题目内容
（请给出正确答案）
In the Ezonexam switched LAN environment, what does the IEEE 802.1Q standard describe？
A. VLAN pruning
B. A method of VLAN trunking
C. An approach to wireless LAN communication
D. The operation of VTP
E. The process for root bridge selection
F. None of the above
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更多“In the Ezonexam switched LAN environment, what does the IEEE 802.1Q standard describe？A. V”相关的问题
下列程序是判断一个整数(＞=3)是否为素数，请补充完整。 Dim n As Integer n=InputBox("请输入一个整数(＞=3)") k=Int(Sqr(n)) i=2 swit=0 While i＜=k And swit=0 If n Mod i=0 Then 【 】 Else 【 】 End If Wend If swit=0 Then Print n；"是一个素数。" Else Print n；"不是一个素数。" End If
In which of the following situations is biometric technology NOT used？
A．Computers are switched on by a voice order.
B．Doctors diagnose disease through patients' voice.
C．Museum doors are controlled by palm scanner.
D．The police identify criminals through fingerprints.
当处理一个问题时的循环次数已知时，最好采用()语句来解决。
A. for
B. while
c. do-while
D. switch
A Ezonexam PC has the IP address 172.16.209.10 /22. What is the subnet of this address？
A．172.16.42.0
B．172.16.107.0
C．172.16.208.0
D．172.16.252.0
E．172.16.254.0
在Cisco Catalyst 3548以太网交换机上建立一个名为lib105的VLAN，下列正确的配置是______。
A) Switch-3548#vlan 1 name lib 105
Switch-3548#exit
B) Switch-3548(vlan)#vlan 1 name lib 105
Switch-3 548(vlan)#exit
C) Switch-3548(vlan)#vlan 1000 name lib 105
Switch3548(vlan)#exit
D) Swimh-3548(vlan)#vlan 1002 name lib 105
Switch-3548(vlan)#exit
有以下程序： #include ＜iostream＞ using namespace Std； int main() { int a = 15，b = 21，m = 0； switch(a%3) { case 0： m++； break； case 1： m++； switch(b%2) {
A．1
B．2
C．3
D．4
A．Create the VLAN.
B．Name the VLAN.
C．Configure an IP address for the VLAN.
D．Add the desired ports to the new VLAN.
E．Add the VLAN to the VTP domain.
A．To prevent unauthorized hosts from getting access to the LAN
B．To limit the number of Layer 2 broadcasts on a particular switch port
C．To prevent unauthorized Telnet or SSH access to a switch port
D．To prevent the IP and MAC address of the switch and associated ports
E．None of the above
Which of the following are layer 1 devices that you can use？ (Choose all that apply.)
A．A switch
B．A router
C．A network adapter card
D．A hub
E．A repeater
VE1 is a switch in the Ezonexam network. Why will VE1 never learn the broadcast address？
A. Broadcast frames are never sent to switches
B. A broadcast frame. is never forwarded by a switch
C. Broadcasts only use network layer addressing
D. A broadcast address will never be the source address of a frame
E. Broadcast addresses use an incorrect format for the switching table
F. None of the above
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