如果你打算配置路由器的接口IP地址，应该使用哪个命令 A: router(config-if)# ip address 142.8.2.1 subnet mask 255.255.252.0 B: router(config-if)# 142.8.2.1 0.0.3.255 C: router(config-if)# ip address 142.8.2.1 subnet mask /22 D: router(config-if)# ip address 142.8.2.1 255.255.252.0

以下哪个命令是配置IP地址池的子网地址和子网掩码的______ A: ip dhcp excluded—address B: network address mask C: default—router address D: ip dhcp pool

在DHCP Pool配置模式下，配置IP地址默认网关的命令是（）。 A: network＜network-number＞＜mask |/prefix-length＞ B: default-router address[address2…address8] C: domain-name＜name＞ D: dns－server address[address2…address8]

A．E-mail address and IP address B．MAC address and port address C．MAC address and IP address D．port number and IP address

【单选题】In the description of IPv4 address and IPv6 address, the correct one is (). A. IPv4 address and IPv6 address are 32 bits B. IPv4 address is 32 bits, IPv6 address is 128 bits C. IPv4 address and IPv6 address are 128 bits D. IPv4 address is 128 bits and IPv6 address is 32 bits

The __________ address is the address of the writer.

The address in letterhead is the address of the ___。

关于mask像选择时机的说法，不正确的是 A: mask像可在后处理中重新选择 B: mask像可在对比剂出现之前选择 C: mask像可以在对比剂充盈最佳时选择 D: mask像可以在对比剂消失时选择 E: mask像只能在充盈前选择

The inside address is the address of the writer.

下面对Mask的作用，描述正确的是： A: 通过Mask，可以对指定的区域进行屏蔽。 B: 某些Effect需要根据Mask发生作用。 C: 产生屏蔽的Mask必须是封闭的 D: 应用于效果Effect的Mask必须是封闭的