C. INCORRECT SECURITY PARAMETERS SUCH AS A WPA PASSPHRASE WILL PREV...

5. C. Incorrect security parameters such as a WPA passphrase will prevent a wireless client device from completing a Layer 2 connection and obtaining an IP address from a DHCP service. If the client device is different technology like 802.11a the device would not have been able to connect. If a static IP address is used, it will not display all zeros. Although a computer virus can create problems for the client device, it would not prevent the device from obtaining an IP address after connecting to the wireless network.