下列哪个命令用来在DNS配置文件中定义名称查询转发（）。
A、allowquery
B、allowupdate
C、forwarder
D、forwarders
通常网络上的一台计算机至少需设置计算机的IP地址、（）地址和（）3部分。
简述空调系统工作原理。
截平面与圆柱轴线倾斜时（）的形状是椭圆。
A、过度线
B、截交线
C、相贯线
D、轮廓线
What are three characteristics of MSR-patented technology? （）(Choose three.)
AMSR is stateful technology.
BMSR operates at the IP layer.
CMSR uses defined window sizes.
DMSR provides stateless compression.
EMSR uses real-time dictionary updates.
Company.com is planning for an HACMP cluster and wants to know more about the network requirements. The plan is to use IPAT via IP aliasing and heartbeating via IP aliasing to preserve the corporate IP addresses. Currently the customer uses a separate VLAN for each individual subnet. Which statement best describes how HACMP co-exists with VLAN’s in this configuration？（）
A、 All subnets in use by HACMP must be in the same VLAN.
B、 All subnets in sue by HACMP must be in a different VLAN.
C、 HACMP does not support multiple subnets when using heartbeating via IP aliasing.
D、 HACMP does not support the use of VLAN.