[Nov-2024] C1000-156 Exam Dumps Pass with Updated 2024 IBM Security QRadar SIEM V7.5 Administration [Q35-Q55]

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[Nov-2024] C1000-156 Exam Dumps Pass with Updated 2024 IBM Security QRadar SIEM V7.5 Administration

Free C1000-156 Exam Dumps to Pass Exam Easily


IBM C1000-156 Exam is intended for IT professionals who have experience with QRadar and are responsible for administering the platform on a daily basis. This includes security analysts, system administrators, and network administrators who are responsible for maintaining the security of their organization's IT infrastructure. IBM Security QRadar SIEM V7.5 Administration certification exam is designed to validate the skills and knowledge required to successfully administer IBM Security QRadar SIEM V7.5.

 

NEW QUESTION # 35
What occurs when QRadar reaches the events per second (EPS) or flows per minute (FPM) shared license pool limits?

  • A. Incremental Licensing removes the limits on EPS and FPM.
  • B. Events and flows continue to process, and the Network and Log Activity tabs remain active.
  • C. Data accumulates in a temporary burst handing queue, but QRadar continues to process events and flows.
  • D. QRadar generates a notification that the limit was reached and stops processing.

Answer: C

Explanation:
When IBM QRadar SIEM V7.5 reaches the events per second (EPS) or flows per minute (FPM) shared license pool limits, the following occurs:
Burst Handling Queue: QRadar utilizes a temporary burst handling queue to manage the overflow of events and flows. This queue temporarily holds data until the system can process it.
Continued Processing: QRadar continues to process events and flows despite reaching the license limits, ensuring no data is lost.
Efficiency: This mechanism allows QRadar to handle short-term spikes in data volume without compromising the integrity or continuity of event and flow processing.
Reference
The handling of EPS and FPM limits is described in IBM QRadar SIEM's system administration and configuration guides, which explain how QRadar manages data when license thresholds are exceeded.


NEW QUESTION # 36
To detect outliers, which Anomaly Detection Engine rule tests events or flows for volume changes that occur in regular patterns?

  • A. Threshold rules
  • B. Building block rules
  • C. Anomaly rules
  • D. Behavioral rules

Answer: C

Explanation:
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.


NEW QUESTION # 37
Which command can a QRadar administrator use to connect to the QRadar app container?

  • A. recon ps <app id>
  • B. app connect <app id>
  • C. yum info <app id>
  • D. recon connect <app id>

Answer: D

Explanation:
A QRadar administrator can use the recon connect <app id> command to connect to the QRadar app container. Here is a detailed explanation:
App Container Connection: QRadar applications run in isolated containers. Administrators may need to connect to these containers for troubleshooting, management, or configuration purposes.
Recon Command: The recon command-line tool is used for managing and interacting with application containers in QRadar.
Connect Command: The specific command recon connect <app id> allows the administrator to initiate a connection to the specified application container. <app id> should be replaced with the actual application ID.
Usage: This command is typically used when an administrator needs to access the container's environment to perform tasks such as checking logs, modifying configurations, or diagnosing issues.
This command facilitates direct access to the application container, enabling efficient management and troubleshooting.
Reference
IBM Security QRadar SIEM and IBM Security QRadar EDR integration.pdf


NEW QUESTION # 38
You want to use a quick filter search to look for certain elements:
. 10.100.100.*
* BlueCoat
* TCP_REFRESH_MIS
Which string provides the correct results?

  • A. 10.100.100.*%Bluecoat%TCP_REFRESH_MIS
  • B. (10.100.100.- Bluecoat TCP_REFRESH_MIS)
  • C. (10.100.100/ AND Bluecoat AND TCP_REFRESH_MIS)
  • D. "10.100.100.*%AND%Bluecoat%AND%TCP_REFRESH_MIS"

Answer: D

Explanation:
In IBM QRadar SIEM V7.5, using a quick filter search requires the correct syntax to find specific elements within the event logs. The correct string to search for the elements 10.100.100.*, Bluecoat, and TCP_REFRESH_MIS is:
String Structure: "10.100.100.*%AND%Bluecoat%AND%TCP_REFRESH_MIS"
Elements: This string combines the IP address pattern, device type, and specific event message using %AND% to ensure that all three elements are included in the search results.
Quotation Marks: The quotation marks are necessary to group the search terms and ensure that the search engine interprets them correctly.
Reference
IBM QRadar SIEM search documentation provides guidelines on using quick filter searches and the correct syntax for combining multiple search terms.


NEW QUESTION # 39
What is the default day and time setting for when QRadar generates weekly reports?

  • A. Monday 02:00 AM
  • B. Sunday 01:00 AM
  • C. Sunday 02:00 AM
  • D. Monday 01:00 AM

Answer: B

Explanation:
In IBM QRadar SIEM V7.5, the default setting for generating weekly reports is configured to occur on:
Day: Sunday
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.
Reference
The default configuration for report generation times is specified in the IBM QRadar SIEM V7.5 administration and user documentation.


NEW QUESTION # 40
Which is a valid statement about the process of restoring a backup archive?

  • A. When restoring all configuration items included in the backup archive, only configuration information, offense data, and asset data are restored.
  • B. A backup archive can only be restored for the same software version, including fix pack versions.
  • C. A configuration restore must be performed on a console where the IP address matches the IP address of a managed host in the backup.
  • D. A restoration might fail if you restore the configuration backup before the data backup.

Answer: B

Explanation:
When restoring a backup archive in QRadar, it is essential to ensure that the software version matches exactly. This includes both the base version and any fix pack versions.
Attempting to restore a backup archive from a different software version can lead to compatibility issues, data corruption, and system instability.
Always verify that the backup archive corresponds to the same QRadar version before initiating the restoration process.
Reference:
IBM QRadar SIEM V7.5 Administration documentation.


NEW QUESTION # 41
Which event advanced search query will check an IP address against the Spam X-Force category with a confidence greater than 3?

  • A. select * from flows where XF0RCE_iP_C0NFiDEKCE{*Malware',sourceip)-3
  • B. select * from events where XFORCE_IP_CONFIDENCE( 'Spam', sourceip>>3
  • C. select * from flows where XFORCE_IP_CONFIDENCE{'Spam', sourceip)<3
  • D. select * from events where XF0RCE_IP_C0NFIDENCE('Malware',sourceip)>3

Answer: D

Explanation:
To check an IP address against the Spam X-Force category with a confidence greater than 3 using an advanced search query in QRadar, the correct query format is:
Query Structure: select * from events where XF0RCE_IP_C0NFIDENCE('Malware',sourceip)>3 Components:
select * from events: This part of the query selects all events from the QRadar events database.
where XF0RCE_IP_C0NFIDENCE('Malware',sourceip)>3: This filter checks if the source IP address has a confidence level greater than 3 for being associated with malware according to the X-Force category.
This query is designed to filter out and display events where the source IP is identified with high confidence as being associated with malicious activity.
Reference
The syntax and usage of advanced search queries are detailed in the IBM QRadar SIEM search and analytics guides, providing specific examples for utilizing X-Force threat intelligence data.


NEW QUESTION # 42
How can you configure a log source to provide events to different domains?

  • A. Use custom properties to assign events from a single log source to different domains.
  • B. Use the Assistant app to update the domain information for the log source.
  • C. Use the Use Case Manager app to update building blocks to support multi domain events.
  • D. Create a saved search on the Network Activity tab to view events in specific domains.

Answer: A

Explanation:
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.
Reference
The 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.


NEW QUESTION # 43
You analyzed network flows and decided that you want to track any network bandwidth violations by any application that comes from your network source. You want to report on all applications that create traffic and the amount of data (total bytes) from each IP. You want to store the IP address, the application, and the amount of data in the reference data collection.
What type of reference data collection must you create to support this use case?

  • A. Reference map of sets
  • B. Reference map of maps
  • C. Reference set
  • D. Reference map

Answer: D

Explanation:
To track network bandwidth violations by any application coming from your network source and report on all applications that create traffic along with the amount of data from each IP address, you need to store the IP address, the application, and the amount of data in a reference data collection. The appropriate type of reference data collection for this use case is a "Reference map." Here is why:
Reference Map: A reference map allows you to store key-value pairs where each key is unique. In this context, the key can be the combination of the IP address and the application, and the value can be the amount of data (total bytes).
Data Structure: This structure enables efficient lookups and updates, which is ideal for tracking and reporting bandwidth usage per application per IP address.
Use Case Suitability: The reference map is suitable for scenarios where you need to store and retrieve values based on a specific key, and it supports storing complex data structures efficiently.
This type of reference data collection supports the use case by allowing the storage and retrieval of detailed network traffic information per application and IP address.
Reference
IBM Security QRadar SIEM and IBM Security QRadar EDR integration.pdf


NEW QUESTION # 44
Before configuring a WinCollect log source, which two ports does a QRadar administrator ensure are open?

  • A. 445 and 8413
  • B. 8080 and 8413
  • C. 443 and 8413
  • D. 514 and 8413

Answer: D


NEW QUESTION # 45
On which managed hosts is QRadar event data stored in the Ariel database?

  • A. On the Event Collector and attached Data Node
  • B. On the Data Gateway and attached Data Node
  • C. On the App Host and attached Data Node
  • D. On the Event Processor and attached Data Node

Answer: D

Explanation:
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.


NEW QUESTION # 46
What is the primary method used by QRadar to alert users to problems?

  • A. System Notifications
  • B. System Summary
  • C. QRadar Assistant
  • D. Use Case Manager

Answer: A

Explanation:
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.
Reference
IBM QRadar SIEM documentation outlines the use of System Notifications as the primary method for alerting users to issues, detailing how to configure and manage these alerts.


NEW QUESTION # 47
An administrator wants to export a list of events to a CSV file. Which items are in the default columns of the search result?

  • A. Username. Source Port. Event Count, Magnitude
  • B. Log Source. Event Count. High Level Category. Related Offense
  • C. Protocol. Storage Time, Destination Port, Source Port
  • D. Event Name. Application, Username, Log Source

Answer: B

Explanation:
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.
Reference
IBM QRadar SIEM documentation provides details on the default columns included in search results and their significance in event analysis.


NEW QUESTION # 48
When will events or flows stop contributing to an offense?

  • A. When the offense becomes dormant
  • B. When the offense becomes inactive
  • C. After the offense is assigned to an analyst
  • D. When you protect the offense

Answer: A

Explanation:
In IBM QRadar SIEM V7.5, events or flows stop contributing to an offense when the offense becomes dormant. Here's how it works:
Dormant Offense: An offense becomes dormant when there is no new activity contributing to it for a specified period. This indicates that the threat or incident has not had any further related events or flows.
Contribution Stoppage: Once an offense is marked as dormant, no additional events or flows are added to it, which helps in managing the offense lifecycle and resources within QRadar.
This behavior helps in distinguishing between active and inactive threats, allowing security analysts to focus on ongoing incidents.
Reference
The QRadar SIEM administration and user guides provide detailed explanations of offense management, including the conditions under which offenses become dormant and how this affects event and flow contributions.


NEW QUESTION # 49
In which QRadar section can the administrator view the license giveback rate?

  • A. Admin tab > system settings
  • B. Log Activity tab by searching for the term "giveback" in the Quick Filter
  • C. Log Activity tab > AQL query in the Advanced Search "select LicenseGiveback from license"
  • D. Admin tab > License pool management

Answer: D

Explanation:
In IBM QRadar SIEM V7.5, the license giveback rate can be viewed in the License Pool Management section. Here's the step-by-step process:
Access Admin Tab: The administrator needs to navigate to the Admin tab in the QRadar GUI.
License Pool Management: Under the Admin tab, there is an option for License Pool Management.
View License Giveback Rate: Within the License Pool Management section, the administrator can view details about license usage, including the giveback rate.
Reference
The QRadar SIEM administration guide provides detailed steps on accessing and managing license information, including the giveback rate, under the Admin tab.


NEW QUESTION # 50
An administrator is evaluating domain criteria based on an event. The result of a regular expression that was defined in a custom property does not match a domain mapping, and the event was automatically assigned to the default domain.
What is the order of precedence if the event does not match the domain definition for custom properties?

  • A. Log source, Log source group, Event collector or data gateway, DDS
  • B. DLC. Log source, Log source group, Event collector or data gateway
  • C. Log source. Log source group, App Hosts
  • D. DLS, Log source, Event collector or data gateway. Log source group

Answer: A

Explanation:
In QRadar, when evaluating domain criteria based on an event, the precedence order for domain assignment if the event does not match the domain definition for custom properties is as follows:
Log Source: The first criterion checked is the log source. Each event is associated with a log source, and the domain is determined based on this source.
Log Source Group: If the log source does not provide a domain match, the next criterion is the log source group. Log sources can be grouped together, and domain definitions can be applied at the group level.
Event Collector or Data Gateway: If neither the log source nor the log source group provides a match, QRadar checks the event collector or data gateway for a domain definition.
DDS (Data Domain Service): As the final step, if no other criteria match, the DDS is used to assign the default domain.
This order of precedence ensures that the most specific criteria are checked first before falling back to more general criteria, ensuring accurate domain assignment for events.
Reference
IBM Security QRadar SIEM and IBM Security QRadar EDR integration.pdf


NEW QUESTION # 51
Domain assignments lake precedence over the settings of which other elements from a security profile?

  • A. Permission Precedence, and Log Sources tabs
  • B. Security profiles. Networks, and Domains
  • C. Security profiles, Networks, and Log Sources tabs
  • D. Permission Precedence. Networks, and Log Sources tabs

Answer: D

Explanation:
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


NEW QUESTION # 52
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?

  • A. df -h
  • B. du -h
  • C. Is -laF
  • D. lsof -h

Answer: A

Explanation:
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.


NEW QUESTION # 53
Which three (3) resource restriction types are available in QRadar?

  • A. Service-based restrictions
  • B. Event-based restrictions
  • C. Role-based restrictions
  • D. Tenant-based restrictions
  • E. User-based restrictions
  • F. Domain-based restrictions

Answer: C,D,F

Explanation:
IBM QRadar SIEM V7.5 provides several types of resource restriction mechanisms to manage access control and data visibility. The three main types are:
Role-based restrictions: These restrictions limit what actions users can perform based on their assigned roles. Each role has specific permissions that dictate access to different functionalities and data within QRadar.
Tenant-based restrictions: This type of restriction is used in multi-tenant environments, where different tenants (organizational units) need to have isolated views and access to their data. Tenant-based restrictions ensure that users from one tenant cannot access data from another tenant.
Domain-based restrictions: Domains in QRadar are used to segment data logically. Domain-based restrictions control which data is visible to users based on the domains they have been granted access to.
These restriction types ensure that access control is granular and adheres to organizational security policies.
Reference
IBM QRadar SIEM documentation outlines the use of role-based, tenant-based, and domain-based restrictions for managing access control and data visibility.


NEW QUESTION # 54
Which authentication type in QRadar encrypts the username and password and forwards the username and password to the external server for authentication?

  • A. Two-factor authentication
  • B. System authentication
  • C. TACACS authentication
  • D. RADIUS authentication

Answer: C

Explanation:
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.


NEW QUESTION # 55
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