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單項(xiàng)選擇題A network administrator receives an error message while tring to configure the Ethernet interface of a router with IP address 10.24.24.24/29.which statement explains the reason for this issue?（）

A.The address is a broadcast address
B.The Ehernet interface is faulty
C.VLSM-capable routing protocols must be enable first on the router.
D.This address is a network address.

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1.單項(xiàng)選擇題Which IPv6 address is valid？（）

A.2031：0：130F：：9C0：876A：130B
B.2001：0DB8：0000：130F：0000：0000：08G
C.140BC.2001：0DB8：0：130H：：87C：140B
D.2031：：130F：：9C0：876A：130B

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2.多項(xiàng)選擇題下列哪些是散列函數(shù)（）

A.MD5
B.RSA
C.HMAC
D.SHA-1

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3.單項(xiàng)選擇題Which statement about access lists that are applied to an interface is true？（）

A.you can apply multiple access lists with the same protocol or in different…
B.you can config one access list，per direction，per layer 3 protocol
C.you can place as many access lists as you want on any interface
D.you can apply ony one access list on any interface

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4.多項(xiàng)選擇題Why do large OSPF networks use a hierarchical design?（）

A.to confine network instability to single areas of the network
B.to reduce the complexity of router configuration
C.to speed up convergence
D.to lower costs by replacing routers with distribution layer switches
E.to decrease latency by increasing bandwidth
F.to reduce routing overhead

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5.單項(xiàng)選擇題 Refer to the exhibit.What is the result of setting the no login command？（）

A.The is a virtually limitless supply of IP addresses
B.Telnet access requires a new password at first login
C.Telnet access requires a password
D.Telnet access is denied

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