Cisco Certified Network Associate (CCNA) Practice Exam 2025 – The Comprehensive All-in-One Guide to Exam Success!

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Which command is used to enable Netflow for ingress traffic on an interface?

(config-if)#ip flow ingress

The command used to enable NetFlow for ingress traffic on an interface is "ip flow ingress." This command is specifically designed to collect flow data for packets entering an interface. When applied, it configures the interface to monitor incoming traffic and gather flow data, which can be used for various analysis purposes, such as traffic profiling, network performance monitoring, and security assessments.

The use of "ip" at the beginning of the command indicates that it applies to Internet Protocol settings, which is consistent with how network interfaces are typically configured in Cisco devices. By using this command, network administrators ensure that the ingress traffic is captured accurately, allowing for effective flow monitoring.

In contrast, other commands listed do not follow the correct syntax to enable NetFlow for ingress traffic. They may contain variations or terms that do not exist within the context of NetFlow configuration, making them invalid for this purpose.

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(config-if)#ip netflow ingress

(config-if)#enable flow ingress

(config-if)#start flow analysis ingress

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