For what purpose is ad hoc networking mode used in wireless networking?

Ad hoc networking mode is specifically designed to allow wireless devices to communicate directly with each other without the need for a centralized access point or infrastructure. This mode enables users to quickly set up a temporary network for various purposes, such as file sharing or gaming, when no existing network is available.

In this scenario, devices can establish a peer-to-peer connection, making ad hoc networking particularly useful in situations where a traditional network setup with routers or access points would be impractical or impossible. The flexibility of ad hoc networks enables devices to join or leave the network dynamically, appealing to environments that require quick and informal connections among multiple devices.

The other options presented relate to functionalities that do not align with the primary purpose of ad hoc networking. For example, increasing bandwidth or extending the range involves infrastructure that supports better connectivity, which ad hoc networking does not. Similarly, while security is an important aspect of networking, ad hoc mode does not inherently provide better security features through encryption compared to established networks.