Question

which of the following dial - up connection types has been largely replaced by direct internet connections? a integrated services digital network (isdn) b lan router c digital subscriber line (dsl) d cable modem

Explanation:

To solve this, we analyze each option:

• Option A: Integrated Services Digital Network (ISDN) is a dial - up - like connection type that has been largely replaced by faster direct Internet connections (like fiber, newer broadband).
• Option B: A LAN router is used for local area network routing, not a dial - up connection type, so it's not relevant.
• Option C: Digital Subscriber Line (DSL) is a broadband connection type that is still in use and not replaced in the same way as ISDN.
• Option D: Cable modem is also a broadband connection type that is widely used and not replaced like ISDN.

So the dial - up connection type that has been largely replaced by direct Internet connections is ISDN.

Answer:

A. Integrated Services Digital Network (ISDN)