# Assessment 4 #### What is the purpose of checking the checksum or message digest? * [x] To minimize the risk the file has malware embedded in it * [ ] To speed up the download process * [ ] To verify the file size * [ ] To check the file format **Notes to Learners** Before running the .iso file, Bob checks the website for a checksum or message digest corresponding to the version of the file he downloaded, and he finds the following listed. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://hub.bsvblockchain.org/higher-learning/bsv-academy/hash-functions-crash-course/assessment-4.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.