IBM QRadar is an enterprise architecture that allows you to analyze logs, flows, vulnerabilities, users, and asset data. It detects high-risk threats using real-time correlation and behavioral anomaly detections. This blog is curated with some of the QRadar Interview Questions that help you to have a quick revision before you go for an interview.
1. Explain
IBM QRadar?
IBM QRadar is the enterprise Security Information and Event Management (SIEM) product that collects data from applications, network devices, and user activities. It then performs real-time analysis to identify the malicious activity and prevents organization data from cyber threats.
2. What
are the types of user authentication?
The following are the type of user authentication that QRadar supports:
- System Authentication
- TACACS Authentication
- RADIUS Authentication
- SAML Single Sign-on Authentication
- LDAP
3. What
is QRadar QFlow Collector?
QRadar QFlow Collector is combined with QRadar SIEM with a flow processor used to collect network flows from devices on the network. It helps to identify the traffic as IRC and offers a packet capture of the conversation.
IBM QRadar QFlow Collector provides the following:
- Deep Packet Inspection for detecting new security threats
- Monitor and analyze activities on social media platforms to detect potential threats
- Advanced incident analysis and insight
- Continuous asset profiling
- Policy and regulatory compliance management
4. What
is a Reference Set?
QRadar Reference Set is used to store data in a simple list format. You can populate the reference set with data such as IP addresses, IOCs, and usernames that are collected from the flows and events on the network.
5. What
is NetFlow?
QRadar NetFlow is an accounting technique that uses UDP to monitor IP traffic through routers and interpret the client, protocol, port, and server. It expands the amount of the network monitored and uses a connectionless protocol to deliver Netflow Data Export (NDE).
6. What
is the Event Collector?
QRadar Event Collector collects events from remote and local sources, normalizes the raw source events to conserve system usage, and sends data to the Event Processor.
7. What
is the use of Data Node?
Data Node helps increase the deployment's search speed by providing hardware resources to perform search queries. It allows existing and new QRadar deployments to add storage and processing capacity as required.
8. Explain
the process of setting a HA Host Offline.
QRadar allows setting primary and secondary High-availability (HA) Hosts offline. The following are the steps for setting up a HA Host offline:
- On the Navigation Menu, Click Admin.
- Click System Configuration.
- Click System and License Management icon.
- Choose the HA host that you want to set.
- From the Toolbar, select High Availability, choose Set System Offline.
9. How
to reset the SIM Model?
- To reset the SIM Model, do the following:
- On the Navigation Menu, Click Admin
- Select Clean SIM Model
- Go through the information on the Reset SIM Data Model window
- Select one of the following options to reset SIM Model:
a. Soft Clean: It closes and deactivates all the offenses in the database.
b. Hard Clean: It removes all current and past SIM data from the database.
10.
Give
some benefits of using IBM QRadar.
The following are the benefits of using QRadar SIEM:
- Identifies malicious user activity inside the organization
- Detects advanced real-time threats
- Uncovers the hidden risks in multi-cloud environments
- Centralized monitoring of the OT and IoT to find out the potential threats
- Manage security compliances such as PCI, HIPAA, GDPR, etc.
QRadar
with InfosecTrain
To learn more about IBM QRadar SIEM, check out and enroll in our IBM QRadar SIEM Security Training with InfosecTrain, one of the best training providers. Our well-experienced trainers provide you with a complete understanding of QRadar and its architecture.
