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chapter 3- Network components - Coggle Diagram
chapter 3- Network components
Media
physical
copper cable
coaxial cables
A Bayonet Neill-Concelman (BNC)
F-connector
: An F-connector is often used for cable TV (including cable
modem) connections.
Twisted-Pair Cable
shielded twisted pair (STP)
registered jack (RJ-45)
registered jack(RJ-11)
DB-9
unshielded twisted pair (UTP).
Category 5e ---(Cat 5e)
1Gbps
Category 6--(Cat 6)
Category 5--(Cat 5)
100Mbps
Category 6a----(Cat 6a)
10Gbps
Category 3---(Cat 3)
10Mbps
fiber-optic cable.
multimode fiber (MMF)
ST: A straight tip (ST)
SC --subscriber connector,
standard connector, or square connector.
LC: A Lucent connector (LC)
(MTRJ )media termination recommended
jack
single-mode fiber (SMF)
.
the air
through which
radio waves propagate
such as
wireless networking technologies
Cable Distribution
66 blocks
110 blocks
Technologies for the Internet of Things (IOT)
Ant+:
Bluetooth:
Z-Wave
Near field communication (NFC)
Radio-frequency identification (RFID)
Infrared (IR)
802.11
Network Infrastructure Devices
Hubs
what is the hup or main function of the hup?
hub receives bits in on one port and
then retransmits those bits out all other ports
lives at Layer 1 of the OSI model
does not make forwarding decisions
one broadcast domain,
one collision domain.
Bridges
what is the bridges?
joins two or more LAN segments, typically two Ethernet LAN segments.
makes intelligent forwarding decisions based on the destination MAC address
in software
considered to be a Layer 2 device.
two collision domains
one broadcast domain
Switches
what is the switches?
forwarding decisions based on the destination MAC address in hardware
separate broadcast domain
separate collision domain
Routers
what is the routers?
meaning that it makes forwarding decisions based on logical network address (for example, IP address) information
separate collision domain
separate broadcast domain
p146
Specialized Network Devices
VPN Concentrators
Such a secure tunnel is called a virtual private network (VPN).
Firewalls
is primarily a network security appliance
DNS Servers
A Domain Name System (DNS)
server performs the task of taking a domain name (for example, www.ciscopress.com) and resolving that name into a corresponding IP address (for example, 10.1.2.3)
p151 DNS record type
DHCP Servers
Proxy Servers
Virtual Network Devices
Virtual Servers
Virtual Routers and Firewalls
Virtual Switches
Virtual Desktops
Cloud Computing