The following is a mistake in the priority of static routes in Huawei devices

• A.The priority of static routes is divided into internal priority and external priority. Administrators can modify external priority.
• B.The priority value of the static route is 255, indicating that the route is unavailable.
• C.The static router priority value ranges from 0 255
• D.The default value of static router priority is 60.

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The following is a correct description of ADSL

• A.downlink transmission rate symmetric DSL technology
• B.asymmetric uplink and downlink transmission speed of DSL technology
• C.downlink rate than upstream rate can be large
• D.uplink downlink rate can be larger than the rate

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In the OSI reference model, from the bottom to the top of the order is correct

• A.physical layer, data link layer, transport layer, presentation layer, network layer, session layer, application layer
• B.physical layer, data link layer, network layer, transport layer, presentation layer, session layer, application layer
• C.physical layer, transport layer, data link layer, network layer, presentation layer, session layer, application layer
• D.physical layer, data link layer, network layer, transport layer, session layer, presentation layer, application layer

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What is the length of the Traffic Class field in the IPv6 packet header?

• A.2
• B.6
• C.8
• D.4

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The following statement is true about the default route is ().

• A.Dynamic routing protocols can also generate a default route
• B.can only be manually configured by the administrator
• C.The default route, also known as
• D.is a special kind of static route

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