The tenants can use optional tunnelling for confidentiality.
We show that this can be accomplished by using optional authenticated flow marking.
This flexibility is achieved using optional features (or tools) that can be applied solely or in combination.
However, it is possible to use optional midambles defined in mobile WiMAX at the cost of decreasing the throughput of the system.
Versatile dual-power-source design, which offers the choice of either a rechargeable lithium-ion battery or four AA-size battery power (using optional AA Battery Holder D-BH109).
W3C introduced in 2012 the speech module [23] for defining the properties of the aural cascade style sheets [24] that enable authors to declaratively control the rendering of documents via speech synthesis or using optional audio cues.
This report is commonly referred to as "certified payrolls", and is often done using Optional Form WH-347 (OMB No. 1215-0149), a standard form pre-designed by the OMB.
Weapons and armor can be enhanced using optional "strap-ons", such as fake vampire teeth, bubble gum, or a Jewpacabra claw.
In addition, schools can choose to assess pupils at the end of Year 5 using optional SATs, as this participating school did.
The classification includes more than 14,000 different codes allowing expansion to over 16,000 by using optional sub-classifications.
