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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

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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

單項(xiàng)選擇題

Which of the following should be updated when new computers are purchased?（）

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

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