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Networks are an interconnection of computers and other communication devices that allow multiple users to SHARE:
- Hardware
- Data
- Communications
- Software
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The 3 parts of the NETWORK SYSTEM ARCHITECTURE:
- Teleprocessing
- Distributed
- Hybrid
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____________ is when a "centralized computer" is connected to dumb terminals via direct lines and/or through telephone lines.
Teleprocessing
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With TELEPROCESSING,the computer is normally a ___________.
mainframe
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_________ is capable of processing very large business applications efficiently.
Teleprocessing
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Large and medium sized companies relied on ______________ in the 80s and many still do today.
teleprocessing
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A teleprocessing network's operating system is ______ ______ so it can execute multiple ____________ at the same time.
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In a teleprocessing network , the computer is referred to as the _________.
Host
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The 4 types of a DISTRIBUTED network are:
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In a DISTRIBUTED network, different computers can specialize in different _________.
functionality (like graphics, etc.)
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A _____________ network is when independent computers are connected to each other (mainly microcomputers and workstations).
Distributed
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In a ___________ network, each computer can perform all of it's own tasks or have other computers perform some specialized tasks.
Distributed
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Computers must be within a few thousand feet in a ________ network.
LAN (Local Area Network)
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A __________ is a network that covers a city or suburb.
MAN (Metropolitan Area Network)
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A ________ is a network that covers a large geographical area. Can be made up of several LAN and MAN networks.
WAN (Wide Area Network)
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A _________ network architecture uses both teleprocessing and distributed. And has the advantages of both.
hybrid
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The two major types of DISTRIBUTED NETWORKS are:
- Client/Server
- Peer To Peer
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Name the 4 configurations of LAN topology:
- Star
- Ring
- Bus
- FDDI (Fiber Distributed Data Interface)
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Any device on a network that is not a server is called a _________.
node
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A _________ is a computer that serves the needs of the network only.
server
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A ________ is a device (normally a computer) that connects nodes on a network and is half-duplex.
HUB
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A ________ is a device (normally a computer) that connects nodes on a network and is full-duplex.
switch
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A ______ forwards data it receives to all other nodes.
HUB
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__________ are a set of communications conventions that are built into the hardware and software (NOS) that govern the exchange of data between computers in a network.
Protocols.
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A _________ is a circuit board that connects to the mother board in each computer which connects it to the network.
NIC (Network Interface Card)
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4 examples of a server are:
- File Server
- Print Server
- Mail Server
- Database Server
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________ duplex devices, such as a _____, can't receive and send at the same time.
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________ duplex devices, such as a _______, can send and receive at the same time.
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A _________ is a computer that connects two LAN Networks with the SAME topology (configuration).
bridge
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A _________ is a computer that connects two LAN Networks with a DIFFERENT topology (configuration).
gateway
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A _________ is a computer that directs communications when several networks are connected together.
router
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A switch forwards data only to the ________ that are ________.
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In ________ topology, the overall speed of the network is dependent on the processing speed of the HUB.
STAR
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In __________ topology the central computer (HUB) operates as a clearing house for all the sharing of data and communications.
STAR
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In _______ topology, each user has its own computer to do their independent processing.
STAR
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In _______ topology if the central computer is down, then the network is down.
STAR
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In _______ topology, communications and data are passed through one computer at a time in a circular manner.
ring
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In ________ topology, if the connection is broken, then the whole network is down.
ring
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Ring topology can be _______/_______ or ______ to _______.
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_______ topology is the most reliable of all the LAN topologies.
FDDI (Fiber Distributed Data Interface)
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In _________ toplogy, computers share communication and data by sharing the same communication lines.
bus
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In __________ topology, more communications or data may be on the line so faster line speeds are required.
bus
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Bus topology can ________/________ or ______ to ______.
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The FDDI uses ______ ______ _______ with adaptation of ring topology.
fiber optic cable
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________ is the fastest, most reliable and most expensive LAN.
FDDI (Fiber Distributed Data Interface)
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FDDI uses _______ rings.
two
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The _______ is an organization's private network.
intranet
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The ____________ are private intranets that connect not only internal personnel, but also selected suppliers, etc...
extranet
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__________ are private networks that use the internet to connect remote sites (locations).
VPNs (Virtual Private Network)
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A system of hardware and software that blocks unauthorized users inside or outside an organization from entering the intranet is called a ____________.
firewall
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