What is the effect of enabling DNS recursive lookup for clients on MikroTik RouterOS?

• A. The router will block external DNS queries.
• B. Clients on the network can resolve domain names using the router as a DNS resolver.
• C. The router will no longer provide DNS services.
• D. The router will serve DNS only for internal hostnames.

Answer: (B)

Enabling DNS recursive lookup lets the MikroTik router act as a DNS resolver for devices on the network. When a client asks to resolve a domain name, the router performs the full lookup by querying upstream DNS servers, caches the result, and returns the final IP to the client. This means devices can use the router’s IP as their DNS server and rely on it to translate names to addresses. For this to work, upstream DNS servers must be configured so the router has somewhere to query, and LAN clients should be allowed to use the router for DNS. It does not block external DNS queries, nor does it limit resolution to internal hostnames; those would require different settings.