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What is a characteristic of Cisco ASA Netflow v9 Secure Event Logging?

A.

It tracks flow-create, flow-teardown, and flow-denied events.

Answers
A.

It tracks flow-create, flow-teardown, and flow-denied events.

B.

It provides stateless IP flow tracking that exports all records of a specific flow.

Answers
B.

It provides stateless IP flow tracking that exports all records of a specific flow.

C.

It tracks the flow continuously and provides updates every 10 seconds.

Answers
C.

It tracks the flow continuously and provides updates every 10 seconds.

D.

Its events match all traffic classes in parallel.

Answers
D.

Its events match all traffic classes in parallel.

Suggested answer: A

Explanation:

The ASA and ASASM implementations of NetFlow Secure Event Logging (NSEL) provide a stateful, IP flow tracking method that exports only those records that indicate significant events in a flow.

The significant events that are tracked include flow-create, flow-teardown, and flow-denied (excluding those flows that are denied by EtherType ACLs).

Reference: https://www.cisco.com/c/en/us/td/docs/security/asa/asa92/configuration/general/asageneral-cli/ monitor-nsel.html

asked 10/10/2024
Cesar Augusto Veliz Reyes
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