● 交换机命令switch(config)# vtp pruning的作用是 (59) 。 (59)A. 指定交换机的工作模式 B. 启用
● 交换机命令switch(config)# vtp pruning的作用是 (59) 。
(59)
A. 指定交换机的工作模式
B. 启用VTP 静态修剪
C. 指定VTP 域名
D. 启用VTP 动态修剪
● 交换机命令switch(config)# vtp pruning的作用是 (59) 。
(59)
A. 指定交换机的工作模式
B. 启用VTP 静态修剪
C. 指定VTP 域名
D. 启用VTP 动态修剪
A、POST 正常执行
B、启动过程被打断
C、此路由器上 RAM 或闪存不足
D、找到并重新加载了完整版本的 Cisco IOS
E、路由器未位于闪存中的 Cisco IOS,因此默认在 ROM 中
● Although a given waveform. may contain frequencies over a very broad range, as a practical matter any transmission system will be able to accommodate only a limited band of (71) . This, in turn, limits the data rate that can be carried on the transmission (72) . Asquare wave has an infinite number of frequency components and hence an infinite (73) . However, the peak amplitude of the kth frequency component, kf, is only 1/k, so most of the (74) in this waveform. is in the first few frequency components. In general, any digital waveform. will have (75) bandwidth. If we attempt to transmit this waveform. as a signal over any medium, the transmission system will limit the bandwidth that can be transmitted.
(71)A. frequencies B. connections C. diagrams D. resources
(72)A. procedure B. function C. route D. medium
(73)A. source B. bandwidth C. energy D. cost
(74)A. frequency B. energy C. amplitude D. phase
(75)A. small B. limited C. infinite D. finite
(71)
A. frequencies
B. connections
C. diagrams
D. resources
(72)
A. procedure
B. function
C. route
D. medium
(73)
A. source
B. bandwidth
C. energy
D. cost
(74)
A. frequency
B. energy
C. amplitude
D. phase
(75)
A. small
B. limited
C. infinite
D. finite
2950# show interface fastEthernet0/1 switchport
Name: fa0/1
Switchport: Enabled
Administrative mode: trunk
Operational Mode: trunk
Administrative Trunking Encapsulation: dot1q
Operational Trunking Encapsulation: dot1q
egotiation of Trunking: Disabled
Access Mode VLAN: 0 ((Inactive))
Trunking Native Mode VLAN: 1 (default)
Trunking VLANs Enabled: ALL
Trunking VLANs Active: 1,2
Pruning VLANs Enabled: 2-1001
Priority for untagged frames: 0
Override vlan tag priority: FALSE
Voice VLAN: none
在这个例子中,端口fa0/1的链路模式被设置为 (56) 状态,默认的VLAN是 (57) 。
(56)
A. Desirable
B. No-Negotiate
C. Auto negotiate
D. trunk
(57)
A. VLAN0
B. VLAN1
C. VLAN2
D. VLAN3
(68)
A. 4 Mb/s
B. 6 Mb/s
C. 8 Mb/s
D. 12 Mb/s
A.瀑布模型
B.原型模型
C.V-模型
D.螺旋模型
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