220-801 · Question #615
Which of the following connectors is used to connect a DSL modem to a wall outlet?
The correct answer is C. RJ-11. DSL modems connect to the public switched telephone network via a standard telephone wall jack, which uses an RJ-11 connector.
Question
Which of the following connectors is used to connect a DSL modem to a wall outlet?
Options
- ARJ-45
- BLC
- CRJ-11
- DSC
How the community answered
(43 responses)- A7% (3)
- B2% (1)
- C88% (38)
- D2% (1)
Why each option
DSL modems connect to the public switched telephone network via a standard telephone wall jack, which uses an RJ-11 connector.
RJ-45 is the 8-pin Ethernet connector; it would be used on the LAN-side port of the modem to connect to a router or PC, not on the DSL line side to the wall.
LC (Lucent Connector) is a small-form-factor fiber optic connector used in fiber-based networking, not on telephone line infrastructure.
RJ-11 is the 6-position, 2-contact modular connector used on standard telephone lines, which is the physical medium DSL (Digital Subscriber Line) technology runs over. A DSL modem plugs into the RJ-11 wall jack to receive the broadband signal carried on the same copper pair as the telephone service.
SC (Subscriber Connector) is a standard fiber optic connector used in fiber networking and has no application in copper DSL telephone connections.
Concept tested: DSL modem wall connector type identification
Source: https://learn.microsoft.com/en-us/windows-hardware/drivers/network/types-of-dsl-technologies
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