In the same URL, which segment is the subdomain?

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Multiple Choice

In the same URL, which segment is the subdomain?

Explanation:
In a URL, the subdomain is the label that comes before the main domain in the host portion. For a URL like https://www.yourwebservice.com/, the host is www.yourwebservice.com. The leftmost label, www, is the subdomain, followed by the main domain yourwebservice and the top-level domain com. The protocol https:// is the scheme, not a subdomain, and 80 would be a port number if present, not a subdomain. So the subdomain here is www.

In a URL, the subdomain is the label that comes before the main domain in the host portion. For a URL like https://www.yourwebservice.com/, the host is www.yourwebservice.com. The leftmost label, www, is the subdomain, followed by the main domain yourwebservice and the top-level domain com. The protocol https:// is the scheme, not a subdomain, and 80 would be a port number if present, not a subdomain. So the subdomain here is www.

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