Internet Connections Flashcards
Internet Service Provider (ISP)
Establishes high speed links between their network and clients
Plain Old Telephone Service (POTS)
Runs as a dial-up connection and is used on the public switched telephone network (PSTN). Analog connections can be voiced or data converted from ones and zeros. Dial-up modems have a max bandwidth of 53.3 kb/s
Integrated Services Digital Network (ISDN)
Supports multiple 64 Kbps channels
Digital Subscriber Line (DSL)
Asymmetric DSL (ADSL)
-Has different speeds of download and upload
-Max download speed: 8Mbps
-Max upload: 1.544 Mbps
Symmetric DSL (SDSL)
-Has equal speeds of download and upload. They are dedicated access
Very High Bit-Rate DSL (VDSL)
_Has high speeds of download and upload
-Download: 50 Mbps
-Upload: 10 Mbps
ADSL Maximum distance from DSLAM = 18,000 ft.
VDSL Maximum distance from DSLAM = 4,000 ft.
Cable Modems
Uses a cable TV network that is made up of a hybrid fiber-coaxial (HFC) distribution network
Data-Over-Cable Service Interface Specifications (DOCSIS)
Specifies frequency ranges used for upstream and downstream transmissions. Transmit and received over cable television infrastructure.
Fiber To The Curb (FTTC)
Runs a fiber optic cable from an internet provider access point to a curb
Fiber To The Premises (FTTP)
Fiber optic that connects directly to a building and connects to an optical network terminal (ONT)
Optical Network Terminal (ONT)
Physical devices that convert optical signals to electrical signals
Wideband Code Division Multiple Access (WCDMA) (3G networks)
Used by the UMTS standard and could reach data speeds of up to 2 Mbps
High Speed Packet Access (HSPA) (3G networks)
Reaches speeds of up to 14.4 Mbps and is sometimes referred to as 3.5G
High Speed Packet Access Evolution (HSPA+) (3G networks)
Reaches speeds of up to 50 Mbps and is sometimes referred to as 3.75G
4G Long-Term Evolution (4G LTE)
100 Mbps
LTE Advanced (LTE-A)
1 Gbps
Important to know about G!
The higher the G, the newer the standard, and the more increased the speeds are. %G comes in low-band, mid-band, and high-band, mid-band being the most common.
