Which DHCP address allocation mode is suitable for temporary network access?

Dynamic allocation is the most suitable mode for temporary network access because it allows devices to automatically obtain IP addresses for a limited duration, typically defined by a lease time. When a device connects to the network, the DHCP server assigns it an IP address from a pool of available addresses. This allocation is temporary, granting the device network access for a specified period before releasing the IP address back to the pool for use by other devices. This mode is efficient for situations like guest networks or short-term connections, where devices do not need a permanent address.

The other modes have different use cases; automatic allocation assigns IP addresses permanently to devices, which is not ideal for temporary access scenarios. Manual allocation requires pre-configuring a specific IP address for each device, making it less flexible for users who only need temporary access. The option stating 'manual or dynamic allocation' does not specifically focus on the need for temporary access, as it includes options that are not suited for such a need.