IBM C1000-162 Exam With Confidence Using Practice Dumps

Challenges in Search Performance: When dealing with large volumes of data in QRadar, searches can become slow if the data is not indexed properly. To improve search performance, specific property types can be utilized.

Property Types Overview:

Tabled Properties: Refer to data stored in tabular format but do not inherently improve search performance.

Indexed Properties: Properties that have an index created for them, significantly speeding up search operations by allowing quick lookups.

Stored Properties: Simply refers to properties that are stored but not necessarily indexed.

Common Properties: General properties used across various rules and searches but do not improve search performance specifically.

Importance of Indexed Properties: Indexed properties are specifically designed to enhance search performance by creating an index that allows QRadar to quickly locate the data without scanning the entire dataset.

Reference Confirmation: According to IBM QRadar documentation, using indexed properties is the recommended approach to reduce data volume searched and to shorten search times, making them the best choice for improving search performance.

References:

IBM QRadar documentation on optimizing search performance highlights the use of indexed properties to enhance search efficiency.

Indexed custom event properties in IBM Security QRadar SIEM are designed to optimize the search process by narrowing down the overall data set. When a property is indexed, QRadar can more efficiently locate events or flows that match the search criteria, thereby reducing the overall volume of data that needs to be searched and enhancing performance. This is reflected in statement B, where indexed filters eliminate portions of the data set that are not relevant to the search query, effectively reducing the number of event or flow logs that must be examined .

Moreover, the use of indexed event and flow properties for optimizing searches is a recommended practice in QRadar. By selectively indexing properties that are frequently used in searches, analysts can significantly improve the speed and efficiency of their queries. This approach is beneficial in environments where quick access to specific event or flow data is crucial for timely threat detection and response. Therefore, statement E highlights the importance of utilizing indexed properties to streamline the search process and facilitate more effective security analytics .

To check the offenses triggered and mapped to the MITRE ATT&CK framework using the Use Case Manager app, an analyst can navigate through the Offenses tab, click on All Offenses, and then utilize the All Offenses Summary toolbar to display rules contributing to an offense. This process allows for an investigation into how offenses correlate with the MITRE ATT&CK framework. However, the exact option "Detected in timeframe" is not explicitly mentioned in the provided documentation, and the described procedure offers a broader approach to reviewing offenses and their associated rules within the MITRE ATT&CK context​​.