IBM C1000-162 IBM Certified Analyst - Security QRadar SIEM V7.5 Exam Practice Test

Answer : A

Adding indexed properties to QRadar can significantly improve the efficiency of searches by reducing the size of the data set required to locate matches for non-indexed search values. Indexing creates references to unique terms in the data and their locations, which means that the search engine can filter the data set by indexed properties first, eliminating irrelevant portions of the data set and thereby reducing the overall volume of data that needs to be searched.

Answer : D

The Domain attribute governs who can view the value of a reference set data element, ensuring that only users with appropriate domain access or tenant assignments can view the data. This is essential for maintaining data visibility and access control within a multi-tenant QRadar environment.

Answer : A

QRadar supports generating reports in various file formats, including PDF, HTML, XML, and XLS. These formats provide flexibility in how reports are viewed and shared, catering to different needs and preferences for report presentation and analysis.

Answer : B

On the Offenses tab within QRadar, the 'Offense Type' column explains the cause of the offense. The offense type is determined by the rule that triggered the offense, and it dictates the kind of information displayed in the Offense Source Summary pane. This helps analysts understand the nature and origin of the offense, facilitating more effective investigation and response actions.

Answer : B

In IBM Security QRadar SIEM V7.5, to search for all events containing a specific keyword such as 'access', an analyst should navigate to the 'Log Activity' tab. This section of the QRadar interface is dedicated to viewing and analyzing log data collected from various sources. By running a quick search with the 'access' keyword in the Log Activity tab, the analyst can filter out events that contain this term in any part of the log data. This functionality is crucial for identifying specific activities or incidents within the vast amounts of log data QRadar processes, allowing analysts to quickly hone in on relevant information for further investigation or action.

Answer : B

The magnitude rating of an offense in QRadar is calculated based on relevance, severity, and credibility. Relevance determines the impact on the network, credibility indicates the integrity of the offense, and severity represents the level of threat. QRadar uses complex algorithms to calculate and periodically re-evaluate the offense magnitude rating.

Answer : C

A YARA rule is used for malware identification and classification, based on textual or binary patterns. The example provided suggests a rule that flags occurrences of a specific string (str1) at a precise location within a file. The 'offset' keyword in YARA rules specifies the exact byte position where the pattern (in this case, 'str1') should appear. Thus, the correct interpretation of the YARA rule example is that it flags instances where 'str1' appears 25 bytes into the file, indicating a very specific pattern match used for identifying potentially malicious files or activities that conform to this pattern.