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单选题
Which of the following features would hide internal IP addresses from the Internet?()
A
Network Address Translation
B
Port forwarding
C
Quality of Service
D
SSID broadcast
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IP address 71.33.252.17 and TCP port 80C
IP address 71.33.251.19 and TCP port 80D
IP address 71.33.252.19 and TCP port 8080
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