[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f2RDxCcgsrQqCD4KI-oifWtm8CqAJz_sIlWWYnyd3AhA":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":31,"type":32},[],"2024-12-27 02:06:57",174391321,[8,9,10,11],"gateway","hub","router","switch",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},20,"f132e9756f230253ab205f8694124078","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbfa9efe88fd2502a5c2c79197c55ebb1.jpg","计算机网络（双语）","work_39595511","NetFun Review: Trans & App","A ( )is a physical-layer device that acts on individual bits rather than on frames",[21,33,39,48,57,66,75,84,93,102],{"answer":22,"createTime":23,"id":24,"options":25,"question":30,"source":31,"type":32},[],"2024-12-27 02:06:56",174391303,[26,27,28,29],"twisted-pair wire","fiber optics","coaxial cable","satellite","In the following options, which one is not a guided media? ( )","v1",0,{"answer":34,"createTime":5,"id":35,"options":36,"question":38,"source":31,"type":32},[],174391305,[9,11,37,10],"repeater","Which of the following devices is not cut-through device? ( )",{"answer":40,"createTime":5,"id":41,"options":42,"question":47,"source":31,"type":32},[],174391307,[43,44,45,46],"Both slotted ALOHA and CSMA\u002FCD are random access protocols","A transmission node transmits at the full rate of the channel","With random access protocol, there may be empty slots","When a collision happens, each node involved in the collision retransmits at once","Which of the following four descriptions about random access protocol is not correct? ( )",{"answer":49,"createTime":5,"id":50,"options":51,"question":56,"source":31,"type":32},[],174391309,[52,53,54,55],"Closing a TCP connection","TCP congestion control","TCP connection setup","TCP flow control","The FIN segment is used for____",{"answer":58,"createTime":5,"id":59,"options":60,"question":65,"source":31,"type":32},[],174391311,[61,62,63,64],"DHCP uses TCP as its underlying transport protocol","The DHCP server will offer the same IP address to a host when the host requests an IP address","DHCP is C\u002FS architecture","The IP address offered by a DHCP server is valid forever","Which of the following four descriptions about DHCP is correct? ( )",{"answer":67,"createTime":5,"id":68,"options":69,"question":74,"source":31,"type":32},[],174391313,[70,71,72,73],"RIP","ARP","OSPF","IP","Because there are both network-layer addresses (for example, Internet IP addresses) and link-layer addresses (that is, LAN addresses), there is a need to translate between them. For the Internet, this is the job of ( )",{"answer":76,"createTime":5,"id":77,"options":78,"question":83,"source":31,"type":32},[],174391315,[79,80,81,82],"real-time audio","file transfer","Web documents","E-mail","In the following four applications, which one is both bandwith-sensitive and require tight timing constraints",{"answer":85,"createTime":5,"id":86,"options":87,"question":92,"source":31,"type":32},[],174391317,[88,89,90,91],"Reliable data transfers and flow controls","In-order data transfers","Delay guarantees and bandwidth guarantees","Congestion controls","Which of the following services is not provided by TCP",{"answer":94,"createTime":5,"id":95,"options":96,"question":101,"source":31,"type":32},[],174391319,[97,98,99,100],"VC networks","both A and B","TDM","FDM","Which of the following option belongs to the circuit-switched networks? ( )",{"answer":103,"createTime":5,"id":6,"options":104,"question":19,"source":31,"type":32},[],[8,9,10,11]]