CWNA: Certified Wireless Network Administrator v107 — Question 46

What Linux shell command can be used to view the hardware and PHY capabilities of a wireless adapter in detail including channel widths, output power settings, channels supported, and more?

Answer options

• A. ifconfig
• B. iw phy
• C. netsh wlan show device
• D. iwconfig

Correct answer: D

Explanation

The correct answer is D, iwconfig, as it specifically provides detailed information about wireless network interfaces and their settings. Option A, ifconfig, is used for configuring network interfaces but lacks detailed wireless information. Option B, iw phy, gives information about the physical layer but does not provide the same level of detail for wireless settings as iwconfig. Option C, netsh wlan show device, is a Windows command and not applicable in a Linux context.