Crucial Exams

CompTIA Server+ SK0-005 Practice Question

During a dual-stack pilot, a Windows Server 2022 VM automatically configures a global IPv6 address by SLAAC. The host can still reach internal resources over IPv4, but any connection that resolves to an IPv6 destination (for example, "tracert -6 2606:4700:4700::1111") fails with "Destination host unreachable."

ipconfig /all shows only a link-local gateway address (fe80::1) and route print -6 displays on-link /64 prefixes but no ::/0 entry. Which change will restore end-to-end IPv6 connectivity while keeping the network in dual-stack mode?

  • Configure a valid IPv6 default gateway (::/0) for the VM, either via router advertisements or a static route.

  • Reduce the interface MTU from 1500 to 1280 bytes to avoid IPv6 fragmentation.

  • Delete the external AAAA records so DNS returns only IPv4 A records.

  • Disable IPv4 on the NIC so the host uses only IPv6 for all traffic.

CompTIA Server+ SK0-005
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