单项选择题
Which of the following should be done FIRST to a hard drive before it is disposed?（）
A. Partition B. Physical damage C. Data wipe D. Format
单项选择题 Which of the following has the HIGHEST connection latency? （）
单项选择题 Which of the following commands changes a file characteristic so that it cannot be seen with astandard directory query? （）
单项选择题 Which of the following attributes is set when a file is ready to be backed up?（）
