Cisco Certified Network Associate (CCNA) Practice Exam

What does the command 'ip flow-export version 5' specify?

1. The version of the Netflow protocol to use

2. The version of the router firmware

3. The version of the monitoring tool

4. The version of network topology

The correct answer is: The version of the Netflow protocol to use

The command 'ip flow-export version 5' specifies the version of the NetFlow protocol to be used for exporting flow information from a Cisco router or switch. NetFlow is a network protocol developed by Cisco for collecting and monitoring network traffic information. By setting this specific command, the device is instructed to export flow data in version 5 format, which is a widely used version that supports a variety of flow data types. This version allows for the collection of detailed network traffic statistics, including source and destination IP addresses, ports, protocols, and other relevant information. Utilizing a specific version ensures compatibility with monitoring tools that analyze the exported flow data, allowing network administrators to effectively track and manage network performance and security. The other options pertain to different functionalities that are not related to this command. For instance, the router firmware version typically refers to the software running on the router itself, and while monitoring tools may utilize flow data, this command does not dictate their version. Network topology relates more to the layout of the network rather than the flow export settings. Therefore, the focus of the command is specifically on the NetFlow protocol version being employed.