什么是“第二类错误(Type Ⅱ error)”？
LCP,作为PPP的一部分,主要是用于协商下列哪些功能()。A.callbackB.IP addressC.纠错（error correction）D.认证类型（authentication type）
点击查看答案
什么是“第一类错误(Type Ⅰ error)”？
SSEC代表什么意思？（）A、Static Source Error CorrectionB、Second Static Electric ControlC、Second Static Error CorrectionD、以上都不对
PHP文件上传时，可以返回上传文件错误代码的数组成员是（）。A、$_FILES[浏览框名称]['name'] B、$_FILES[浏览框名称]['type'] C、$_FILES[浏览框名称]['size'] D、$_FILES[浏览框名称]['error']
Error与Exception有什么区别？
typeⅠerror
In a deployment using the lightweight access points， clients set up to authenticate with EAP-PEAPor EAP-Cisco Wireless （LEAP） cannot authenticate. Upon inspection of the Failed Attempts reportyou see the following error： "Unknown network access server NAS." What two problems can causethis type of failure？（）A、misconfigured IP address of the AAA server on the wireless controllerB、misconfigured IP address of the wireless LAN controller on the AAA serverC、misconfigured EAP type on the wireless LAN controllerD、misconfigured shared secret on the wireless LAN controllerE、misconfigured EAP type on the AAA server
