A conference center assigns guest devices addresses from a single 192.168.50.0/24 network. Near mid-day, new visitors report that they cannot obtain an IP address and instead receive APIPA (169.254.x.x) addresses. The DHCP management console shows the scope is 100 % utilized. Which DHCP configuration change is MOST likely to restore connectivity quickly without altering the existing subnet or routing design?
Reserve the first twenty IP addresses for infrastructure devices.
Disable dynamic DNS updates for the scope.
Add an option that provides the default gateway address.
Reduce the lease duration from eight hours to thirty minutes.
Shortening the scope's lease duration causes unused addresses to return to the pool more frequently. This frees addresses for new clients without requiring subnet changes. Disabling dynamic DNS, adding a default-gateway option, or reserving additional addresses do not release any new leases and, in the last case, would further reduce the available pool.
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