从交易标的看，在线电子交易可分为（）。 在线货物销售。 电子信息交易。 在线服务。 完全在线交易。
Refer to the exhibit. Which Catalyst switch interface command would be used to cause the switch to instruct the phone to override the incoming CoS from the PC before forwarding the packet to the switch？（） mls qos cos 2 override。 switchport priority extend cos 11。 switchport priority extend trust。 switchport priority extend none。 mls qos cos 2。 switchport priority extend cos 2。
自动扶梯、自动人行道出现（）情形时，开关断开的动作必须通过安全触点或安全电路来完成。 无控制电压。 电路接地的故障。 梯级或踏板下陷。 扶手带人口保护装置动作。 控制装置在超速和运行方向非操纵逆转下动作。
生物群落是（）。 A.生物偶然的组合 。 B.生物有规律的组合 。 C.生物随意的组合 。 D.生物杂乱无章的组合。
You are the network administrator for Test King. The network consists of a single Active Directory domain named The domain contains Windows Server 2003 computers and Windows XP Professional computers. The Default Domain Policy has been modified by importing a security template file, which contain several security settings. A server named TestKing1 cannot run a program that us functioning on other similarly configured servers. You need to find out whether additional security settings have been added to the local security policy on TestKing1. To troubleshoot, you want to use a tool to compare the current security settings on TestKing1 against the security template file in order to automatically identify any settings that might have been added to the local security policy. Which tool should you run on TestKing1?（） Microsoft Baseline Security Analyzer (MBSA)。 Security Configuration and Analysis console。 gpresult.exe。 Resultant Set of Policy console in planning mode。
By default, how often does a router running IGRP send its complete routing table to its neighbors?（）
