Who sets first-party cookies and for what scope are they used?

• A. External advertisers
• B. Website owner
• C. Search engines
• D. Government agencies

Answer: (B)

First-party cookies are placed by the website you are visiting—the domain in your address bar. The website owner uses them to remember information as you browse that site, such as whether you’re logged in, your language or region, site preferences, or items in your shopping cart. The scope is limited to that site (and it can cover its subdomains), meaning the cookie is sent with requests to that same domain and isn’t shared with other sites. This is different from third-party cookies, which are set by external domains (like advertisers) to track you across sites. So the correct idea is that the website owner sets these cookies for use within that site.