Certified Ethical Hacker (CEH) Practice Exam 2025 - Free CEH Practice Questions and Study Guide

The 'index of' operator in a Google search is used to display pages that have directory browsing enabled, which allows users to see a list of files and directories within a specific web server directory. When this operator is utilized, it typically reveals folder structures on web servers that do not have index files (like index.html or index.php) to display content normally. As a result, it can expose files that are otherwise not intended to be publicly visible.

The first choice accurately reflects the functionality of the 'index of' query, specifically targeting its ability to find web pages that allow directory listing, thus making it beneficial for users seeking to discover available files in an open directory.

The other options, while they touch on important aspects of web searching and security, do not align with the primary function of the 'index of' operator. For instance, finding indexed pages of specific file types refers more closely to file-type-specific search queries, not the broader implications of directory listing. Searching for cached content pertains to Google’s ability to show previously stored versions of a webpage, and finding vulnerable servers is generally associated with security assessments rather than a simple search query format.

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