350-601 Exam Dumps - Implementing Cisco Data Center Core Technologies (350-601 DCCOR)

 To make a capture task persistent after a reboot, the command sequence in Option C should be used. This typically involves enabling the service to start at boot time using systemctl enable and then starting the service with systemctl start. This ensures that the capture task will automatically resume after the system is rebooted4

The last packet indicates a DHCP Release message, which is sent by the client to the DHCP server to release the assigned IP address. This is typically done when the client no longer requires the IP address, or before the client shuts down to ensure the IP address can be reassigned. The packet capture showing a DHCP Release message confirms that the client is informing the DHCP server that it is releasing its current IP address.

References := For further understanding of DHCP operations and troubleshooting connectivity issues, the Cisco Data Center Core Technologies source book provides detailed explanations. Additionally, Cisco’s official documentation and resources on their website offer extensive guidance on managing and troubleshooting DHCP in Cisco environments. These materials are essential for network engineers working with Cisco Nexus series switches and dealing with DHCP-related issues.

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 The command that completes the EEM script configuration for saving a copy of the running configuration to bootflash on a Cisco Nexus 9000 Series Switch is running-config. This command is used in the EEM applet to specify the source of the configuration file that needs to be copied. The complete command in the EEM applet would be action 1.0 cli command "copy running-config bootflash:/current-config.txt". This command will save the running configuration to a file named current-config.txt in the bootflash when the specified event occurs, which is when a user saves the configuration.

References: For more information on EEM scripts and the copy command on Cisco Nexus 9000 Series Switches, you can refer to the Cisco Data Center Core Technologies documentation and the Cisco NX-OS System Management Configuration Guide

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 Option A is the correct configuration set to create an EEM script that saves a copy of the running configuration on bootflash and writes a message to syslog when a user saves the configuration to a Cisco Nexus switch. The EEM script uses the event manager applet command to define the applet name and the event that triggers the script. In this case, the event is the CLI pattern “copy running-config startup-config” which matches the command that a user would use to save the configuration. The action commands specify the commands that the script will execute when the event occurs. In this case, the script will copy the running configuration to bootflash, write a message to syslog, and exit. The other options have incorrect commands or syntax errors. For example, option B uses the wrong event keyword, option C uses the wrong action keyword, and option D uses the wrong file name. References:

• Cisco Nexus 9000 Series NX-OS System Management Configuration Guide, Release 9.3(x) - Configuring Embedded Event Manager [Cisco Nexus 9000 Series Switches], Configuring Embedded Event Manager, Configuring EEM Policies Using the CLI
• Cisco Nexus 9000 Series NX-OS System Management Configuration Guide, Release 9.3(x) - Configuring Embedded Event Manager [Cisco Nexus 9000 Series Switches], Configuring Embedded Event Manager, Configuring EEM Event Statements
• Cisco Nexus 9000 Series NX-OS System Management Configuration Guide, Release 9.3(x) - Configuring Embedded Event Manager [Cisco Nexus 9000 Series Switches], Configuring Embedded Event Manager, Configuring EEM Action Statements

 IP ARP suppression (D) is used in VXLAN EVPN environments to minimize flooding. When enabled, it allows the local switch to respond to ARP requests for known hosts, thus preventing the need to flood these requests across the entire network segment1. This feature is particularly useful in scenarios where there is a large amount of ARP traffic that could potentially lead to flooding, as it reduces unnecessary broadcast traffic by handling ARP resolution within the control plane2.

References: The role and configuration of IP ARP suppression in VXLAN EVPN environments are detailed in Cisco’s documentation and best practice guides for VXLAN BGP EVPN