Zusammenfassung der Ressource
Unit 1.5V2 Network Topologies
- Star Toplogy
- Each device
has its own
cable that
connects it
to the
switch.
- Expensive
to install
- Extra
hardware
might be
required
- If the hub
or switch
fails all
devices will
be
affected.
- The server
connects to
the switch
and the
switch
connects to
all devices
- Mesh
Topology
- Connecting a small network of computers together.
- All devices
are linked
together
- More susceptible to attacks.
- There is no need for a direct connection.
- Can connect to multiple devices.
- Tend to have slower transfer speeds.
- Interference can happen some times.
- Protocol is a
set of rules to
tell you how
to
communicate
with devices
- The
connection
isn’t stable
- IP
addresses
are either
32 or 128
bit.
- TCP and IP
are used to
transmit
data.
- Data is
split up
into
packets
- IP
addresses
can change
over time
but MAC
never
change.
- Static IPs
never
change but
dynamic
do
- POP3
protocol
Devices can
only
receive
data
- FTP file
transfer
protocol
used when
sending
large files
- HTTPS
encrypted
(secured data
transmission)
- SMTP
sending e
mails only
- VIOP
sending
voice
messages
- TCIP
Checks
Source
Destination
Packet
Order Data
Error Check