20597360
Description
Mind Map by akasha psytrance, updated more than 1 year ago
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Created by ehmartinson
over 10 years ago
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Copied by akasha psytrance
about 4 years ago
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Chapter 1 -
Intro to
Networks
- Network?
- two or more connected
computers that can share
resources
- Local Area Network
(LAN)?
- Usually restricted to spanning a particular
geographic location. e.g. Office Building, Signel
Dept., Corporate office.
- Workgroups?
- Big LAN's can be split into
small logical zones.
- Arrange LAN workgroups
along department divisions.
e.g. Sales, Marketing,
Accounting.
- Big LAN's can be split into
small logical zones.
- Used to connect a group
of hosts together
- Usually restricted to spanning a particular
geographic location. e.g. Office Building, Signel
Dept., Corporate office.
- Wide Area Network
(WAN)?
- Span large geographic locations and
employ both routers and public links.
- Used to connect
various LAN's together.
- MPLS -
MultiProtocol Label
Switching
- Pros: Physical layout flexibility,
Prioritizing of data, one to
many connection.
- Switching mechanism that imposes
lables to data and then uses those lables
to forward the data.
- Pros: Physical layout flexibility,
Prioritizing of data, one to
many connection.
- Span large geographic locations and
employ both routers and public links.
- Peer to Peer
- No central authority,
all peers so when it
comes to authority
they're all equals. They
can be client and
servers at the same
time.
- No central authority,
all peers so when it
comes to authority
they're all equals. They
can be client and
servers at the same
time.
- Client Server
- Single server uses a
network operating
system to manage the
whole network. A
server handles security
and directs clients to
the resources it wants.
- Single server uses a
network operating
system to manage the
whole network. A
server handles security
and directs clients to
the resources it wants.
- two or more connected
computers that can share
resources
- Common Network Components
- Workstations
- Powerful computers, resources
are available to there users on
the network
- Powerful computers, resources
are available to there users on
the network
- Servers
- Powerful computers
that run specialized
software for the
network's maintenance
and control.
- Powerful computers
that run specialized
software for the
network's maintenance
and control.
- Hosts
- Broad term that can
be used to describe
almost any type of
networking device. A
network device,
including
workstations and
servers, with IP
addresses.
- Broad term that can
be used to describe
almost any type of
networking device. A
network device,
including
workstations and
servers, with IP
addresses.
- Workstations
- Network
Topologies
- Physical
- Gives you the
lay of the land
- Gives you the
lay of the land
- Logical
- Shows how the digital
signal navigates the
layout.
- Shows how the digital
signal navigates the
layout.
- Bus
- 2 terminated ends, with each of its
computer connecting to one unbroken
cable running its entire lenth
- Pros: Easy to install, inexpensive. Cons:
Hard to troubleshoot, change, or move,
and no fault tolerance.
- 2 terminated ends, with each of its
computer connecting to one unbroken
cable running its entire lenth
- Star
- Computers are connected to a
central point (Hub, Switch, Access
Point).
- Pros: Fault Tolerance, Scaleable, easy to troubleshoot
Cons: Installation costs, Single point of failure (Hub,
Switch, Access Point)
- Computers are connected to a
central point (Hub, Switch, Access
Point).
- Ring
- Each Computer is connected directly to
other computers in the same network.
- Pros and Cons same as Bus
but it is pricier that Bus.
- Each Computer is connected directly to
other computers in the same network.
- Mesh
- There is a path from every machine to
every other machine. Not usually found in
LAN's
- Pros: Fault tolerance
Cons: Pricey,
Complicated
- There is a path from every machine to
every other machine. Not usually found in
LAN's
- Point-to-Point
- Direct connection between two devices
creating 1 communication path. From one
router to another router.
- Direct connection between two devices
creating 1 communication path. From one
router to another router.
- Point-to-Multipoint
- Succession of connections between an
interface and multiple destination
interfaces. One router to multiple routers.
- Succession of connections between an
interface and multiple destination
interfaces. One router to multiple routers.
- Hybrid
- A combination of two or more types of physical
or logical network topologies working together
within the same network.
- A combination of two or more types of physical
or logical network topologies working together
within the same network.
- Physical
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