When configuring dual-link hot backup, the engineer configured the CAPWAP heartbeat detection interval to be 20 seconds, and the dual-link backup function is enabled, then how long does the AP detect the timeout of the main link and perform the main-standby switchover?

• A.90 seconds
• B.60 seconds
• C.20 seconds
• D.75 seconds

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In a broadcast type network, what is the default time interval for DIS to send Hello?

• A.5s
• B.3.3s
• C.10s
• D.40s

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ip ip-prefx List1 index 10 permit 10.1.0.0 24 greater-equal () less-equal 32 means that the first 24 bits of the matching network address are the same as 10.1.0.0, and the network mask length is greater than or equal to 26 and less than or equal to 32. (Use Arabic numerals)

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Which of the following Hello messages is not included in the IS-IS protocol?

• A.Leve1-1 LAN lH
• B.P2MP llH
• C.P2PIlIH
• D.Leve1-2 LANIIH

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Which of the following description about AS_PATH is wrong?

• A.When there are two or more routes to the same destination in the router, the advantages and disadvantages of these routes can be compared with each other through this attribute, and the longer the AS_PATHA path is super preferred
• B.AS_PATH refers to the list of ASs experienced by BGP routing in the transmission path
• C.AS_ PATH is a recognized attribute in BGP
• D.BGP not accept AS_ PATH of the present contained AS Number routes

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