Traceroute is a network diagnostic tool that can help troubleshoot connectivity issues. It works by sending out packets and recording the time it takes for each packet to reach the destination. By doing so, it can identify the routers that the packets pass through and measure their responsiveness. If there is a connectivity issue, traceroute can pinpoint the specific router that is causing the problem. Therefore, in this scenario, using traceroute can help determine if each of the reachable routers between the computer and the web server are responsive, potentially identifying the source of the connection problem.

To open a TextEdit document stored in iCloud from your OS X user account with iCloud enabled, you should go to the TextEdit application and select "Open" from the "File" menu. Then, click on "iCloud" and choose the specific document you want to open. This allows you to access and open the desired TextEdit document stored in iCloud directly from the TextEdit application.

All three buses, USB, FireWire, and Thunderbolt, allow an Intel-based Mac to start up from a drive connected to the bus. This means that if a Mac is connected to a USB, FireWire, or Thunderbolt drive, it can boot up from that drive instead of its internal hard drive. This feature provides flexibility and convenience for Mac users who may need to start up their computer from an external drive for various reasons such as troubleshooting, data recovery, or running multiple operating systems.

To reset the printing system in OS X Mountain Lion, you need to open the Print & Scan preferences and Control-click in the Printers list. From the shortcut menu that appears, select the option to reset the printing system. This action will reset all printers and remove any installed printer drivers, allowing you to start fresh with the printing system.

In OS X Mountain Lion, you can browse both SMB (Server Message Block) and AFP (Apple Filing Protocol) file service hosts in the Network folder. SMB is a protocol used for file sharing, printer sharing, and communication between computers on a network. AFP is a proprietary network protocol developed by Apple for sharing files and accessing network services. Both SMB and AFP are supported in OS X Mountain Lion, allowing users to browse and access files from hosts using either of these file service protocols.