單項(xiàng)選擇題A company has a small network,consisting of a single switch and a single router. The switch has been configured with two vlans,and route-on-a-stick is being configured on the router for inter-vlan routing. A trunk is configured to connect the switch to the router.What is the minimum number of router subinterfaces that are required for all the vlans to communicate?()

A.one
B.three
C.two
D.zero


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F.quality of service

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A.Only passwords configured after the command has been entered will beencrypted.
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E.It will encrypt all current and future passwords.

4.多項(xiàng)選擇題Which two are advantages of static routing when compared to dynamic routing?()

A.Security increases because only the network administrator may change the routing tables.
B.Configuration complexity decreases as network size increases.
C.Routing updates are automatically sent to neighbors.
D.Route summarization is compued automatically by the router.
E.Routing traffic load is reduced when used in stub network links.
F.An efficient algorithm is used to build routing tables,using automatic updates.
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5.多項(xiàng)選擇題以下兩個(gè)選項(xiàng)是工作在OSI模型的應(yīng)用層的?()

A.ping
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