单项选择题
Given the following LSP configuration, which statement is true? （）
A. The router will use path1 when it is available and stable.
B. The router will use path3 when it is available and stable.
C. The router will attempt to establish path2 only when path1 and path3 are down.
D. The router will attempt to establish path1 only when path2 and path3 are down.
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What is required to enable the use of metrics larger then 63 for traffic engineering in IS-IS?（）
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B. Enable wide-metrics-only under protocols IS-IS.
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Which JUNOS software show command allows you to view BGP attributes for a given route?（）
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