The Management Information Base (MIB) (Management Information Base) is a virtual database that only exists on the NMS. ()

• A.False
• B.True

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Telnet is based on TCP protocol.

• A.False
• B.True

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OSThe I reference model from high-level to bottom-level is ()

• A.Application layer, transport layer, network layer, data link layer, physical layer
• B.Application layer Presentation layer Session layer Transport layer Network layer Data link layer Physical layer
• C.Application layer Session layer Presentation layer Transport layer Network layer Data link layer Physical layer
• D.Application layer Presentation layer Session layer Network layer Transport layer Data link layer Physical layer

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The classic network forwarding method is based on router routing table forwarding. The forwarding method of OpenFlow switches is based on flow table forwarding. Which of these two forwarding methods are correct? ()*

• A.The matching method of the flow table is to match the MA of the flow at the same timeC.Address andIP address
• B.The routing table is of fixed length. A device can only have one public routing table
• C.The matching method of the address table is to match the route of the destination network segment with the longest mask
• D.The flow table is getting longer. A network device can only have one flow table

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The router forwards data according to the IP routing table, and the Layer 2 switch forwards data according to the MAC. address table

• A.False
• B.True

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