Master the AZ-800 Challenge 2025 – Rule the Windows Server Hybrid World!

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What is the first step for a Windows 10 computer attempting to resolve a hostname into an IP address?

Broadcast a NetBIOS name query

Check the DNS resolver cache

The first step for a Windows 10 computer attempting to resolve a hostname into an IP address is to check the DNS resolver cache. This cache temporarily stores information about previously resolved hostnames to speed up the resolution process. When a user or an application requests the resolution of a hostname, the operating system first inspects this cache to see if it has a stored answer. If the hostname is found in the cache, the computer can quickly return the corresponding IP address without needing to perform additional steps, such as querying a DNS server or utilizing other methods of resolution.

For context, if the hostname is not found in the resolver cache, the system would then proceed to the next step, which could involve querying the configured DNS server or other resolution methods. This ordered approach enhances efficiency and performance by reducing the need for network requests whenever possible.

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Petition the configured DNS server

Use hosts file for resolution

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