What two things will a router do when running a distance vector routing protocol?() Send periodic updates regardless of topology changes.。 Send entire routing table to all routers in the routing domain.。 Use the shortest-path algorithm to the determine best path.。 Update the routing table based on updates from their neighbors.。 Maintain the topology of the entire network in its database.。
How do routers in an IS-IS Level-1 domain exit to reach other Level-1 (L1) domains?() Level-1(L1) routers use default routes announced by Level-2(L2) routers in Level-1(L1) domain。 Level-1 routers use default routes installed based on ATT bit (Attach Bit) in announcements from Level-1-2(L1/L2) router。 Level-1 routers use specific routes, for other Level-1 domain, announced by Level-1-2(L1/L2) by route-leaking feature of Cisco IOS。 Level-1 routers use specific routes, for other Level-1 domain, announced by Level-2(L2) by route-leaking feature of Cisco IOS。
怎样理解设计观念的特点?
药箱在列车途中分别由()和()负责保管, 业务员。 广播员。 列车员。 乘警。
如下图所示的传输链路上,网元A为1650SM设备,其余网元B,C,D,E,F为1660SM设备,网元A的一路STM1的信号与网元B的STM1端口连接,该路信号再以AU4单向连接到网元B的另一个STM-16端口的某一个AU4上,该AU4通道在链路上一直中继传输到网元F,最后终接于F的某一个STM1端口,问当A,B网元之间的线路中断后,在网元B的STM-1端口单元上会有()告警 LOS。 LOF。 MS-AIS。 AU-AIS。 AU-LOP。
Which access methods can CS-MARS use toget configuration information from an Adaptive SecurityAppliance (ASA)? ()