Selected Answer: BE Cisco IOS Flexible NetFlow benefits: Flexibility and scalability of flow data beyond traditional NetFlow Customized traffic identification Ability to focus and monitor specific network behavior Ability to monitor a broader range of packet information, producing new information about network behavior Enhanced network anomaly and security detection Convergence of multiple accounting technologies into one accounting mechanism

Netflow is only "IP traffic flows" not Layer2 Only B,E are correct

I found this: "With Deep Packet Inspection, different layer data can be anazled from layer "2 to layer 7" Ref: https://ipcisco.com/lesson/flexible-netflow/ So option C is not correct B, E are correct

https://www.cisco.com/c/en/us/products/ios-nx-os-software/flexible-netflow/index.html Cisco IOS Flexible NetFlow benefits: Flexibility and scalability of flow data beyond traditional NetFlow Customized traffic identification ( B ) Ability to focus and monitor specific network behavior Ability to monitor a broader range of packet information, producing new information about network behavior ( look like C ) Enhanced network anomaly and security detection Convergence of multiple accounting technologies into one accounting mechanism. ( E ) So its B,C,E

Netflow is only "IP traffic flows" not Layer2

From this link, Flexible Netflow can include data from Layer 2. https://www.cisco.com/c/en/us/td/docs/routers/ios/config/17-x/ntw-servs/b-network-services/m_fnf-l2-fields.pdf

Flexible NetFlow extends the capabilities of traditional NetFlow by letting it collect Layer 2 header information. Search for "match datalink" or "Layer 2" attributes: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9300/software/release/16-5/configuration_guide/nmgmt/b_165_nmgmt_9300_cg/b_165_nmgmt_9300_cg_chapter_01000.html

Selected Answer: BE Why not C? As others have pointed out, Flexible Netflow goes beyond L4. One example is Netflow combined with ETA. Netflow is used to collect information about the SSL/TLS session. https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/sec_data_eta/configuration/xe-16-6/sec-data-encrypted-traffic-analytics-xe-16-6-book/sec-data-encrypted-traffic-analytics-xe-16-6-book_chapter_01.pdf

C and E https://www.cisco.com/c/en/us/products/ios-nx-os-software/flexible-netflow/index.html

Selected Answer: BE I lean toward B,E

B and E https://content.cisco.com/chapter.sjs?uri=/searchable/chapter/content/en/us/td/docs/ios-xml/ios/fnetflow/configuration/15-sy/fnf-15-sy-book/fnf-fnetflow.html.xml

Selected Answer: AB https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9300/software/release/16-5/configuration_guide/nmgmt/b_165_nmgmt_9300_cg/b_165_nmgmt_9300_cg_chapter_01000.html#:~:text=A%20comprehensive%20IP%20accounting%20feature%20that%20can%20be%20used%20to%20replace%20many%20accounting%20features%2C%20such%20as%20IP%20accounting%2C%20Border%20Gateway%20Protocol%20(BGP)%20Policy%20Accounting%2C%20and%20persistent%20caches. it does not converge but it does replace....

I think A is a feature of NetFlow v9 and not of Flexible Netflow, which is a v2 enhanced by Cisco