单项选择题
A.The address is removed from the pool until the conflict is resolved.
B.The address remains in the pool until the conflict is resolved.
C.Only the IP detected by Gratuitous ARP is removed from the pool.
D.Only the IP detected by Ping is removed from the pool.
E.The IP will be shown, even after the conflict is resolved.
单项选择题 How does a DHCP server dynamically assign IP addresses to hosts?（）
单项选择题 A network engineer wants to allow a temporary entry for a remote user with a specific usename and password so that the user can access the entire network over the internet.which ACL can be used?（）
单项选择题 On which options are standard access lists based?（）