A technician with a Windows server would like to use Windows Software Update Services (WSUS) to deploy patches. Which of the following MUST the technician assign to the server to install WSUS?

DHCP (Dynamic Host Configuration Protocol) assigns IP addresses to network clients and is not a direct requirement for WSUS software installation.

IMAP (Internet Message Access Protocol) is used for retrieving emails and has no functional relevance to WSUS operations.

DNS (Domain Name System) is essential for network name resolution, which WSUS utilizes, but it is not a server role that must be *assigned to the WSUS server itself* as a direct installation prerequisite like IIS.

Windows Server Update Services (WSUS) relies on Internet Information Services (IIS) as a mandatory prerequisite. WSUS uses IIS to host the update files and metadata, which allows client computers to connect to the WSUS server via HTTP or HTTPS to download updates and report their installation status.