Infrastructure 2.7 Flashcards
Basics of Networking Comms
Packet Transmission
One computer forwards information from one to another
Like a pill capsule dedlivers all of the data inside to the other.,
D.N.S.
Domain Name Server
resolve resources into IP address/Binary
Uses 48-Bit Mac Values
translates Web names into IP language
U.R.L.
Uniform Resource Locator
when a web browser requests a record from a web server, identifies and access an item.
Basic Protocols
Http/s, Pop3, IMAP, SMTP
HTTP/S
Used to provide web content to browsers, uses port 80,
HTTPS uses SSL (Secure Sockets Layer) for encrypted transfers. Port 80
Device Addresses
IP, MAC
MAC Address
48-Bit Address, hardware address hard coded into network card by manufacturer
IP Adress
32-Bit Binary address for IPv4
128-Bit for IPv6
IMAP
Internet Message Access Protocol
App protocol that allows the client to access email messages stored in a mailbox on a remote server.
Messages persist on server after the client has D/L them
SMTP
Simple Mail Traasnfer Protocol
Used to send mail between hots on the internet.
POP/3
Post Office Protocol
means for client to access email messages stored in a mailbox on a remote server.
(*Usually deletes messages once the client has downloaded them)
Devices
Modem, Router, Switch, Access Point, Firewall
Internet Service Types
Switch, Access Point, Router, Modem, Firewall
Switch
Connects 4-8 computers together in an Ethernet LAN using RJ-45 network ports and twisted-pair cabling
