Which of the following statements is true about an STP-enable port in forwarding state?

• A.The port forward user traffic and processes BPDUs
• B.The port does not process BPDUs or forward user traffic
• C.The port creates MAC address entries based on the received user traffic but does not forward user traffic
• D.The port only receive and processes BPDUs and does not forward user traffic

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According to the geographical scope of coverage, the network can be divided into

• A.Campus
• B.WAN
• C.LAN
• D.Enterprise Network

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In the PPP frame format, the Protocol field is 0xC223. What is the protocol?

• A.LCP
• B.PAP
• C.CHAP
• D.NCP

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Refer to the graphic. An administrator has configured OSPF on the two routers, following which he then implements the command silent-interface s0/0/1 on RTA. What effect will this command have on the network?
(Multiple Choice)

• A.The link information advertised by RTB will be maintained in the Link State Database of RTA.
• B.The configuration will not affect the OSPF neighbor relationship between the two routers.
• C.The link information advertised by RTB will no longer be maintained in the Link State Database of RTA.
• D.The OSPF neighbor relationship will fail between two routers.

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An Ethernet frame is captured by network protocol analyzer tool and the value of Type/Length field is
0x0800.
Which of the following statements about the frame are correct? (Choose two)

• A.Its upper layer protocol is IPX
• B.Its upper layer protocol is IP
• C.The frame structure of the frame is Ethernet_II
• D.The frame structure of the frame is 802.3

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