5.8 Configure and Verify NetFlow/IPFIX 350-501 Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   What is the effect of applying a flow monitor to an interface in the ingress direction?

   • ATraffic entering the interface is analyzed and flow records are created for that traffic
   • BThe interface is configured to send all packets to the collector for analysis
   • CThe interface is configured to drop all traffic that does not match the flow record
   • DTraffic leaving the interface is analyzed and flow records are created for that traffic
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2. 7expert · hard

   A network engineer is troubleshooting why a NetFlow collector is not receiving data from an IOS XE router. The exporter configuration appears correct, and the flow monitor is applied to the interface. The engineer checks the 'show flow exporter EXP1 statistics' output and sees that the 'Export Packet Count' is increasing, but the collector still shows no data. What is the most likely cause?

   • AThe flow monitor is applied to the wrong interface.
   • BThe router's clock is not synchronized with the collector.
   • CThe collector is using a different port than the one configured in the exporter.
   • DThe flow record is missing the required match fields.
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4. 8foundation · easy

   Which configuration elements are required to enable NetFlow on a Cisco IOS XE device?

   • AA NetFlow profile, a NetFlow interface, and a NetFlow destination
   • BA flow record, a flow exporter, and a flow monitor applied to an interface
   • CA flow sampler, a flow cache, and a flow collector
   • DAn ACL, a class map, and a policy map
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5. 9expert · hard

   A network engineer is troubleshooting a NetFlow issue on an IOS XE router. The flow monitor is applied to the interface, and the exporter is configured correctly. The 'show flow monitor MON1 cache' command shows no entries, even though traffic is passing through the interface. What is the most likely cause?

   • AThe router's clock is not synchronized.
   • BThe flow record is missing the required match fields.
   • CThe exporter is not reachable from the router.
   • DThe flow monitor is applied to the wrong direction (output instead of input).
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6. 10application · medium

   A service provider is choosing between NetFlow and IPFIX for a new monitoring system. The requirement is to export flow data using a reliable transport protocol to ensure no data loss. Which statement correctly describes the advantage of IPFIX over traditional NetFlow in this context?

   • AIPFIX can export flow records over any transport protocol, including UDP, TCP, and SCTP.
   • BIPFIX supports SCTP as a transport protocol, which provides reliable, congestion-aware delivery of flow records.
   • CIPFIX uses TCP by default, ensuring reliable delivery of all flow records.
   • DIPFIX is backward compatible with NetFlow, so it can use the same UDP transport without any changes.
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