IBM C1000-156 Exam Actual Questions

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.

Administrators can configure a rule response in QRadar to add event data to a reference set by using the 'add to reference set' rule response. This is a predefined response action in QRadar that allows specific event data to be added to a reference set when the rule conditions are met.

Navigate to the 'Offenses' tab in the QRadar console.

Select 'Rules' from the navigation pane.

Create a new rule or edit an existing rule.

In the 'Rule Response' section, add a new response.

Select the 'Add to Reference Set' response.

Specify the reference set and the data to be added.

Save and deploy the rule.

Reference IBM QRadar SIEM V7.5 Administration documentation

In IBM QRadar SIEM, domain assignments take precedence over the settings of other elements from a security profile, specifically Permission Precedence, Networks, and Log Sources tabs. This hierarchical precedence ensures that the domain settings are enforced across different security configurations. The domain settings effectively override other configurations to maintain consistency and security across the environment. This structure helps in managing access and permissions more effectively by ensuring that the domain-level policies are the primary controlling factor.

Reference QRadar SIEM V7.5 Administration Guide - Chapter on Domain Management and Security Profiles

When the error 'Insufficient disk space to complete data export request' is encountered, and the Export Directory property in the System Settings has the default configuration, the disk partition that needs to be checked is /store/ariel/events/exports. This directory is typically used for exporting event data in QRadar SIEM. The error indicates that the available disk space in this partition is insufficient to handle the export operation. Administrators should check the storage usage of this partition and manage the space by either cleaning up unnecessary files or expanding the storage capacity.

Reference QRadar SIEM V7.5 Administration Guide - Chapter on System Notifications and Disk Management

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