C1000-156 IBM Security QRadar SIEM V7.5 Administration Free Practice Exam Questions (2025 Updated)

To see all of the events from a particular log source in the Log Activity tab, a user must have the appropriate permissions set in their security profile. The most restrictive permissions needed are:

Security Profile Inclusion: The log source must be included in the user's security profile. This means the user must have explicit permission to access events from this log source.

Permissions to Networks and Log Sources: The user's security profile must also include permissions to both Networks and Log Sources. This ensures the user has the necessary access to view events related to the specified log source within the network context.

These permissions are crucial to control and restrict access, ensuring users can only view data they are authorized to see while maintaining security and privacy within the system.

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

When restoring backups of your apps in a QRadar environment, the system restores the last known good version of your apps' configuration, your application data, and any apps that were configured on an App Host. This comprehensive restoration process ensures that all critical components of your applications, including their configurations and data, are recovered to their previous states. This is crucial for maintaining the integrity and functionality of the applications after a restoration.

ReferencesQRadar SIEM V7.5 Administration Guide - Chapter on Backup and Restore Procedures

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.

ReferencesQRadar SIEM V7.5 Administration Guide - Chapter on DSM Editor and Event Mapping

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.

In a single domain QRadar deployment, the IP addresses considered local are those that are defined in the network hierarchy. Here is a detailed explanation:

Network Hierarchy: QRadar uses a network hierarchy to define and manage IP addresses within the organization. This hierarchy allows QRadar to understand which IP addresses are part of the internal network and which are external.

Defining Local IP Addresses: Any IP address that is specified within the network hierarchy is considered local. This includes all the subnets and IP ranges that are part of the internal network.

Purpose: By defining the network hierarchy, QRadar can effectively differentiate between internal (local) and external (non-local) traffic, enabling more accurate detection and correlation of security events.

This approach helps in identifying suspicious activities by comparing the source and destination of traffic against the defined internal network.

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

The Report wizard in IBM QRadar SIEM provides a structured approach to designing, scheduling, and generating reports. The three key elements used by the Report wizard to help you create a report are:

Content: This element involves selecting the specific data and metrics you want to include in the report. It can include various log sources, events, and other relevant security data.

Format: This element defines how the data will be presented in the report. It includes selecting the type of report (e.g., tabular, graphical) and the specific visualizations that will best represent the data.

Layout: This element refers to the overall structure and design of the report, including the arrangement of content and visual elements to ensure the report is easily readable and professionally formatted.

These elements together ensure that the reports generated are comprehensive, visually appealing, and tailored to the specific needs of the organization.

ReferencesIBM QRadar SIEM documentation

If the option "Include in my Dashboard" cannot be selected when creating a saved search in IBM QRadar SIEM V7.5, a possible reason is insufficient permissions. Here’s why:

Permissions: The user needs appropriate permissions to add saved searches to the dashboard.

Role-Based Access Control: QRadar uses role-based access control to manage user permissions. The user’s role must include the necessary privileges to modify dashboards.

Verification: Ensure that the user has the correct permissions assigned. This can be checked and adjusted in the user management settings.

ReferencesIBM QRadar SIEM administration guides explain the permissions required for various actions, including adding saved searches to dashboards, and how to configure user roles and permissions.

The primary method used by IBM QRadar SIEM V7.5 to alert users to problems is through System Notifications. Here’s how it works:

System Notifications: These are alerts generated by QRadar to inform users of various issues, such as system performance problems, license issues, or security incidents.

Visibility: Notifications are prominently displayed in the QRadar GUI, ensuring that administrators and users can quickly identify and respond to any problems.

Customization: Users can configure notification settings to receive alerts for specific types of issues, ensuring they stay informed about critical aspects of the system’s health and performance.

ReferencesIBM QRadar SIEM documentation outlines the use of System Notifications as theprimary method for alerting users to issues, detailing how to configure and manage these alerts.

Tuning a building block in IBM QRadar SIEM V7.5 is primarily aimed at reducing the number of false positives. This process involves adjusting the rules and logic within the building block to better differentiate between normal and suspicious activity. Here’s the detailed explanation:

False Positives: High numbers of false positives can overwhelm analysts and obscure genuine threats. Tuning helps in refining detection criteria to reduce these false alarms.

Rule Adjustments: Modifying the thresholds, conditions, and filters within the building block rules to ensure they more accurately reflect the environment’s typical behavior.

Improved Accuracy: Enhanced precision in detecting true security incidents, thus improving the overall effectiveness of the SIEM solution.

ReferencesIBM QRadar SIEM administration guides and best practice documents emphasize the importance of tuning to minimize false positives, ensuring more actionable alerts.

Therecon connectcommand 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.

ReferencesThe QRadar administration and support guides detail the usage of therecon connectcommand for managing containerized applications.

When upgrading the IBM QRadar SIEM environment to patch a vulnerability, the recommended order for upgrading managed hosts is:

Console: Start by upgrading the Console, which is the central management point of the QRadar deployment.

Remaining Hosts: After the Console has been upgraded, proceed to upgrade the other managed hosts, including Event Processors, Flow Processors, and Data Nodes.

This order ensures that the management and coordination functionalities provided by the Console are updated first, minimizing the risk of compatibility issues during the upgrade process.

ReferencesIBM QRadar SIEM upgrade guides specify that the Console should be upgraded first, followed by the remaining managed hosts, to ensure a smooth and coordinated upgrade process.

In IBM QRadar SIEM V7.5, to deobfuscate data, an administrator requires two critical components:

Private Key: This key is used to decrypt the data that was originally obfuscated. The private key must match the public key used during the obfuscation process.

Password for the Private Key: This password is necessary to unlock the private key, allowing the decryption process to proceed.

The process involves using the private key in conjunction with its password to reverse the obfuscation, ensuring that the data is securely accessed only by authorized personnel.

ReferencesThe requirement for the private key and its password for deobfuscating data is detailed in the IBM QRadar SIEM administration and security guides, ensuring that the process adheres to best practices for data security.

Forward: Data is forwarded to a specified destination. It is also stored in the database and processed by the Custom Rules Engine (CRE).

Drop: Data is dropped, meaning it is not stored in the database and is not processed by the CRE. If you select the “Drop” option, any events that match this rule are credited back 100% to the license.

Bypass Correlation: Data bypasses the CRE but is stored in the database. This option allows events to be used in analytic apps and for historical correlation runs. It’s useful when you want specific events to skip real-time rules.

Log Only (Exclude Analytics): Events are stored in the database and flagged as “Log Only.” They bypass the CRE and are not available for historical correlation. These events contribute to neither offenses nor real-time analytics.

Now, let’s look at the valid combinations:

Forward and Drop: Data is forwarded to a specified destination, but it is not stored in the database or processed by the CRE. Dropped events are credited back to the license.

Forward and Bypass Correlation: Data is forwarded to a destination and stored in the database, but CRE rules do not run on it. Useful for scenarios where you want events to bypass real-time rules but still be available for historical correlation.

Forward and Log Only (Exclude Analytics): Events are forwarded to a destination, stored as “Log Only,” and bypass the CRE. They are not available for historical correlation and are credited back to the license.

The default user role defined in QRadar is "QRadar Users". Here’s a detailed explanation:

User Roles in QRadar: QRadar has a role-based access control system to manage user permissions and access levels. This ensures that users can only access and perform actions within their assigned roles.

Default Role - QRadar Users: The "QRadar Users" role is the default role assigned to new users. This role typically includes basic permissions needed to access and use QRadar features without administrative privileges.

Permissions: Users with the "QRadar Users" role can view and analyze security data, but they might have limited access to configuration settings and administrative functions.

Assigning default roles helps streamline user management and ensures that new users have the necessary access to perform their tasks.

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

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.

ReferencesIBM QRadar SIEM V7.5 Administration documentation.

To configure a log source in IBM QRadar SIEM V7.5 to provide events to different domains, administrators can use custom properties. Here’s how it works:

Custom Properties: Create and configure custom properties to tag events with specific domain information.

Assigning Events: When events are ingested from a log source, these custom properties can be used to dynamically assign events to different domains based on predefined criteria.

Domain Management: This approach allows flexibility in managing and segregating data from a single log source across multiple domains, ensuring that each domain receives the relevant events.

ReferencesThe configuration of custom properties for domain assignment is detailed in the QRadar SIEM administration guides, providing step-by-step instructions for setting up and using custom properties for domain management.