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IBM C1000-156 Exam Questions
- IBM Certified Administrator Certifications
- IBM Security QRadar SIEM V7.5 Certifications
- Topic 1: System Configuration: This topic discusses license management, administration of managed hosts, distributed architecture, data backups, and email templates.
- Topic 2: Performance Optimization: It focuses on index management, search management, routing rules, event forwarding, and dealing with resource restrictions.
- Topic 3: Data Source Configuration: The topic delves into flow sources, log sources, data obfuscation, custom log source types, custom events, and flow properties.
- Topic 4: Accuracy Tuning: This topic addresses sub-topics of Anomaly Detection Engine rules, building blocks, content packs, and integrations.
- Topic 5: User Management: It covers the management of users, security profiles of users, user roles, and user authentication.
- Topic 6: Reporting, Searching, and Offense Management: This topic discusses the management of reports, the management of offenses, and the utilization of different search types.
- Topic 7: Tenants and Domains: It discusses the management of domains and tenants, allocation of licenses for multi-tenant, and assigning users to tenants.
- Topic 8: Troubleshooting: This topic focuses on common documented issues, healthchecks, GUI REST-API usage, and responding to system notifications.
Free IBM C1000-156 Exam Actual Questions
Note: Premium Questions for C1000-156 were last updated On Jul. 02, 2025 (see below)
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.
An administrator receives a file with all the vital assets in the company and wants to import this file into QRadar. How must this import file be formatted?
When importing vital asset information into IBM QRadar SIEM V7.5, the import file must be formatted as a CSV file with the following structure:
Format: CSV (Comma-Separated Values)
Fields: The required fields are IP address, Name, Weight, and Description.
IP address: The IP address of the asset.
Name: The name of the asset.
Weight: A numerical value representing the importance or criticality of the asset.
Description: A brief description of the asset.
This format ensures that QRadar can correctly parse and import the asset information, integrating it into its asset database for further analysis and correlation.
Reference IBM QRadar SIEM documentation provides guidelines on the required CSV format for importing asset information, detailing the necessary fields and their order.
How can you configure a log source to provide events to different domains?
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.
What is the main reason for tuning a building block?
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.
Reference IBM QRadar SIEM administration guides and best practice documents emphasize the importance of tuning to minimize false positives, ensuring more actionable alerts.
When creating an identity exclusion search, what time range do you select?
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.
Reference The 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.
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