【单选题】Click the Exhibit button. Based on the exhibit, client PC 192.168.10.10 cannot ping 1.1.1.2. Which is a potential cause for this problem?()
A.
The untrust zone does not have a management policy configured.
B.
The trust zone does not have ping enabled as host-inbound-traffic service.
C.
The security policy from the trust zone to the untrust zone does not permit ping.
D.
No security policy exists for the ICMP reply packet from the untrust zone to the trust zone.
【单选题】通信生产机房楼内无自然采光楼梯间、封闭楼梯间、防烟楼梯间及其前室的顶棚、墙面及地面均应采用不燃装修材料;水平疏散通道和安全出口的门厅、顶棚应采用()
【单选题】下面哪个取代基不能通过亲电取代反应获得?
【单选题】下列哪一种情况绝对禁忌作为器官移植的供者
【单选题】下列哪个地方是我国白瓷最著名的产地。( )
【单选题】下列哪个地方是我国白瓷最著名的产地。( )
【判断题】若一平面载流线圈在磁场中,所受合力为零,所受力矩也为零,这说明该磁场是均匀的,且线圈的磁矩方向一定与磁场方向垂直。
【判断题】螺纹加工中,可以直接从螺纹起始位置切到螺纹终止位置
【单选题】疏散楼梯间和前室的顶棚、墙面和地面均应采用( )级装修材料。