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單項(xiàng)選擇題

Which of the following processes translates a private IP address for a public IP address?（）

A.NAT
B.DNS
C.DHCP
D.PAT

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單項(xiàng)選擇題

Which of the following holds multiple connections and is usually maintained by the telephone company?（）

A.Demarc
B.IDF
C.MDF
D.110 block

單項(xiàng)選擇題

Which of the following DNS record types provides the hostname to IP address mapping?（）

A. A record
B. NS record
C. CNAME record
D. MX record

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