Preparing Practice Exam…
Please wait a moment while the system generates the exam questions, answers, and study session.
Please wait a moment while the system generates the exam questions, answers, and study session.
Implementing and Operating Cisco Enterprise Network Core Technologies (ENCOR) · Cisco
Select 2 answers.
This question asks for 2 answers, but our data marks only 1. Compare with the community discussion below for the full answer.
Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.
Traffic to be analyzed is reduced by a sampling rate of 1% (out of every 100 packets, only one packet will be captured, exported, and analyzed) thus reducing CPU and memory load. The accuracy will be degraded since not all of the traffic will be analyzed. Security of the exported data can be enhanced through encryption, hashing, firewalls, etc.
Answers are correct
Flow sampling reduces the CPU overhead of analyzing traffic with Flexible NetFlow by reducing the number of packets that are analyzed. Flow samplers are used to reduce the load on the device that is running by limiting the number of packets that are selected for analysis. https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/fnetflow/configuration/15-mt/fnf-15-mt-book/use-fnflow-redce-cpu.pdf