General MTA Flashcards
(25 cards)
LAN
Local area network - used at a home or workplace
WAN
Wide area network - large scale network that covers a huge geographical area e.g the internet
MAN
Metropolitan area network - a large network that covers the size of a city
CAN
Campus area network - covers a network such as a university or college
PAN
Personal area network - used low power technology such as Bluetooth
CSMA/CA
Carrier sense multiple access / collision avoidance - nodes on the network broadcast when they are using the network and when they have finished to avoid collisions
Used in W I R E L E S S networks
CSMA/CD
Carrier sense multiple access/ collision detection - all nodes on the network are listening out for other nodes and will wait until the transmission media is idle before communicating
used in W I R E D networks
Token passing
Used in ring topologies to ensure that collisions are impossible. A virtual token is passed and a node must be in possession of the token before transmitting
Unicast
Data is sent from 1 to 1
Multicast
Data is sent 1 to many
Broadcast
Data is sent 1 to all
Any cast
Data is sent 1 to many where a device can opt to receive the signal
What does a device need to be on a network?
A network interface card
A host address
(Default gateway is required for internet but not local networking)
Class A address
1 - 126
Subnet mask: 255.0.0.0
Class B address
128-191
Subnet mask: 255.255.0.0
Class C address
192-223
Subnet mask 255.255.255.0
Class D address
224+
Used for multi casting
What kind of address is this:
10.6.2.21
Class A private address
What kind of address is this:
172.16.32.87
Class B private address
What type of address is this:
192.168.16.23
Class C private
What type of address is this:
68.24.78.221
Class A public
What type of address is this:
127.0.0.1
Loop back address
How many bits are in an IPv4 address?
32 bits
How many bits are there in an IPv6 address?
128