单项选择题
A.Traffic will be dropped per line 30 of the ACL.
B.Traffic will be accepted per line 40 of the ACL.
C.Traffic will be dropped, because of the implicit deny all at the end of the ACL.
D.Traffic will be accepted, because the source address is not covered by the ACL.
多项选择题 国际上负责分配IP地址的专业组织划分了几个网段作为私有网段，可以供人们在私有网络上自由分配使用，以下属于私有地址的网段是（）。
单项选择题 X．25协议是哪两种设备进行交互的规程？（）
单项选择题 A host on the LAN is accessing an FTP server across the Internet. Which of the following addresses could appear as a source address for the packets forwarded by the router to the destination server（）。
