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A Deployment Professional has come on-site to upgrade a IBM Security QRadar SIEM V7.2.7 deployment to a new fix level. Before running the upgrade, the software and fix versions must be verified.
What must the Deployment Professional verify?
A. Appliances in a deployment must be same version and same fix level.
B. Appliances in a deployment could be different version and different fix level.
C. Appliances in a deployment must be same version but fix level could be different.
D. Appliances in a deployment could be different version but fix level must be the same.
Software versions for all IBM Security QRadar appliances in a deployment must be same version and fix level. Deployments that use different QRadar versions of software are not supported.
References: IBM Security Qradar Version 7.2.7 Upgrade Guide, page 1
A Deployment Professional has been asked to create a new dashboard which consists of utilizing a saved search.
Which box should be checked when creating this search?
A. Add to my Dashboard
B. Include in my Dashboard
C. Add to my Dashboard items
D. Include in my Quick Searches
A Deployment Professional working with IBM Security QRadar SIEM V7.2.7 is noticing system notifications relating to performance degradation of the CRE relating to expensive rules. Upon locating the rules that are being expensive they need to be modified to no longer trigger this notification.
What are three causes for a rule to become expensive? (Choose three.)
A. Containing payload matches tests
B. Rule consisting of a large scope
C. Containing payload contains tests
D. Rule consisting of a narrow scope
E. Utilizing non-standard regular expressions
F. Utilizing non-optimized regular expressions
A user can create a custom rule that has a large scope, uses a regex pattern that is not efficient, includes Payload contains tests, or combines the rule with regular expressions. When this custom rule is used, it negatively impacts performance, which can cause events to be incorrectly routed directly to storage. Events are indexed and normalized but they don’t trigger alerts or offenses.
A Deployment Professional is working with IBM Security QRadar SIEM V7.2.7. for a new customer that is trying to create their network hierarchy. The customer currently has more than the maximum of 1,000 network objects and CIDR ranges. A few of the CIDRs of the customer are:
Which supernet should be used to shrink the amount of network objects for the supplied group of CIDRs?
C. C. 18.104.22.168/23
D. D. 22.214.171.124/27
Supernetting, also called Classless Inter-Domain Routing (CIDR), is a way to aggregate multiple Internet addresses of the same class.
Using supernetting, the network address 126.96.36.199/24 and an adjacent address 188.8.131.52/24 can be merged into 184.108.40.206/23. The “23” at the end of the address says that the first 23 bits are the network part of the address, leaving the remaining nine bits for specific host addresses.
A Deployment Professional has detected a big spike in a customer’s “Malware infection detected” rule that monitors their endpoint anti-virus solution. The spike happened over the weekend, but when the rule was checked, it was not changed. Since Monday morning, the rule has spiked and has not yet stopped generating offenses.
What was added to the customer’s QRadar log sources that caused this problem?
B. Flow Collectors
C. Domain Controllers
D. Guest network in their offices.
Rules perform tests on events, flows, or offenses. If all the conditions of a test are met, the rule generates a response.
QRadar QFlow Collector passively collects traffic flows from your network through span ports or network taps. The IBM Security QRadar QFlow Collector also supports the collection of external flow-based data sources, such as NetFlow.
A customer has existing complex network infrastructure with many redundant links and the IP packets are taking different paths for inbound and outbound traffic. A Deployment Professional needs to configure SFlow.
What should be configured in IBM Security QRadar SIEM V7.2.7 to support this specific case?
A. Enable flow forwarding
B. Disable flow forwarding
C. Enable asymmetric flows
D. Disable symmetric flows
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