Cisco 300-415 Exam Questions

In Cisco SD-WAN, application lists are used to identify and manage specific types of application traffic. Preconfigured application lists are provided by Cisco to simplify the management and configuration of common applications.

1.Preconfigured Application Lists: Among the preconfigured application lists provided by Cisco SD-WAN, Microsoft_Office365 is one of them. This list helps in easily identifying and managing traffic related to Microsoft Office 365 applications.

1.Usage: These preconfigured lists can be used in policies to ensure optimized routing and performance for critical applications like Microsoft Office 365, which are widely used in enterprise environments.

1.Reference:

oCisco SD-WAN Application-Aware Routing Configuration Guide

Cisco SD-WAN Policy Framework Documentation

To allow VPN 10 traffic to have direct internet access locally from the WAN Edge device, the configuration must ensure that the traffic is routed correctly and that NAT (Network Address Translation) is applied to allow the traffic to exit to the internet.

1.Policy Configuration:

oNAT Use: The configuration should include a directive to use NAT for the specific VPN (VPN 10 in this case). This ensures that the traffic originating from VPN 10 can be translated and routed to the internet.

oApply Policy: The policy should be applied in the outbound direction to the appropriate interface that connects to the internet.

1.Option A Analysis:

oThis option includes the nat use-vpn 0 directive, which instructs the system to use NAT for traffic in VPN 10, allowing it to access the internet directly.

oThe apply-policy command is correctly used to apply the policy to the site list and the data-policy DPI from-service.

1.Reference:

oCisco SD-WAN NAT Configuration Guide

Cisco SD-WAN Direct Internet Access (DIA) Configuration Documentation

An application-aware firewall in Cisco SD-WAN provides advanced security by allowing policies to be defined based on specific applications and their behaviors.

1.Sequence: In the context of an application-aware firewall, a sequence defines the order in which firewall rules are evaluated. Each sequence can contain match conditions and corresponding actions to be taken if the conditions are met.

1.Default Action: The default action is a crucial component that specifies what action to take if none of the defined sequences match the traffic. This ensures that there is always a fallback action to handle unmatched traffic, providing a safety net for security policies.

1.Reference:

oCisco SD-WAN Security Policy Configuration Guide

oCisco SD-WAN Firewall Policy Documentation

The vBond Orchestrator in Cisco SD-WAN is responsible for authenticating and orchestrating connectivity between the SD-WAN edge devices (vEdge routers) and the vManage and vSmart controllers. The reachability of vBond is crucial for the initial device onboarding and ongoing operations.

1.DNS (Domain Name System): vManage resolves the vBond reachability using DNS. By using a Fully Qualified Domain Name (FQDN) for the vBond orchestrator, the system can dynamically resolve the vBond's IP address, which allows for flexibility in managing the vBond's location and redundancy.

1.Functionality: When a new edge device comes online, it contacts the vBond orchestrator using its FQDN. DNS resolution translates this FQDN into an IP address, allowing the device to establish a secure connection.

1.Reference:

oCisco SD-WAN Deployment Guide

oCisco SD-WAN vBond Orchestrator Configuration Guide

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