NAT Network Address translation Description Public and Private Addressing Private IPv4 Address Ranges RFC1918 nameĪddresses inside of these private addresses won't be able to route on the internetĮvery internet service provider they should put a firewall rule in place that prevents people with these addresses from getting out on the internet, because they are non-regulated IP addresses.
can decide which set of IPs it needs to access what it's trying to get too.
the GW is what allows us to leave the internal network.
Smart Computers can reach other computers on that networks.
Devices that are grouped together that have the same network identifier as defined by the subnet mask.
Where you see a 0 that represents the host.
Where you see a 255 that represents a networks.
Subnet purpose is to define the size of the network boundary.
the first three octets represent the network.
Without these boundaries, everything becomes mush.
These boundaries provide different groupings.
The network allows our computers to talk.
Finds the closest server to you with the address you're looking for.ĭefining a Network Defining the Network Neighborhood.
Puts a stop to redundancy connection until its needed.ĬCNA Collaboration is about Video and VoIP.
Difference ways things are connected to one another.
Could be Ethernet, Fiber Optic, and Serial.the GrandfatherĪuto MDIX can tell what the device is on the other side, and doing away with straight and crossover.
Kilo, Mega, Giga, and beyond Network Cabling Ethernet
CSMA/CA Carrier Sense Multiple Access Collision Avoidance.
CSMA/CD - Carrier Sense Multiple Access Collision Detection.
Storage reaches into the tera / penta realm Networks can't actually send a byte of data
Computers deal in bytes, networks deal in bits.
Integrated or separate intrusion prevention system (IPS).
Transparent mode allows them to be run without being seen.
Firewall denies everything, and allows by exception.
Router allows everything, and denies by exception.
let the firewall be the firewall, and the router be the Router.
Block or allow traffic from moving between networks.
can auto adopt new APs and auto configure them.
higher the frequency, smaller range, higher bandwidth.
lower the frequency, longer range, lower bandwidth.
A whole new world of managing the unmanageable.
Wireless Access Point Translates wired into airwaves.
Mostly.Īpplication Specific Integrated Circuitry
#Cisco ccent switch mac address learning simulator
packet tracer is a network simulator for Cisco.
No, but having practical experience wouldn't hurt.
Certification = targeted, direct training, always updating.
College = General studies, some specialization, keep it forever.
Each Experience level comprised of one or more exams.
multiple areas of expertise with varied focus.
Understanding the Cisco Certification Program Cisco CCENT/CCNA ICND1 100-105 What is Network Administration and Engineering OSI layers Why