Why will a switch never learn a broadcast address?()
A . Broadcasts only use network layer addressing.
B . A broadcast frame is never forwarded by a switch.
C . A broadcast address will never be the source address of a frame.
D . Broadcast addresses use an incorrect format for the switching table.
E . Broadcast frames are never sent to switches.
相似题目
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Why would a network administrator configure port security on a switch?()
A . to prevent unauthorized Telnet access to a switch port
B . to limit the number of Layer 2 broadcasts on a particular switch port
C . to prevent unauthorized hosts from accessing the LAN
D . to protect the IP and MAC address of the switch and associated ports
E . to block unauthorized access to the switch management interfaces over common TCP port
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I'm sure Harry will remember, but why not give him a ring()he forgets?
A . in the case
B . in case of
C . in case
D . in the case of
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Why would an administrator change the value of the spanning-tree priority of a switch?()
A . in order to optimize the path that frames take from source to destination
B . to increase the priority so a designated port will become a root port
C . to increase the BID, so the switch is more likely to become root bridge
D . in order to allow VLANs to be sent from one switch to another across a single link
E . to force a given switch to become an STP server
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Why would a network administrator configure port security on a switch()。
A . to prevent unauthorized Telnet access to a switch port
B . to limit the number of Layer 2 broadcasts on a particular switch port
C . to prevent unauthorized hosts from accessing the LAN
D . to protect the IP and MAC address of the switch and associated ports
E . to block unauthorized access to the switch management interfaces over common TCP port
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Why he did it will remain a()for ever.
A . strange
B . pass
C . public
D . puzzle
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Why will a two stage flash type distilling plant tend to operate more efficiently when operating in cold seawater?()
A . The colder seawater passing through the condenser tube bundles of the various stages increases evaporator vacuum
B . The amount of heated feed water discharged from the feed water heater after cndenser is increased
C . Fewer non-condensable gases are created by the flow of colder seawater
D . More seawater is allowed to pass through the flint stage overflow weir
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Refer to the exhibit. Based on the information given. Which switch will be elected root bridge and why?()https://assets.asklib.com/images/image2/2018072317180691144.png
A . Switch A ,because it has the lowest MAC address
B . Switch C,because it has the lowest priority
C . Switch B,because it has the highest MAC address
D . Switch C,because it is the most centrally located switch
E . Switch A,because it is the most centrally located switch
F . Switch D,because it has the highest priority
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Which command alone will disable trunking on a Layer 2 switch port?()
A . no switchport trunk native vlan vlan-id
B . switchport nonegotiate
C . no switchport mode dynamic desirable
D . switchport mode acce
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A plane perpendicular to the polar axis will never form what line on the Earth’s surface? ()
A . Great circle
B . Equator
C . Small circle
D . Meridia
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If a switch is working in the fail-open mode, what will happen when the switch’s CAM table fills to capacityand a new frame arrives?()
A . A copy of the frame is forwarded out all switch ports other than the port the frame was received on.
B . The frame is transmitted on the native VLAN.
C . The switch sends a NACK segment to the frame’s source MAC address.
D . The frame is dropped.
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You need to set the default gateway of one of your TestKing switches. Which command will set the default gateway to 192.168.12.1 on a Cisco switch?()
A . Switch(config)# ip default-network 192.168.12.1
B . Switch(config)#ip route-default 192.168.12.1
C . Switch(config)# ip default-gateway 192.168.12.1
D . Swicth(config)# ip route 192.168.12.1 0.0.0.0
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In Shrek , Monkey said, “Ha-ha-ha! Never fear, for where there's a will, there's a way, and I have a way. ” 此句意为:“别急,有志者事竟成” ( )
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Because a listener’scan never be exactly the same as a speaker’s, the meaning of a message will never be exactly the same to a listener as to a speaker.
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If you have traveled a lot, you will definitely never suffer from culture shock.
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A bin contains 100 Sty le A notebooks, 100 Style. B notebooks, and 100 Style. C notebooks. Antoine will select 3 notebooks from the bin. How many different selections of 3 notebook styles are possible?
(Note: The order in which the notebooks are selected does not matter.)
A.3
B.6
C.10
D.14
E.27
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Your influence, sir, is evidently() with him: he will never set you in trouble, or willfully hurt you.A、primary
B、popular
C、potent
D、peculiar
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The reason why light is said to be a form. of energy will be explained ______.
A.as following
B.as follows
C.as shown
D.as usual
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Don’t ________ your keys again, or you will never be able to find them!A.misplace
B.notify
C.install
D.relocate
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America will never again have as a nation the spirit of adventure as it ______ before the West was settled.
A.could
B.did
C.would
D.was
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()下面哪一个选项是空缺处的最佳答案?Having a parent who tries to organise your life means you will never learn to make a______.
A、bed
B、meal
C、career
D、decision
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You will never persuade him , he is as stubborn as a mule
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With the fast development of science and technology I think _____ in space by ordinary citizens will never be a daydream.
A travelledB travelC travelsD travelling
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What's intense in a relationship is newness.That's why the great romances of literature are never between people who stay together.
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I'm sure Harry will remember, but why not give him a ring ________ he forgets?
A in the case
B in case of
C in case
D in the case of