Top 15 IBM Security QRadar SIEM Interview Questionnaires

1. What is Index?
An index is a collection of items that describe the data in a file, and where it is located in the system. The indexing of data can be done immediately or upon request after data has been collected. It allows for efficient and easy search optimization.
2. What is index management?
Index management is used for controlling the indexing of the database based on flow and event properties. There are some properties in the IBM QRadar index management window. These properties can be set up to index. Indexed properties allow for better search optimization.
The index management feature also offers the following statistics:
The percentage of searches that have been saved
The index measures the volume of data that has been stored on the disk during the specified time period.
3. What is the function and purpose of the index management toolbar
The index management toolbar allows you to perform the following functions.
To enable the index, select the property you wish to index from the index management toolbar, and click on the enable the icon.
Disable the index: Select the property from the index management list, and click on the icon to disable the index.
Quick search: You can quickly search for the property in the index management listing by entering the keyword related to the property in this quick search field.
4. What is the reference set?
The IBM Security QRadar Reference sets store data in a list format. The Reference set stores business data such IP addresses and usernames that are collected from events and flows in the network. It contains unique values for searching, filtering, testing rule conditions, and other functions.
5. How do we add elements to a reference collection?
It is important to ensure that the reference set has a.csv file before adding elements. This is how to add elements to a reference list:
Click on Admin to open the navigation menu.
Select the System configuration section and click on reference set management.
Select the reference set where you want to add elements.
Click on View Content and choose the Content tab.
Click on Select File to browse the.csv file you wish to import.
Click on the Domain where you wish to add reference set data.
Click on import.
6. What is the purpose of the QRadar Qflow collector
QRadar Qflow tracks network flows from all devices connected to a network. It also records live and recorded feeds like Network taps, Netflow, QRadar flows logs.
7. How do we schedule updates?
As per the settings on the update configuration page, IBM Security QRadar automatically updates on a recurring basis. You can schedule large updates to run off-hours so that your system’s performance does not suffer.
You can schedule updates as follows:
To open the admin tab, open the navigation menu.
Click on Auto-update in the system configuration section.
The list allows you to select the type of updates you want from the schedule.
You can use the calendar to select the day and time you want to start the update.
8. How do we view the pending updates
You can view the pending updates in the updates window. The system is set up for automatic weekly updates. If the system does not show any updates, it means that it has not been in operation for too long. You will need to manually check for updates.
Follow the below-mentioned process to check for updates
Click on the navigation menu, and choose Admin.
Select auto-update in the system configuration section.
Click on the update to view more information.
9. What is a retention bucket?
Retention buckets are used to determine how long event and flow data will be kept in IBM Security QRadar. QRadar compares each event and flows data received and stores it in the retention bucket according to the retention bucket filter criteria. After the deletion period expires, the data is automatically deleted. This period is defaulted to 30 days.