单选题
WLANs are increasingly popular because they enable
cost-effective connections among people, 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{{U}} {{U}} 24 {{/U}} {{/U}}to improve their
efficienty and reduce{{U}} {{U}} 25 {{/U}} {{/U}}. 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{{U}} {{U}} 26 {{/U}} {{/U}}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
{{U}} {{U}} 27 {{/U}} {{/U}}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 mananement by
integrating with customers' existing systems, such as OpenView and UniCenter.
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{{U}} {{U}} 28 {{/U}} {{/U}}and
administrative chores.