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Get All IBM Security QRadar SIEM V7.5 Administration Exam Questions with Validated Answers
| Vendor: | IBM |
|---|---|
| Exam Code: | C1000-156 |
| Exam Name: | IBM Security QRadar SIEM V7.5 Administration |
| Exam Questions: | 62 |
| Last Updated: | March 4, 2026 |
| Related Certifications: | IBM Certified Administrator, Security QRadar SIEM V7.5 |
| Exam Tags: | Intermediate Level IBM Security Operations Center (SOC) administratorsSIEM managers |
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Which is a valid routing rule combination?
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.
Which authentication type in QRadar encrypts the username and password and forwards the username and password to the external server for authentication?
TACACS (Terminal Access Controller Access-Control System) authentication is a protocol used in IBM QRadar SIEM V7.5 for authenticating users by forwarding their credentials to an external server. Here's how it works:
Encryption: TACACS encrypts the entire payload of the authentication packet, including the username and password, ensuring secure transmission.
Forwarding Credentials: After encryption, the credentials are forwarded to an external TACACS server, which performs the actual authentication.
Authentication Process: The external server checks the credentials against its database and sends a response back to QRadar indicating whether the authentication is successful or not.
Reference IBM QRadar SIEM documentation explains TACACS authentication in detail, highlighting its secure encryption and external server verification process.
What is the most restrictive permissions a user needs in order to see all of the events from a particular log source in the Log Activity tab?
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.
Reference IBM Security QRadar SIEM and IBM Security QRadar EDR integration.pdf
To detect outliers, which Anomaly Detection Engine rule tests events or flows for volume changes that occur in regular patterns?
In IBM QRadar SIEM V7.5, Anomaly Detection Engine rules that test events or flows for volume changes occurring in regular patterns are known as Anomaly Rules. Here's how they function:
Detection: Anomaly rules are designed to identify deviations from normal behavior by analyzing patterns in the data.
Volume Changes: These rules specifically look for unusual increases or decreases in event or flow volumes that might indicate potential security incidents.
Regular Patterns: By understanding regular patterns in network traffic and event logs, anomaly rules can highlight significant outliers that warrant further investigation.
Reference The functionality and configuration of anomaly rules are covered extensively in the IBM QRadar SIEM administration guide, providing administrators with the tools to effectively detect and respond to abnormal network activities.
In a single domain QRadar deployment, which IP addresses are considered local?
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.
Reference IBM Security QRadar SIEM and IBM Security QRadar EDR integration.pdf
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