单项选择题
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
Which of the following wireless technologies can suppor...
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
