Which two steps are required for a Kompella Layer 2 VPN？（）
A. Configure a site ID for each CE
B. Configure a VPN label for each VPN
Configure a MP-BGP session to each PE
D. Configure an Extended LDP Session to each PE
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职位分类中强调的是（）。
A. 以“人”为中心
B. 以“事”为中心
C. 以“人”与“事”为中心
D. 以职务为中心
Auserisbrowsingtoanewlycreatedinternalsitecalledwww.comptia.org.Afterputtingincredentialsthepagecomesupblank.WhichofthefollowingisMOSTlikelythecause?（）
A. Theusermustaddthenewsitetothelocallogfile.
B. Aproxyexceptionhasnotbeenconfigured.
C. SMTPhasnotbeenconfigured.
D. Theloopbackaddresshasnotbeenconfigured.
PE1 has connections to VPN sites that are served by three remote PE routers. How many LSP’s must be established to support 2547bis？（）
A. an LSP for each local CE device
B. an LSP for each remote PE device
C. an LSP for each remote CE device
D. an LSP for each CE facing interface
最早颁布《职位分类法》，用职位分类制度管理国家公务员的国家是（）。
A. 德国
B. 美国
C. 英国
D. 法国
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