多项选择题 Which two commands may be used when configuring an IP address for a Gigabit Ethernet interface?（）

单项选择题 Which statement is true regarding the forwarding plane?（）

单项选择题 An administrator is unable to ping any address on the 10.0.19.0/24 subnet. To identify the problem, the administrator uses the command shown in the exhibit. Which step should be taken to solve the problem?（）