● (71) In the strength of the carrier signal is varied to represent binary 1 or 0．(72) is a system that can map a name to an address and conversely an address to an name．(73) is a three-way handshaking authentication protocol that it's packets are encapsulated in the point-to-point protocol(74) is an approach that enables an ATM Switch to behave like a LAN switch．(75) is an guided media which is made of glass or plastic and transmits signals in the form. of light．(71) A．ASKB．PSKC．FSKD．FDM(72) A．NATB．NCPC．DDND．DNS(73) A．PPPB．PAPC．CHAPD．LCP(74) A．VLANB．LANEC．VPND．IPOA(75) A．Coaxial cableB．Optical fiberC．Unshielded Twisted-pair CableD．Shielded Twisted-pair Cable
● (71) In the strength of the carrier signal is varied to represent binary 1 or 0．
(72) is a system that can map a name to an address and conversely an address to an name．
(73) is a three-way handshaking authentication protocol that it's packets are encapsulated in the point-to-point protocol
(74) is an approach that enables an ATM Switch to behave like a LAN switch．
(75) is an guided media which is made of glass or plastic and transmits signals in the form. of light．
(71) A．ASK
B．PSK
C．FSK
D．FDM
(72) A．NAT
B．NCP
C．DDN
D．DNS
(73) A．PPP
B．PAP
C．CHAP
D．LCP
(74) A．VLAN
B．LANE
C．VPN
D．IPOA
(75) A．Coaxial cable
B．Optical fiber
C．Unshielded Twisted-pair Cable
D．Shielded Twisted-pair Cable
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