Technical Terms - Internet (A-Z) - ISDN

What does ISDN stand for?

• International Standard Data Network

• Integrated System Data Network

• Integrated Services Digital Network

• Internet Service Data Network

When was the first ISDN standard defined?

• 2000

• 1995

• 1988

• 1990

Which ISDN variant supports 30 B channels and two additional channels in a single E1 connection?

• Integrated System Data Network

• Primary Rate Interface (PRI)

• Basic Rate Interface (BRI)

• Always on Dynamic ISDN (AODI)

What is the data transfer rate of Basic Rate Interface (BRI)?

• 64 kbps

• 128 kbps

• 256 kbps

• 512 kbps

Which protocol does Always on Dynamic ISDN (AODI) use?

• FTP

• HTTP

• X.25

• TCP/IP

In which decade was ISDN a common high-end Internet service?

• 2010s

• 2000s

• 1990s

• 1980s

What technology began to replace ISDN connections in the mid-2000s?

• DSL and cable

• Satellite Internet

• Dial-up Internet

• Fiber Optic

What is the current status of ISDN for Internet access?

• Widely used

• Rarely used

• Growing in popularity

• Obsolete

What was the main reason for replacing ISDN connections with DSL and cable services?

• Slower speed

• Limited availability

• Lack of security

• Higher cost

How many B channels does Primary Rate Interface (PRI) support?

• 40

• 50

• 30

• 20