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【单选题】
如图 1 所示, VCC 为 +5V , LED 点亮需 3V 电压 .5ma ,则 R34 大小为()
A.
100 欧
B.
300 欧
C.
400 欧
D.
600 欧
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参考答案:
举一反三
【简答题】股份有限公司的股东大会进行决议时,对公司修改章程、公司合并或分立、公司解散等特别事项表决时,应采用的决议方式是( )。
【多选题】You apply an new inbound access fist to routers, blocking UDP packets to the HSRP group. Which two effects does this action have on the HSRP group process? (Choosetwo.)
A.
HSRP redundancy works as expected
B.
HSRP redundancy fails
C.
The active router immediately becomes the standby router.
D.
Both the active and standby routers become active.
E.
The routers in the group generate duplicate IP address warnings
【判断题】过热蒸汽比热容大于再热蒸汽比热空,等量的蒸汽获相同的热量,再热蒸汽温度变化较过热蒸汽温度变化要大。
A.
正确
B.
错误
【单选题】下列程序的运行结果是: str = "Hello Python, I' m a rookie." print(str[0]) print(str[-1]) print(str[1:3]) print(str[-3:-1])
A.
H . el ie
B.
H e el ie
C.
H e Hel ie
D.
H . Hel ie
【多选题】Which three statements about VTP features are true?()
A.
When properly configured,VTP minimizes VLAN misconfigurations and configuration inconsistencies
B.
Each broadcast domain on a switch can have its own unique VTP domain
C.
VTP works at Layer 3 of the OSI model and requires that a management VLAN IP address be configured.
D.
When properly configured,VTP maintains VLAN configuration consistency and accelerates trunk link negotiation.
E.
VTP pruning is used to increase available bandwidth in trunk links
F.
Client,server,and transparent are valid VTP modes
G.
To configure a switch to be part of two VTP domains,each domain must have its own passwords
【多选题】Which three statements about VTP features are true?()
A.
When properly configured,VTP minimizes VLAN misconfigurations and configuration inconsistencies
B.
Each broadcast domain on a switch can have its own unique VTP domain
C.
VTP works at Layer 3 of the OSI model and requires that a management VLAN IP address be configured.
D.
When properly configured,VTP maintains VLAN configuration consistency and accelerates trunk link negotiation.
E.
VTP pruning is used to increase available bandwidth in trunk links
F.
Client,server,and transparent are valid VTP modes
G.
To configure a switch to be part of two VTP domains,each domain must have its own passwords
【单选题】以下无法帮助听众倾听的是?
A.
故弄玄虚
B.
生动的比喻
C.
恰当的肢体语言
D.
适时的幽默
【多选题】下列物质中,塑料离心管可以盛放
A.
有机溶剂
B.
酶溶液
C.
盐溶液
D.
普通水溶液
【多选题】The vPC peer-gateway capability allows a vPC switch to act as the active gateway for packets that are addressed to the router MAC address of the vPC peer. This feature enables local forwarding of such...
A.
The vPC peer-gateway feature is enabled by default.
B.
The vPC peer-gateway feature can be configured globally under the vPC domain submode.
C.
Enabling the peer-gateway feature automatically disables IP redirects on all interface VLANs mapped over a vPC VLAN to avoid generation of IP redirect messages for packets switched through the peer gateway router.
D.
The vPC peer-gateway feature only works with HSRP protocol.
【判断题】过热蒸汽比热容大于再热蒸汽比热容,等量的蒸汽获相同的热量,再热蒸汽温度变化较过热蒸汽温度变化要大。( )
A.
正确
B.
错误
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