Exam 200-201 topic 1 question 134 discussion

"D" is correct DPI can be made by AVC that can setup QoS to tune traffic. Cisco AVC uses existing Cisco Network-Based Application Recognition Version 2 (NBAR2) to provide deep packet inspection (DPI) technology to identify a wide variety of applications within the network traffic flow, using Layer 3 to Layer 7 data. NBAR works with quality of services (QoS) features to help ensure that the network bandwidth is best used to fulfill its main primary objectives. The benefits of combining these features include the ability to guarantee bandwidth to critical applications, limit bandwidth to other applications, drop selective packets to avoid congestion, and mark packets appropriately so that the network and the service provider’s network can provide QoS from end to end. Cisco CyberOps Associate CBROPS 200-201 Official Cert Guide By Omar Santos

The correct answer is A. total throughput on the interface of the router and NetFlow records.

Throughput - tells you how much data was transferred from a source at any given time Bandwidth - tells you how much data could theoretically be transferred from a source at any given time. https://www.dnsstuff.com/network-throughput-bandwidth We're talking about "high availability and responsiveness" which is inclined on the networking side. From a Network Engineer's perspective, you'll "need to check first" how much throughput you have to determine if an interface have enough bandwidth to handle the throughput?

The correct answer is A. total throughput on the interface of the router and NetFlow records. To analyze the network and identify ways to improve traffic movement to minimize delays, the engineer must obtain information related to the total throughput on the interface of the router and NetFlow records.

Correct ANS = C

i think "A". The engineer needs to obtain the total throughput on the interface of the router and NetFlow records to analyze the network and identify ways to improve traffic movement to minimize delays. This information will allow the engineer to identify the current network traffic patterns and use this information to optimize network traffic movement, ensuring high availability and responsiveness of the network applications.

Answer C does not help investigating into “latency”. D is correct.

C is the correct answer ==> running processes on the applications and their total network usage

i think c, because latency is affected by running processes

a is correct

The correct answer is C: running processes on the applications and their total network usage D is not correct. Deep packet inspection slowdown your network.

Deep packet inspection offers immediate insight into network slowdowns Resolve end-user slowdowns Narrow down the issue to determine whether slowness is caused by the network or an application. Analyze applications Calculate response times for all relevant applications and determine the impact on user experience. Classify network traffic Classify and restrict network traffic as needed and identify associated risk levels.

I think the important part of this question is: "identify ways to improve traffic movement to minimize delays" Why is deep packet inspection needed to improve traffic movement? Should't be the answer something like "packet flow information for every application"?