100-150 Question 238
Select 4You are a network technician tasked with troubleshooting a remote branch office router. The router is not accessible through the Network Management System (NMS), but you can confirm that it is powered on and connected to the network. Which of the following methods could you use to remotely access the router and resolve the issue?
- A
Use SSH to connect to the router if its IP address is reachable
- B
Use Remote Desktop Protocol (RDP) to directly access the router's configuration interface
- C
Establish a VPN connection to the branch network and then use SSH or a terminal emulator
- D
Access the router via Telnet if SSH is unavailable and Telnet is enabled on the router
- E
Use a cloud-managed network dashboard (e.g., Cisco Meraki) if the router supports it
Show answer and explanation
Correct answers: A, C, D, E
Explanation
To troubleshoot a router remotely, you must use appropriate remote access methods. SSH is the most secure and preferred option, but Telnet can be a fallback if SSH is unavailable. Establishing a VPN connection is essential if the router is on an internal network and not directly accessible. Additionally, cloud-managed networks like Cisco Meraki provide centralized tools for managing and troubleshooting devices. RDP, however, is not applicable for directly accessing router configurations.
- A. Correct.
SSH is a secure method for remotely accessing network devices. If the router's IP address is reachable and SSH is enabled, this is a valid option.
- B. Incorrect.
RDP is not used to directly configure network devices like routers. It is typically used to access Windows or other graphical desktop environments.
- C. Correct.
Establishing a VPN to the branch network allows you to securely connect to the internal network, after which you can use tools like SSH or a terminal emulator to access the router.
- D. Correct.
Telnet can be used if SSH is unavailable and Telnet is enabled on the router. However, it is less secure than SSH and is not recommended unless absolutely necessary.
- E. Correct.
If the router is part of a cloud-managed network (e.g., Meraki), you can use the cloud dashboard to access or troubleshoot the device.