Most Recent IBM C1000-156 Exam Questions & Answers

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.

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.

Reference IBM 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.

The Server Discovery function in IBM QRadar SIEM V7.5 uses the Asset Profile Database to discover various types of servers on a network. This database stores detailed information about the assets, including server types, configurations, and roles within the network. Here's how it works:

Asset Profile Database: This is the central repository that contains all the discovered asset information.

Discovery Process: During the discovery process, QRadar scans the network to identify servers and other devices, collecting information such as IP addresses, open ports, services, and operating systems.

Classification: The collected data is then analyzed and classified, updating the Asset Profile Database with the types of servers discovered.

Reference IBM QRadar SIEM documentation specifies the use of the Asset Profile Database for server discovery functionalities and provides details on configuring and managing asset profiles.

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.

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.

Reference IBM Security QRadar SIEM and IBM Security QRadar EDR integration.pdf