CompTIA A+ Core 2 (220-1202)Operational ProceduresHard
A support technician needs to remotely view and interact with a client's screen to demonstrate a software configuration during a live training session, without requiring the client to expose any inbound firewall ports. Which remote access solution is BEST suited for this scenario?
- ASSH command-line session
- BDirect RDP connection over the public internet
- CCloud-based screen-sharing/collaboration application
- DSite-to-site VPN tunnel
Show answer & explanationAnswer & explanation
Correct answer: C. Cloud-based screen-sharing/collaboration application
A cloud-based screen-sharing/collaboration tool (e.g., a hosted meeting service) establishes an outbound connection from the client to the cloud service, allowing the technician to view and interact with the screen without requiring inbound firewall ports to be opened. This is ideal for ad hoc training sessions, unlike VPNs, direct RDP, or SSH, which are better suited for persistent administrative access.
Why the other options are wrong
- A. SSH provides command-line access, not graphical screen sharing for training.
- B. Direct RDP over the internet requires inbound port exposure and is a security risk.
- D. A site-to-site VPN is designed for connecting networks, not quick ad hoc screen sharing.
Cloud-Based Screen Sharing
A remote access method where both parties connect outbound to a cloud service that relays screen sharing and control, avoiding inbound firewall exposure.
- Ideal for ad hoc support/training sessions
- Avoids need to open inbound firewall ports
- Different from persistent access tools like VPN or RDP
Memory trick: Cloud meets in the middle—no open doors needed.