Which of the following technologies facilitates the conversion of internal private IP addressing toexternal public IP addressing?（）

单项选择题Which of the following processes translates a private IP address for a public IP address?（）

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

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

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

单项选择题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

单项选择题Which of the following should be updated when new computers are purchased?（）

A. Asset management
B. Change management
C. Cable management
D. Baselines

单项选择题Which of the following wireless technologies can support the GREATEST distance on either 2.4GHz or 5GHz frequencies?（）

A.802.11a
B.802.11b
C.802.11g
D.802.11n