220-802 · Question #417
220-802 Question #417: Real Exam Question with Answer & Explanation
The correct answer is B: Check if the cable is connected on the modem's line RJ-11 port.. A dial-up modem has two RJ-11 ports: LINE (connects to the telephone wall jack to receive a dial tone) and PHONE (connects to a handset). The LINE port must be connected for the modem to detect a dial tone. RJ-11 is the correct connector type for telephone lines-it is the small 6
Question
Options
- ACheck if the cable is connected on the modem's phone RJ-45 port.
- BCheck if the cable is connected on the modem's line RJ-11 port.
- CCheck if the cable is connected on the modem's line RJ-45 port.
- DCheck if the cable is connected on the modem's phone RJ-11 port.
Explanation
A dial-up modem has two RJ-11 ports: LINE (connects to the telephone wall jack to receive a dial tone) and PHONE (connects to a handset). The LINE port must be connected for the modem to detect a dial tone. RJ-11 is the correct connector type for telephone lines-it is the small 6-position plug used in phone cabling. RJ-45 (options A and C) is a larger Ethernet connector and is not used for telephone/modem connections. Checking the phone port (D) would be incorrect because that port is for a handset, not the incoming phone line.
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