Final answer:
In iOS 5.x, an iOS user can authorize connecting to wireless networks by enabling the 'Ask to join' setting.
Step-by-step explanation:
In iOS 5.x, to authorize connecting to wireless networks, an iOS user needs to enable the setting 'Ask to join.' This setting allows the user to manually choose which wireless networks to connect to instead of automatically connecting to all networks that are broadcasting. By enabling this setting, the user will be prompted to ask for permission to join a wireless network.