If IP routing is enabled, which two commands set the gateway of last resort to the default gateway? (Choose two.)
A. ip default-gateway 0.0.0.0
B. ip route 172.16.2.1 0.0.0.0 0.0.0.0
C. ip default-network 0.0.0.0
D. ip default-route 0.0.0.0 0.0.0.0 172.16.2.1
E. ip route 0.0.0.0 0.0.0.0 172.16.2.1
查看答案
Which two statements about floating static routes are true? (Choose two)
A. They are routes to the exact /32 destination address
B. They are used when a route to the destination network is missing
C. They have a higher administrative distance than the default static route administrative distance
D. They are used as back-up routes when the primary route goes down
E. They are dynamic routes that are learned from a server
Which parameter can be tuned to affect the selection of a static route as a backup.when a dynamic protocol is also being used?
A. link bandwidth
B. hop count
C. link cost
D. administrative distance
E. delay
直连路由和静态路由的管理距离都是0
A. 对
B. 错
烟雾、火焰传感器是什么设备?( )
A. 数字量
B. 模拟量
C. 继电器
D. ZigBee