IBM Certified Administrator - Security QRadar SIEM V7.5

A QRadar SIEM administrator keeps IBM's security information and event management platform collecting, parsing and correlating data correctly, so that analysts see real offenses instead of noise. The role sits between infrastructure and the security operations centre, and IBM certifies it with the IBM Certified Administrator - Security QRadar SIEM V7.5 credential.

IBM examines that credential as C1000-156: 62 questions in 90 minutes, with a passing score of 61%, at a fee of US$200 as of October 2026. This guide explains what the job involves day to day, which skills hiring managers look for, what each of the eight syllabus sections tests, and how to build a preparation plan around a working lab.

What does a QRadar SIEM administrator actually do each week?

Most of the week goes on data quality. A SIEM is only as useful as the events it receives, so the administrator spends hours confirming that firewalls, domain controllers, endpoint agents, cloud services and network devices are all sending logs, that QRadar recognises each source with the right Device Support Module (DSM), and that the fields analysts depend on, such as user name, source IP and destination port, are parsed rather than left inside the raw payload.