20597361
Description
Mind Map by akasha psytrance, updated more than 1 year ago
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Created by ehmartinson
almost 11 years ago
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Copied by akasha psytrance
almost 5 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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