The routing table output information of a router is shown in the figure. Which of the following statements is correct? (Multiple choice)

• A.the local router to the NextHop of 10.0.2.2 is 10.0.21.2
• B.the local router to the NextHop of 10.0.2.1 is 10.0.21.2
• C.the local router to the NextHop of 10.0.2.2 is 10.0.12.2
• D.the local router to the NextHop of 10.0.0.1 is 10.0.12.2

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Which of the following port states is not included in the RSTP protocol?

• A.Learning
• B.Discarding
• C.Forwarding
• D.Blocking

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If the broadcast address of a network is 172.16.1.255, then what may its network address be?

• A.172.16.1.128
• B.172.16.2.0
• C.172.16.1.1
• D.172.86.1.253

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As shown in the figure below, which port of the following switches will be blocked?

• A.SWA G0/0/3
• B.SWB G0/0/3
• C.SWC G0/0/2
• D.SWC G0/0/1

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What is the coverage area of an AP in WLAN?

• A.SSID
• B.BSS
• C.ESS
• D.BSSID

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