A technician needs to assign a d_睦霖题库

单项选择题A technician needs to assign a default subnet mask for a class B network to a network device that was just installed. Which of the following would the technician use?（）: A、224.0.0.1; B、255.0.0.0; C、255.255.0.0; D、255.255.255.0

正确答案：C
答案解析：
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