Exam 200-105 | Question id=1956 | Infrastructure Services |
What are three reasons to collect Netflow data on a company network?
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. |
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.