding The process of translating data into signals that can be transmitted on a transmission medium.

encryption key The string of alphanumeric characters used to decrypt encrypted data.

endpoint The two ends of a connection for transmitting data. One end is the receiver, and the other is the sender.

ESD See electrostatic discharge.

Ethernet A shared-media network architecture. It operates at the Physical and Data Link layers of the OSI model. As the media access method, it uses baseband signaling over either a bus or a star topology with CSMA/CD. The cabling used in Ethernet networks can be coax, twisted-pair, or fiber-optic. See also Carrier Sense Multiple Access/Collision Detection, Open Systems Interconnect.

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