根據下面的文字資料回答 71~75 題 n the following essay,each blank has four choices.Choose
根據下面的文字資料回答 71~75 題 n the following essay,each blank has four choices.Choose the most suitable one from the four choices and write down in the answer sheet.
Open Shortest Path First(OSPF)is a( 1 )routing algorithm that( 2 )work done on the OSI IS-IS intradomain routing protocol.This routing,as compared to distance-vector routing,requires( 3 )processing power.The Dijkstra algorithm is used to calculate( 4 )OSPF routing table updates only take place when necessary,( 5 )at regular intervals.
第6題:文中( 1 )處正確的答案是( )。
A.distance-vector
B.link-state
C.flow-based
D.selective flooding
正確答案:BOSPF(Open Shortest Path First)是一個內部網關協議(Interior Gateway Protocol,IGP),用于在單一自治系統(Autonomous System,AS)內決策路由。與RIP相對,OSPF是鏈路狀態路由協}義,而RIP是距離矢量路由協議。鏈路是路由器接口的另一種說法,因此oSPF也稱為接口狀態路贏協議。0SPF通過路由器之間通告網絡接口的狀態來建立鏈路狀態數據庫,生成最短路徑樹,每個0SPF路由器使用這些最短路徑構造路由表。
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