How to add a second line to a ephone-dn? - Certs Max

How to add a second line to a ephone-dn?

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How to add a second line to a ephone-dn?
A. ephone-dn 1 dual-line
B. ephone-dn 3 dual-line
C. ephone-dn 2 dual-line
D. ephone-dn dual-line
Correct Answer: A

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