<!-- .slide: class="content small-font" --> ## Review * VQL is the engine behind Velociraptor! * This module covered the language in great details * We learned about the difference between VQL plugins and functions. * We understood how the scope is used between the different VQL query clauses * We learned about stored queries as a way of pre-compiling a query to be accessed on demand later. --- <!-- .slide: class="content small-font" --> ## Review * We saw how VQL is lazy and will perform the least amount of work necessary to evaluate the query * We can use this property to control query cost and side effects. * We learned about some of the most useful VQL plugins (foreach(), switch(), if()) * We learned about event queries and how to use asynchronous VQL queries.