Question 1,776 of 2,152

NetFlow and Flexible NetFlow →mediumMultiple ChoiceObjective-mapped

Quick Answer

The correct answer is that the flow monitor will export flow records every 60 seconds regardless of whether the flow is still active. This is because the `cache timeout active 60` command under the flow monitor configuration forces an active timer-based export, meaning the router will send the collected NetFlow data for a given flow every 60 seconds even if that flow is still generating traffic. Without this command, the default active timeout is 1800 seconds (30 minutes), so setting it to 60 seconds dramatically increases export frequency for real-time monitoring. On the Cisco CCNP ENARSI 300-410 exam, this concept tests your understanding of Flexible NetFlow cache management and the distinction between active and inactive timeouts—a common trap is confusing `cache timeout active` with `cache timeout inactive`, which triggers export only after a flow stops sending packets. Remember the memory tip: "Active is alive and exporting; inactive is idle and expiring."

300-410 NetFlow and Flexible NetFlow Practice Question

This 300-410 practice question tests your understanding of netflow and flexible netflow. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.

Examine the following partial configuration on router R1:

flow record RECORD-1 match ipv4 source address match ipv4 destination address match ipv4 protocol collect counter bytes collect counter packets ! flow monitor MONITOR-1 record RECORD-1 cache timeout active 60 !

interface GigabitEthernet0/1
 ip flow monitor MONITOR-1 input

Which statement about this configuration is true?

Question 1mediummultiple choice

Read the full NAT/PAT explanation →

A
The flow monitor will export flow records every 60 seconds regardless of whether the flow is still active.
The cache timeout active 60 command causes active flows to be exported every 60 seconds, even if the flow is still ongoing.
B
The flow monitor will only export flows that have been idle for 60 seconds.
Why wrong: The cache timeout active command exports active flows, not idle flows. Idle timeout is configured separately.
C
The flow record is missing the 'collect transport tcp-flags' command to be valid.
Why wrong: The flow record is valid as shown; TCP flags are optional and not required for basic flow tracking.
D
The flow monitor will not export any data because no exporter has been configured.
Why wrong: While an exporter is typically needed to send data to a collector, the flow monitor can still collect and cache flows locally; export requires an exporter, but the configuration is otherwise valid.

Full breakdown with real-world context →

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

The flow monitor will export flow records every 60 seconds regardless of whether the flow is still active.

This question tests understanding of Flexible NetFlow configuration components and the effect of the cache timeout active command.

Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✓
The flow monitor will export flow records every 60 seconds regardless of whether the flow is still active.
Why this is correct
The cache timeout active 60 command causes active flows to be exported every 60 seconds, even if the flow is still ongoing.
Related concept
Static NAT maps one inside address to one outside address.
✗
The flow monitor will only export flows that have been idle for 60 seconds.
Why it's wrong here
The cache timeout active command exports active flows, not idle flows. Idle timeout is configured separately.
✗
The flow record is missing the 'collect transport tcp-flags' command to be valid.
Why it's wrong here
The flow record is valid as shown; TCP flags are optional and not required for basic flow tracking.
✗
The flow monitor will not export any data because no exporter has been configured.
Why it's wrong here
While an exporter is typically needed to send data to a collector, the flow monitor can still collect and cache flows locally; export requires an exporter, but the configuration is otherwise valid.

Common exam traps

Common exam trap: NAT rules depend on direction and matching traffic

NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.

Trap categories for this question

Command / output trap
The cache timeout active command exports active flows, not idle flows. Idle timeout is configured separately.

Detailed technical explanation

How to think about this question

NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.

KKey Concepts to Remember

Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.

TExam Day Tips

Identify inside and outside interfaces first.
Check whether the scenario needs static NAT, dynamic NAT or PAT.
Do not confuse NAT matching ACLs with normal packet-filtering intent.

Key takeaway

NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.

Real-world example

How this comes up in practice

A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.

What to study next

Got this wrong? Here's your next step.

Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related 300-410 NAT questions on configuration and troubleshooting.

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FAQ

Questions learners often ask

What does this 300-410 question test?

NetFlow and Flexible NetFlow — This question tests NetFlow and Flexible NetFlow — Static NAT maps one inside address to one outside address..

What is the correct answer to this question?

The correct answer is: The flow monitor will export flow records every 60 seconds regardless of whether the flow is still active. — This question tests understanding of Flexible NetFlow configuration components and the effect of the cache timeout active command.

What should I do if I get this 300-410 question wrong?

What is the key concept behind this question?

Static NAT maps one inside address to one outside address.

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