GIAC Foundational Cybersecurity Technologies Practice Test

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Which of the following describes the purpose of the X-Frame Options header?

To control the caching of web pages
To prevent the embedding of the site in frames
To secure user passwords during transmission
To limit cross-site scripting vulnerabilities

The correct answer is: To prevent the embedding of the site in frames

The purpose of the X-Frame Options header is to prevent the embedding of web pages in frames, which is a key security measure against clickjacking attacks. Clickjacking is a malicious technique where a user is tricked into clicking on something different from what the user perceives, potentially revealing confidential information or allowing other harmful actions to occur without the user's consent. By using the X-Frame Options header, a web application can specify whether and how content can be embedded into frames, thereby providing an essential layer of protection for users and maintaining the integrity of web content. The other options, while addressing important web security aspects, do not align with the specific function of the X-Frame Options header. Caching controls are managed through different headers such as Cache-Control. Password security during transmission pertains primarily to protocols like HTTPS rather than frame embedding. Lastly, limiting cross-site scripting vulnerabilities involves separate mitigation strategies that are not addressed by the X-Frame Options header.