单项选择题
A.NAT B.DNS C.DHCP D.PAT
Which of the following holds multiple connections and i...
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
Which of the following DNS record types provides the ho...
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
Which of the following should be updated when new compu...
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
