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Latest and Most Accurate IBM C2150-630 Dumps Exam Questions and Answers:

Version: 8.0
Question: 21

A Deployment Professional is asked to create a redundancy link with fail over for backup.
Which mode should be used if only a redundancy link is requested?

A. mode=0
B. mode=1
C. mode=5
D. mode=6

Answer: B

Explanation:
Mode=1 is active backup. Only one slave is active. Another slave becomes active when the active slave fails.
Incorrect:
A: Mode 0 is balance round robin. Packets are transmitted in order from the first available slave to the last slave.
C: Mode=5 is balance transmit load balancing (TLB). The outgoing network data is distributed across all the slaves. A designated slave receives incoming traffic, which fails over to a backup slave when the designated slave fails.
D: Mode=6 is balance adaptive load balancing (ALB). It includes both transmit load balancing (TLB) and receive load balancing (RLB) for IPV4 network traffic.
References: http://www.ibm.com/support/knowledgecenter/SS42VS_7.2.8/com.ibm.qradar.doc/t_qradar_adm_config_nic_bonding.html

Question: 22

How can a Deployment Professional fix rules that are not distinguishing between remote and local hosts?

A. Configure the NetFlow
B. Create a Reference Set
C. Configure the VA Scanners
D. Create the Network Hierarchy

Answer: D

Question: 23

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

Answer: B,C,F

Explanation:
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.
References: http://www.ibm.com/support/knowledgecenter/SS42VS_7.2.7/com.ibm.qradar.doc/38750120.html

Question: 24

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?

A. 209.60.128.0/22
B. 209.60.129.0/23
C. C. 209.60.128.0/23
D. D. 209.60.127.0/27

Answer: C

Explanation:
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 209.60.128.0/24 and an adjacent address 209.60.129.0/24 can be merged into 209.60.128.0/23. 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.
References: http://searchnetworking.techtarget.com/definition/supernetting

Question: 25

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?

A. Proxies
B. Flow Collectors
C. Domain Controllers
D. Guest network in their offices.

Answer: B

Explanation:
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.
References:
http://www.ibm.com/support/knowledgecenter/SS42VS_7.2.7/com.ibm.qradar.doc/shc_qradar_comps.html
http://www.ibm.com/support/knowledgecenter/SS42VS_7.2.7/com.ibm.qradar.doc/c_qradar_gs_rules.html

Question: 26

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

Answer: C

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