当前位置:国家开放大学(信息技术与教育技术(1))题库
问题:
[填空题] 光盘存储器主要分为()型光盘和( )型光盘,( )型指光盘上的内容是固定的不能()和(),只能()其中的内容。读写型则允许人们对光盘内容进行(),可以()原来的内容,()新的内容。用于微型计算机的光盘主要有两种:VCD和DVD。
两个完全相同材料的直流铁芯线圈,铁芯截面积S1=2S2,磁路平均长度和线圈匝数相同,当通入的直流电流I2=2I1时,两铁芯中的磁通关系为() ["Φ1<\/sub>=2Φ2<\/sub>","Φ1<\/sub>=Φ2<\/sub>","Φ1<\/sub>=4Φ2<\/sub>","2Φ1<\/sub>=Φ2<\/sub>"]
教育实验研究的主要功能。
Which of these is a correct description of SSO?() [" It will only become active after a software failure."," It will only become active after a hardware failure."," It requires that Cisco NSF be enabled in order to work successfully."," It synchronizes the MAC·, FIB·, and adjacency tables between Active and Standby RouteProcessors."]
Which of these recommended designs provides the highest availability?() [" map the Layer 2 VLAN number to the Layer 3 subnet"," control route propagation to edge switches using distribute lists"," use a Layer 2 distribution interconnection link with HSRP or GLBP"," use a Layer 3 distribution interconnection link with HSRP or GLBP"," use equal-cost Layer 3 load balancing on all links to limit the scope of queries in EIGRP"]
固定资产投资中的积极部分有()。 ["工艺设备购置费","建安工程费用","试验研究费","生产家具购置费","工器具购置费"]
光盘存储器主要分为()型光盘和( )型光盘,( )型指光盘上的内容是固定的不能()和(),只能()其中的内容。读写型则允许人们对光盘内容进行(),可以()原来的内容,()新的内容。用于微型计算机的光盘主要有两种:VCD和DVD。