On which managed hosts is QRadar event data stored in the Ariel database?
QRadar event data is stored in the Ariel database on the Event Processor and any attached Data Nodes. The Event Processor is responsible for processing incoming events, performing correlation, and storing the event data. The attached Data Nodes provide additional storage capacity and can be used to extend the storage available to the Event Processor.
Reference IBM QRadar SIEM V7.5 Administration documentation.
You are using the command line interface (CLI) and need to fix a storage issue. What command do you use to verify disk usage levels?
To verify disk usage levels in a Linux environment, the df -h command is used. This command provides an overview of the disk space usage, displaying the available and used space in a human-readable format.
Open the terminal or CLI on the system.
Type df -h and press Enter.
Review the output, which will show the filesystem, size, used space, available space, and usage percentage for all mounted filesystems.
Reference IBM QRadar SIEM V7.5 Administration documentation.
Which command in QRadar allows you to run a specific command inside of a specific container, when given an app ID. or a combination of workload, service, and container?
The recon connect command in IBM QRadar SIEM V7.5 allows administrators to run a specific command inside a specific container, given an app ID or a combination of workload, service, and container. Here's how it works:
Command: recon connect
Function: This command connects to a specified container and allows the execution of commands within that container.
Usage: Administrators use this command to manage and troubleshoot applications running in isolated environments (containers) within QRadar.
Reference The QRadar administration and support guides detail the usage of the recon connect command for managing containerized applications.
Which two (2) data sources can be assigned to a domain in the Domain Management function?
In the Domain Management function of IBM QRadar SIEM, two key data sources that can be assigned to a domain are Flow Collectors and Log Sources. Flow collectors capture and analyze network flow data, while log sources refer to various devices and applications that send log data to QRadar for analysis. By assigning these data sources to a domain, administrators can segment and manage the data more effectively, ensuring that the correct flow and log data are processed and analyzed within the designated domain. This segmentation enhances security and performance by isolating data handling according to domain-specific policies.
Reference QRadar SIEM V7.5 Administration Guide - Chapter on Domain Management and Data Source Assignment
Which field is mandatory when you use the DSM Editor to map an event to a OID?
When using the DSM (Device Support Module) Editor in IBM QRadar to map an event to an OID (Object Identifier), the Event ID field is mandatory. The Event ID uniquely identifies the event within QRadar and is essential for ensuring that the correct event data is associated with the appropriate OID. This mapping process allows QRadar to properly categorize and handle events based on their unique identifiers.
Reference QRadar SIEM V7.5 Administration Guide - Chapter on DSM Editor and Event Mapping
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