WLANs are increasingly popular because they enable cost-effective connections amongpeople, applications and data that were not possible, or not cost-effective, in the past.For example, WLAN-based applications can enable fine-grained management of supply and distribution ___24___ to improve their efficiency and reduce ___25___. WLANs can also enable entirely new business processes. To cite but one example, hospitals are using WLAN-enabled point-of-care applications to reduce errors and improve overall ___26___ care.WLAN management solutions provide a variety of other benefits that can be substantial but difficult to measure. For example, they can protect corporate data by preventing ___27___ through rogue access points. They help control salary costs, by allowing IT staffs to manage larger networks without adding staff. And they can improve overall network management by integrating with customers’ existing systems, such as OpenView. Fortunately, it isn’t necessary to measure these benefits to justify investing in WLAN management solutions, which can quickly pay for themselves simply by minimizing time-consuming ___28___ and administrative chores.
28（）
A.exploitation
B.connection
C.department
D.deployment
参考答案：D
解析：
无线局域网(WLAN)目益流行起来了，因为它可以在用户、应用和数据之间建立有效的连接，而这一切在过去是无法实现或无法有效实现的。例如，基于WLAN的应用能够对供应和分配链(chains)进行细粒度的管理，以改进效率和减少开销(overhead)。 WLAN也可以建立全自新的商业过程。可以举出无数的例子中的一个，例如许多医院正在使用基于WLAN的监护应用来减少差错，全面改进对病人(patient)的护理。WLAN管理解决方案提供的其他各种好处都是很实在的，然而却很难度量。例如，它可以保护公司的数据免于遭受通过流氓访问点的入侵(intrusion)危害；它可以让IT人员管理更大的网络，从而减少管理职员，控制薪金开支；而且它可以通过集成现有的用户系统(例如，OpenView等)改进网络的全面管理。幸运的是，用户不必为调整WLAN管理方案而计算各种收益，因为减少了部署(deployment)时间和管理杂务就明显补偿了引进WLAN的开销。