1. [单选题]标准访问控制列表应被放置的最佳位置是在（）。
A. 越靠近数据包的源越好
B. 越靠近数据包的目的地(destination)越好
C. 无论放在什么位置都行
D. 入接口方向的任何位置
2. [单选题]The Ezonexam network administrator needs to a switch named VE1 to become the root bridge for a redundant path switched network. What can be done to ensure that VE1 will always assume the role as the root bridge?
A. Assign the switch a higher MAC address than the other switches in the network have
B. Establish a direct link from the switch to all other switches in the network
C. Configure the switch full-duplex operation and configure the other switches for half-duplex operation
D. Configure the switch so that it has lower priority than other switches in the network
E. None of the above
3. [单选题]对路由器的描述，正确的是（）
A. 单广播域，单冲突域的设备
B. 单广播域，多冲突域的设备
C. 多广播域，单冲突域的设备
D. 多广播域，多冲突域的设备
4. [多选题]对于IP为199.41.27.0，子网掩码为255.255.255.240，则该IP地址和子网掩码相作用会得到一系列IP，从下列选项中选出属于“有效IP”的选项：()
A. 199.141.27.33
B. 199.141.27.112
C. 199.141.27.119
D. 199.141.27.126
E. 199.141.27.175
F. F.199.141.27.208
5. [多选题]As a Ezonexam trainee you are required to set the default gateway on a Cisco switch to the IP address of 192.168.1.115. Which IOS command should you use?
A. TestKSwitch(config) ip route-default 192.168.1.115
B. TestKSwitch(config) ip default-gateway 192.168.1.115
C. TestKSwitch(config) ip route 192.168.1.115 0.0.0.0
D. TestKSwitch(config) ip default-network 192.168.1.115
E. None of the above
