文件完整性检查的目的是发现受害系统中被篡改的文件或操作系统的内核是否被替换，对于Linux系统，网络管理员可使用（ ）命令直接把系统中的二进制文件和原始发布介质上对应的文件进行比较。
- A.who
- B.find
- C.arp
- D.cmp
正确答案及解析
正确答案
解析
Linux系统的cmp命令用于逐字节比较两个文件是否有差异。当相互比较的两个文件完全一样时，则该指令不会显示任何信息。若发现有所差异，预设会标示出第一个不同之处的字符和列数编号。
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