Designing Cisco Enterprise Wireless Networks (ENWLSD) — Question 215

A hospital network has a Cisco WLC running version 7.5.110 code. The WLC supports thousands of handheld devices. Users of the handheld devices report battery life issues when they connect to the wireless network. An IT consulting company is hired to resolve the issue. The company suggests that the WLC be upgraded to 8.1 or later to support new IEEE 802.11-2007 amendments. Which feature increases client battery life?

Answer options

Correct answer: B

Explanation

The correct answer is B, 802.11v, which includes features that allow for better power management for client devices, thereby extending battery life. Options A (802.11w) and C (802.11r) focus on security and fast roaming, respectively, and do not directly impact battery efficiency. Option D (802.1x) relates to network access control and does not enhance client battery performance.