Refer to the graphic.

The host has a problem establishing a telnet connection with the router attached to interface G0/0/0. Which of the following steps can be used to help the administrator identify the problem? (Choose two)
- Check whether the host has configured the gateway IP address.
- Check whether the switch has configured the gateway IP address.
- Use the ping tool to check connectivity between host and router.
- Check the telnet server configuration is right on the router.
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