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多选题
Which two statements or sets of statements are true about the application of the qos pre-classify command？（）
A
If the classification policy is based upon the ToS byte， the qos pre-classify command is required because the ToS byte only appears in the inner IP header.
B
The ToS byte is copied to the outer header by default. Therefore， the qos pre-classify command is not necessary.
C
With GRE encapsulation， the qos pre-classify command is applied on the tunnel interface. This practice allows for different OoS configurations on each tunnel.
D
With GRE encapsulation， the qos pre-classify command is applied on the physical interface. This practice allows for different OoS configurations on each interface.
E
With IPsec encapsulation， the qos pre-classify command is applied on the physical interface. This practice allows for different OoS configurations on each interface.
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更多 “多选题Which two statements or sets of statements are true about the application of the qos pre-classify command？（）AIf the classification policy is based upon the ToS byte， the qos pre-classify command is required because the ToS byte only appears in the inner IP header.BThe ToS byte is copied to the outer header by default. Therefore， the qos pre-classify command is not necessary.CWith GRE encapsulation， the qos pre-classify command is applied on the tunnel interface. This practice allows for different OoS configurations on each tunnel.DWith GRE encapsulation， the qos pre-classify command is applied on the physical interface. This practice allows for different OoS configurations on each interface.EWith IPsec encapsulation， the qos pre-classify command is applied on the physical interface. This practice allows for different OoS configurations on each interface.” 相关考题
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