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單項選擇題

A BGP router should use three export policies named add-communities, no-rfc1918-routes, and rejected-unwanted. Which export statement places the add-communities policy immediately before the default BGP policy?()

A.export [add-communities no-rfc1918-routes ejected-unwanted];
B.export [no-rfc1918-routes add-communities rejected-unwanted];
C.export [add-communities rejected-unwanted no-rfc1918-routes];
D.export [no-rfc1918-routes rejected-unwanted add-communities];

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