BTM 200- UNIT 5- COMMUNICATION
AND NETWORKS
What does WAN stand for? - CORRECT ANSWER-Wide Area Network. It allows
communication around the whole world. It is meant to help others share resources.
Example: The Internet
What does MAN stand for? - CORRECT ANSWER-Metropolitan Area Network.
Communications network covering a
city or a suburb. Many cellphone systems are MANs.
What does LAN stand for and what is it? - CORRECT ANSWER-Local Are Network.
Connects computers and devices in a limited
geographic area, such as one office, one building, or a group of buildings close
together. (A home area network is a LAN.)
What does P2P stand for? - CORRECT ANSWER-peer-to-peer. All computers on the
network are "equal" and communicate directly with one another, without relying on
servers.
client/server network - CORRECT ANSWER-A network that uses centrally administered
computers, known as "servers", to enable resource sharing for and to facilitate
communication between the other computers on the network.
Intranets - CORRECT ANSWER-use infrastructure and standards of the Internet and
the web, but for an organization's internal use only.
Extranet - CORRECT ANSWER-Similar to an intranet, but allows specific users outside
of the organization to access internal information systems.
VPNs - CORRECT ANSWER-(virtual private networks): use a public network (usually
the Internet) plus intranets and extranets to connect an organization's various sites) but
on a private basis, via encryption and authentication; regular Internet users do not have
access to the VPN's data and information.
Digital Convergence - CORRECT ANSWER-is the gradual merger of computing and
communications into a new information environment, in which the same information is
exchanged among many kinds of equipment, using the language of computers.
, Digital - CORRECT ANSWER-Signals that computer uses to process a series of datas
0s and 1s, off and on.
Analog - CORRECT ANSWER-signals that use wave variations, continuously changing.
Can an analog data be converted to digital data? - CORRECT ANSWER-yes, by using
modems
Modem - CORRECT ANSWER-short for modulate/ demodulate. Communications
hardware device that facilitates the transmission of data.
Firewall - CORRECT ANSWER-a system of hardware and/or software that protects the
system from intruders. (security software for the intranets, extranets and VPNs).
Hosts - CORRECT ANSWER-Client/server network has a host computer, which
controls the network.
Nodes - CORRECT ANSWER-any device attached to the network
Packets - CORRECT ANSWER-fixed-length blocks of data for transmission,
reassembled after transmission
Protocols - CORRECT ANSWER-A set of rules governing the exchange or transmission
of data between devices.
Handshaking protocol - CORRECT ANSWER-The sending and receiving devices
exchange signals to establish that they are each ready to initiate data transfer.
what are the four types of information that help Packet, or electronic message reach its
destination? - CORRECT ANSWER-1. the sender's address (IP)
2. the intended receiver's address
3. how many packets the complete message has been broken into
4. the number of this particular packet. The packets carry the data in the protocols that
the Internet uses—that is, TCP/IP
Network linking devices - CORRECT ANSWER-switch, bridge, gateway, router,
backbone, NIC, NOS
switch - CORRECT ANSWER-Device that connects computers to a network; sends only
to
intended recipients; operates back and forth at the same time.
bridge - CORRECT ANSWER-interface device that connects same type of networks
gateway - CORRECT ANSWER-interface device that connects dissimilar networks
AND NETWORKS
What does WAN stand for? - CORRECT ANSWER-Wide Area Network. It allows
communication around the whole world. It is meant to help others share resources.
Example: The Internet
What does MAN stand for? - CORRECT ANSWER-Metropolitan Area Network.
Communications network covering a
city or a suburb. Many cellphone systems are MANs.
What does LAN stand for and what is it? - CORRECT ANSWER-Local Are Network.
Connects computers and devices in a limited
geographic area, such as one office, one building, or a group of buildings close
together. (A home area network is a LAN.)
What does P2P stand for? - CORRECT ANSWER-peer-to-peer. All computers on the
network are "equal" and communicate directly with one another, without relying on
servers.
client/server network - CORRECT ANSWER-A network that uses centrally administered
computers, known as "servers", to enable resource sharing for and to facilitate
communication between the other computers on the network.
Intranets - CORRECT ANSWER-use infrastructure and standards of the Internet and
the web, but for an organization's internal use only.
Extranet - CORRECT ANSWER-Similar to an intranet, but allows specific users outside
of the organization to access internal information systems.
VPNs - CORRECT ANSWER-(virtual private networks): use a public network (usually
the Internet) plus intranets and extranets to connect an organization's various sites) but
on a private basis, via encryption and authentication; regular Internet users do not have
access to the VPN's data and information.
Digital Convergence - CORRECT ANSWER-is the gradual merger of computing and
communications into a new information environment, in which the same information is
exchanged among many kinds of equipment, using the language of computers.
, Digital - CORRECT ANSWER-Signals that computer uses to process a series of datas
0s and 1s, off and on.
Analog - CORRECT ANSWER-signals that use wave variations, continuously changing.
Can an analog data be converted to digital data? - CORRECT ANSWER-yes, by using
modems
Modem - CORRECT ANSWER-short for modulate/ demodulate. Communications
hardware device that facilitates the transmission of data.
Firewall - CORRECT ANSWER-a system of hardware and/or software that protects the
system from intruders. (security software for the intranets, extranets and VPNs).
Hosts - CORRECT ANSWER-Client/server network has a host computer, which
controls the network.
Nodes - CORRECT ANSWER-any device attached to the network
Packets - CORRECT ANSWER-fixed-length blocks of data for transmission,
reassembled after transmission
Protocols - CORRECT ANSWER-A set of rules governing the exchange or transmission
of data between devices.
Handshaking protocol - CORRECT ANSWER-The sending and receiving devices
exchange signals to establish that they are each ready to initiate data transfer.
what are the four types of information that help Packet, or electronic message reach its
destination? - CORRECT ANSWER-1. the sender's address (IP)
2. the intended receiver's address
3. how many packets the complete message has been broken into
4. the number of this particular packet. The packets carry the data in the protocols that
the Internet uses—that is, TCP/IP
Network linking devices - CORRECT ANSWER-switch, bridge, gateway, router,
backbone, NIC, NOS
switch - CORRECT ANSWER-Device that connects computers to a network; sends only
to
intended recipients; operates back and forth at the same time.
bridge - CORRECT ANSWER-interface device that connects same type of networks
gateway - CORRECT ANSWER-interface device that connects dissimilar networks
