2.7 Dial Up and DSL Flashcards
What does POTS stand for in networking?
Plain Old Telephone Service
What network does dial-up internet use?
The Public Switched Telephone Network (PSTN)
What is the maximum speed of a dial-up connection?
53.3 Kbps
Why is dial-up considered obsolete?
It is extremely slow compared to modern broadband connections
What does ISDN stand for?
Integrated Services Digital Network
How does ISDN improve over dial-up?
It combines multiple 64 Kbps channels for faster speeds
What is the main use of ISDN today?
Legacy business telephony and old video conferencing setups
What does DSL stand for?
Digital Subscriber Line
What infrastructure does DSL use to provide internet?
Existing telephone lines
What are the three main types of DSL?
ADSL, SDSL, and VDSL
What does ADSL stand for?
Asymmetric Digital Subscriber Line
What is a key characteristic of ADSL?
Faster download speeds than upload speeds
What is a typical speed range for ADSL?
Around 8 Mbps down / 1.5 Mbps up
What does SDSL stand for?
Symmetric Digital Subscriber Line
What is a key characteristic of SDSL?
Equal download and upload speeds
