Techniques are disclosed that enable an application to prioritize its traffic in an application-specific manner, such that traffic which is most important to this application can be prioritized over traffic that is less important to this application, where this prioritization information is reflected in differential treatment of the traffic within the network. The support assembly includes structure for vertically adjusting the vertical spacing of the work platform above the base, and further includes an upper end. A blade holding portion is pivotally movably connected to a front end of the plunger. The shield preferably does not touch the active area of the touch sensitive screen when the user is not touching the shield but only viewing the touch sensitive screen through the shield. A second interlayer dielectric is formed to separate the landing plug.