Which command configures the router to provide DNS to clients and forward unresolved queries to the internet?

Which command configures the router to provide DNS to clients and forward unresolved queries to the internet?

• A. /ip dns set servers=8.8.8.8
• B. /ip dns cache flush
• C. /system dns set servers
• D. /ip dns set servers=<upstream-dns> allow-remote-requests=yes

Answer: (D)

To have clients obtain DNS from the router and have the router forward anything it can’t resolve to the internet, you need to both specify where to forward those queries and enable the router to answer DNS requests from other devices. The command sets the upstream DNS server(s) the router will use and enables remote requests, so the router acts as a DNS server for clients on the network and forwards unresolved queries to the internet. Without enabling remote requests, the router won’t answer client DNS queries even if upstream servers are set. The other options only cover setting servers or perform unrelated actions, and don’t establish the router as a DNS service for clients.

To have clients obtain DNS from the router and have the router forward anything it can’t resolve to the internet, you need to both specify where to forward those queries and enable the router to answer DNS requests from other devices. The command sets the upstream DNS server(s) the router will use and enables remote requests, so the router acts as a DNS server for clients on the network and forwards unresolved queries to the internet. Without enabling remote requests, the router won’t answer client DNS queries even if upstream servers are set. The other options only cover setting servers or perform unrelated actions, and don’t establish the router as a DNS service for clients.