A QRadar analyst wants to limit the time period for which an AOL query is evaluated. Which functions and clauses could be used for this?

AQL (Ariel Query Language) provides specific clauses and functions to define the time frame for a query. The START and STOP clauses are used to specify an absolute time range. The LAST clause defines a time range relative to the current time (e.g., LAST 24 HOURS). The NOW() function returns the current timestamp of the QRadar console, and PARSEDATETIME() converts a formatted time string into a timestamp. These are all valid components for limiting the time period of an AQL query.

A. The BETWEEN clause is not a valid AQL clause for specifying a time frame; START and STOP are used instead.
C. The BETWEEN and FIRST clauses are not valid AQL clauses for specifying a time frame.
D. The BETWEEN clause is not a valid AQL clause for specifying a time frame in this context.

1. IBM QRadar Ariel Query Language (AQL) Guide (Version 7.5.0). (2022). In IBM Documentation. Section: "Time frame clauses", page 11. This section explicitly lists START, STOP, and LAST as the clauses for defining a query's time frame.

2. IBM QRadar Ariel Query Language (AQL) Guide (Version 7.5.0). (2022). In IBM Documentation. Section: "Time functions", page 21. This section details the usage of NOW() and PARSEDATETIME('time string').