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下列哪些对于动态原始路由 （dynamic source routing, DSR) 演算法的叙述是正确的 ？
A．所有路由都事先找好并记录在路由表中, 这样有数据包要传送时就可以立即传送
B．有数据包要传送且无既有路由可到目的主机时, 才开始寻找路由
C．一个路由请求数据包 (RREQ) 可能会得到多条到达目的地主机的路由
D．一个路由请求数据包 (RREQ) 只会得到一条到达目的地主机的路由
参考答案和解析
由路由协议动态更新和维护。
更多 “下列哪些对于动态原始路由 （dynamic source routing, DSR) 演算法的叙述是正确的 ？A．所有路由都事先找好并记录在路由表中, 这样有数据包要传送时就可以立即传送B．有数据包要传送且无既有路由可到目的主机时, 才开始寻找路由C．一个路由请求数据包 (RREQ) 可能会得到多条到达目的地主机的路由D．一个路由请求数据包 (RREQ) 只会得到一条到达目的地主机的路由” 相关考题
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Dynamic routing is created adhoc and static routing cannot be changed once implemented.B
Static routing is hard-coded and requires significant administrative overhead for large networks.C
Static routing requires little administrative overhead and dynamic routing requires significant administrative overhead.D
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单选题Which statement describes an advantage of dynamic routing?（）A
Dynamic routing is typically more scalable when compared to static routing.B
Unlike static routing, dynamic routing requires no initial user configuration.C
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OSPFC
IS - ISD
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单选题What is an advantage of dynamic routing?（）A
Unlike static routing, dynamic routing provides redundant IP addresses for end-user devices.B
Unlike static routing, dynamic routing requires no initial user configuration.C
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Dynamic routing provides DNS services along with IP connectivity; static routing does not.
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单选题What is an appropriate use of a default route？（）A
to provide routing to a local web serverB
to provide routing from an ISP to a stub networkC
to provide routing that will override the configured dynamic routing protocolD
to provide routing to a destination that is not specified in the routing table and which is outside the local network
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单选题What is an advantage of dynamic routing?（）A
Unlike static routing, dynamic routing provides redundant IP addresses for end-user devicesB
Unlike static routing, dynamic routing requires no initial user configurationC
Dynamic routing can provide increased network availability when compared to static routingD
Dynamic routing provides DNS services along with IP connectivity; static routing does not
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单选题What is an advantage of dynamic routing?（）A
Unlike static routing, dynamic routing provides redundant IP addresses for end-user devicesB
Unlike static routing, dynamic routing requires no initial user configurationC
Dynamic routing can provide increased network availability when compared to static routingD
Dynamic routing provides DNS services along with IP connectivity, static does not
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