构成路基的三要素是（） ["路基宽度","地面横坡度","路基高度","路基边坡坡度"]
In order to configure two routers as anycast RPs，which of these requirements，at a minimum， must be satisfied？（） ["Multicast Source Discovery Protocol mesh-groups must be configured between the two anycast RPs.","The RPs must be within the same IGP domain.","Multicast Source Discovery Protocol must be configured between the two anycast RPs.","The two anycast RPs must be IBGP peers."]
PCA-6436工业级PC机（486级）的主板上设有256KB的高速缓存（cache），其功能为（） ["提高系统的处理速度","扩展主存容量","用作RAM半导体盘","用作shadowRAM"]
While deploying a new switch， you accidently connect ports 3/12 and 3/18 together， creating a loop. STP detected it and placed port 3/18 in blocking mode. Why did STP not place port 3/12 in blocking mode instead？ （） [" Port 3\/12 was already up and forwarding before the loop was created."," Port priority is based on lowest priority and lowest port number."," You connected the wire on port 3\/18 last."," None of the above， it is purely random."]
登陆电子信箱，需要使用（）。 ["实名和密码","邮箱地址和密码","帐号和密码","手机号码和密码"]
在泰勒的设计模式中，课程目标的来源有三个方面：（）、学校以外的现实生活和学科内容。
