单项选择题
Which of the following would BEST protect hardware from dust and ESD when storing it for futureusage?（）
A. Air filter B. Anti-static bags C. Compressed air D. Paper bag
单项选择题 Which of the following network devices uses NAT to convert private IP addresses into public IPaddresses?（）
单项选择题 Which of the following ports is used for HTTPS traffic by default?（）
单项选择题 Which of the following ports is used by default for IMAP traffic?（）
