Which of the following tools are used for enumeration? (Choose three.)

SolarWinds is primarily a network monitoring and management platform used for infrastructure oversight, not for enumerating Windows account and SID information.

USER2SID, SID2USER, and DumpSec are all enumeration tools targeting Windows security information. USER2SID resolves a username to its Security Identifier (SID), SID2USER performs the reverse lookup from SID to username, and DumpSec extracts users, groups, shares, and policies from remote Windows hosts - together they are used by attackers to enumerate account structures and permissions on target systems.

Cheops is a network topology discovery and mapping tool used to visualize network infrastructure, not to enumerate Windows user accounts or security identifiers.