Cisco 200-105 Exam

What are three reasons to collect Netflow data on a company network? (Choose three.)

  • A. To identify applications causing congestion.
  • B. To authorize user network access.
  • C. To report and alert link up / down instances.
  • D. To diagnose slow network performance, bandwidth hogs, and bandwidth utilization.
  • E. To detect suboptimal routing in the network.
  • F. To confirm the appropriate amount of bandwidth that has been allocated to each Class of Service.
Answer: Option A. D. F.

NetFlow facilitates solutions to many common problems encountered by IT professionals.
+ Analyze new applications and their network impact
Identify new application network loads such as VoIP or remote site additions.
+ Reduction in peak WAN traffic
Use NetFlow statistics to measure WAN traffic improvement from application-policy changes; understand who is utilizing the network and the network top talkers.
+ Troubleshooting and understanding network pain points
Diagnose slow network performance, bandwidth hogs and bandwidth utilization quickly with command line interface or reporting tools.
+ Detection of unauthorized WAN traffic
Avoid costly upgrades by identifying the applications causing congestion.
+ Security and anomaly detection
NetFlow can be used for anomaly detection and worm diagnosis along with applications such as Cisco CS-Mars.
+ Validation of QoS parameters
Confirm that appropriate bandwidth has been allocated to each Class of Service (CoS) and that no CoS is over-or under-subscribed. http://www.c

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