Refer to the exhibit. The command “show ip interface brief” has been issued on Router “R1”. The result is shown in the exhibit, what is true about the interfaces shown in the
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static routing configuartion on cisco router using serial port. | Learn Linux CCNA CEH IPv6 Cyber-Security Online
![Interface and Line Numbers in Cisco Routers - DavidontheCloud.com - David Papkin Technical Resources Interface and Line Numbers in Cisco Routers - DavidontheCloud.com - David Papkin Technical Resources](http://www.cisco.com/c/dam/en/us/support/docs/routers/3725-multiservice-access-router/62611-62611a.gif)