An administrator replaces the network card in a web server. After replacing the network card some users can access the server but others cannot. Which of the following is the FIRST thing the administrator should check?（）
下面哪些路由器带有LCD显示屏（）.A、NE20B、NE40C、NE80ED、NE5000E
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What is the action of "pop" in the context of MPLS switching？（）A、It removes the top label in the MPLS label stack.B、It adds a top label in MPLS label stack.C、It replaces the top label in the MPLS label stack with another value.D、It replaces the top label in the MPLS label stack with a set of labels.E、None of above.
NE40和NE80硬件上的联系和区别，以下描述正确的是（）。A、NE40直接继承了NE80的LPU板，能够直接使用B、NE80、NE40支持LPU板数量、总交换容量不同C、NE40将NE80的交换和主控功能集成在了一块单板上（SRU）D、NE40可以支持二层以太网单板
假定在文件服务器上运行IPX协议，且网卡为NE2000，则执行（）命令。A、BIND NE2000 TOIPXB、BIND IPXTO NE2000C、LOAD IPXTO NE2000D、LOAD NE2000 TOIPX
What does a BGP route reflector do when reflecting a route?（）A、It prepends its cluster identifier to the route's cluster list.B、It prepends its own originator identifier to the route's cluster list.C、It replaces the route's cluster identifier with its own cluster identifier.D、It replaces the route's originator identifier with its originator identifier.
NE20系列路由器有包括：（）。A、NE20-2B、NE20-4C、NE20-6D、NE20-8
料饼提升机的型号（）A、NE600B、NE400C、NE800D、NE200
