Free Practice Questions for IBM C1000-156 Exam

To quickly check the disk space for all managed hosts in IBM QRadar SIEM V7.5, the administrator uses the following command:

Command:/opt/qradar/support/all_servers.sh -C -k 'df -Th'

Function: This command checks the disk space across all managed hosts, providing detailed information about the filesystem types and disk usage.

Parameters:

-C: Executes the command on all managed hosts.

-k: Keeps the output in a human-readable format.

'df -Th': The specific command to display the disk space usage in a tabular format with human-readable file sizes.

ReferencesThe IBM QRadar SIEM documentation provides a comprehensive list of commands for system administration, including those for checking disk space on managed hosts.

When exporting a list of events to a CSV file in IBM QRadar SIEM V7.5, the default columns included in the search result typically are:

Log Source: The origin of the log data.

Event Count: The number of events.

High Level Category: The broad classification of the event.

Related Offense: The associated offense ID or description.

These columns provide a comprehensive overview of the events, helping analysts quickly understand the context and significance of the data.

ReferencesIBM QRadar SIEM documentation provides details on the default columns included in search results and their significance in event analysis.

In IBM QRadar SIEM V7.5, the default setting for generating weekly reports is configured to occur on:

Day: Sunday

Time: 01:00 AM

This setting ensures that the reports are generated during a typical low-activity period, minimizing the impact on system performance and ensuring that the latest data from the previous week is included.

ReferencesThe default configuration for report generation times is specified in the IBM QRadar SIEM V7.5 administration and user documentation.

In QRadar SIEM V7.5, the number of vulnerability processors is limited to 1.

These vulnerability processors are responsible for handling and processing vulnerability data within the system.

Having multiple vulnerability processors is not supported in this version of QRadar.

References:

IBM QRadar SIEM V7.5 Administration documentation.

Before configuring a WinCollect log source in QRadar, the administrator must ensure that specific network ports are open to facilitate communication. The required ports are:

Port 514: This is the default port for syslog, a standard protocol used to send system log or event messages to a specific server. WinCollect uses this port to send logs from Windows machines to the QRadar server.

Port 8413: This port is used for communication between the WinCollect agent and the QRadar Console. It is necessary for managing the WinCollect agent and ensuring proper data transmission.

Ensuring these ports are open is crucial for the seamless operation and integration of WinCollect with QRadar, allowing the secure and efficient collection of log data from Windows environments.

ReferencesIBM Security QRadar SIEM and IBM Security QRadar EDR integration.pdf​

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.

ReferencesQRadar SIEM V7.5 Administration Guide - Chapter on Domain Management and Data Source Assignment

When adjusting a custom email template in IBM QRadar SIEM V7.5, the two elements that need to be edited to include customizations are:

<subject>: This element defines the subject line of the email, which can be customized to provide a clear and relevant description of the email's content.

<body>: This element contains the main content of the email. Customizing the body allows administrators to include specific information, formatting, and messages relevant to the recipient.

Customizing these elements ensures that the email notifications are informative and tailored to the needs of the recipients.

ReferencesThe QRadar SIEM user and configuration guides provide instructions on customizing email templates, highlighting the<subject>and<body>elements as key areas for customization.

The primary method used by IBM QRadar to install and manage applications created using the GUI Application Framework Software Development Kit (SDK) is through the REST API interface:

API Endpoint:/api/gui_app_framework

Functionality: This endpoint allows administrators to manage the lifecycle of applications, including installation, updates, and removal.

Integration: Provides seamless integration with the GUI Application Framework, enabling the development and deployment of custom applications within QRadar.

ReferencesThe IBM QRadar API documentation provides details on the/api/gui_app_frameworkendpoint and its usage for managing GUI applications.

When creating an identity exclusion search in IBM QRadar SIEM V7.5, the time range selected is "Real time (streaming)." This setting ensures that the search continuously monitors and excludes identities in real-time as data is ingested. Here’s the process:

Real-time Monitoring: Continuously updates the search results based on incoming data, providing immediate exclusion of specified identities.

Streaming Data: Processes data in a live stream, ensuring that the exclusion criteria are applied instantaneously as new events occur.

ReferencesThe setup and configuration of identity exclusion searches are detailed in the QRadar SIEM administration guides, highlighting the importance of real-time streaming for effective identity management.