CiscoProfessional level300-415Page 3 of 4

300-415 exam dumps: questions 201 to 300 of 319

Page 3 of the free 300-415 question bank for the Implementing Cisco SD-WAN Solutions exam. Questions 201 to 300 are listed below, the first 5 in full with answers and explanations. Back to page 1 for the exam overview and FAQ.

Question bank last updated February 2025

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Free 300-415 practice questions

Questions 201 to 205 of 319

Pick an answer before you open the explanation. Each question also has its own page with a permalink.

300-415 Question 201

Select 3

Your organization is deploying Cisco SD-WAN and needs to ensure both secure data transfer between branch sites and prioritization of critical traffic such as voice and video. Which combination of features would best meet these requirements?

A
Enable IPsec encryption for all data plane traffic.
B
Configure Application-Aware Routing policies to prioritize voice and video traffic.
C
Use a Local Internet Breakout policy to route all traffic directly to the internet.
D
Implement Transport-Based Quality of Service (QoS) to enforce bandwidth and priority rules.
E
Disable TLOC extensions to reduce overhead on WAN links.

Show answer and explanation

Correct answers: A, B, D

Explanation

To meet the organization's requirements, IPsec encryption ensures data security between branch sites, Application-Aware Routing prioritizes critical traffic based on application performance, and Transport-Based QoS enforces bandwidth and priority rules for consistent quality. These features together address both security and QoS needs in a Cisco SD-WAN deployment.

A. Correct.
Enabling IPsec encryption ensures secure data transfer by encrypting traffic between branch sites, meeting the security requirement.
B. Correct.
Application-Aware Routing policies allow the prioritization of critical traffic like voice and video by dynamically selecting the best path based on application performance.
C. Incorrect.
Using a Local Internet Breakout policy routes traffic directly to the internet, which is not relevant for securing branch-to-branch communication or prioritizing critical traffic.
D. Correct.
Transport-Based QoS enforces bandwidth and priority rules, ensuring critical traffic like voice and video receives the necessary resources.
E. Incorrect.
Disabling TLOC extensions reduces WAN link overhead but has no direct impact on security or traffic prioritization.

300-415 Question 202

Select 3

An enterprise is deploying Cisco SD-WAN to improve its branch network's security and Quality of Service (QoS). The network administrator wants to ensure that critical business applications are prioritized and that sensitive data is encrypted when traversing the network. Which configuration steps should the administrator take to meet these requirements?

A
Configure centralized application-aware policies to prioritize business-critical applications.
B
Enable Transport Layer Security (TLS) encryption on all SD-WAN tunnels.
C
Apply QoS queuing policies to prioritize traffic based on DSCP markings.
D
Configure ZBFW (Zone-Based Firewall) policies to block non-business traffic.
E
Use IPSec encryption for data plane traffic between SD-WAN devices.
F
Enable local breakout for all traffic at branch sites.

Show answer and explanation

Correct answers: A, C, E

Explanation

To meet the requirements, the administrator should configure centralized application-aware policies to prioritize critical business applications, apply QoS queuing policies to ensure traffic prioritization based on DSCP markings, and enable IPSec encryption to secure sensitive data in transit. These configurations work together to enhance both the security and QoS in the Cisco SD-WAN environment.

A. Correct.
Correct: Centralized application-aware policies allow the administrator to identify and prioritize business-critical applications, ensuring optimal performance.
B. Incorrect.
Incorrect: TLS is not typically used for SD-WAN tunnel encryption. Instead, IPSec is the standard protocol for securing SD-WAN data plane traffic.
C. Correct.
Correct: Applying QoS queuing policies ensures that critical traffic is prioritized based on DSCP markings, which is essential to meet QoS requirements.
D. Incorrect.
Incorrect: While ZBFW can improve security, it does not address the prioritization of business-critical applications or encryption of sensitive data.
E. Correct.
Correct: IPSec encryption secures data traversing the SD-WAN, ensuring confidentiality and integrity of sensitive business traffic.
F. Incorrect.
Incorrect: Enabling local breakout for all traffic could expose sensitive data to the internet without encryption and does not prioritize critical applications.

300-415 Question 203

Select 3

An enterprise is using Cisco SD-WAN to connect multiple branch locations. The IT team is tasked with ensuring that critical voice traffic receives priority over other applications while also implementing advanced security features to protect sensitive data. Which combination of actions should the IT team take to meet these requirements?

A
Configure application-aware routing policies to prioritize voice traffic based on DSCP markings.
B
Enable IPSec encryption on all transport links to secure data in transit.
C
Set up a QoS policy to reserve bandwidth for voice traffic and apply it to the TLOC path.
D
Enable ZBFW (Zone-Based Firewall) to inspect and filter traffic between branch sites.
E
Deploy a cloud security solution to offload QoS policies for voice traffic.

Show answer and explanation

Correct answers: A, B, C

Explanation

To meet the requirements of prioritizing voice traffic and securing sensitive data, the IT team should configure application-aware routing policies to identify and prioritize voice traffic, enable IPSec encryption to secure data, and set up QoS policies to reserve bandwidth for voice. These actions ensure both quality of service and robust security for critical applications.

A. Correct.
This is correct because application-aware routing policies allow the SD-WAN fabric to identify and prioritize specific traffic types such as voice, ensuring low-latency and high-quality communication.
B. Correct.
This is correct because IPSec encryption ensures that sensitive data, including voice traffic, is securely transmitted across the SD-WAN fabric.
C. Correct.
This is correct because setting up a QoS policy to reserve bandwidth for voice traffic ensures that critical applications like voice receive the required resources to maintain quality.
D. Incorrect.
This is incorrect because ZBFW focuses on traffic inspection and filtering, which is not directly related to prioritizing voice traffic or securing data in transit.
E. Incorrect.
This is incorrect because cloud security solutions are used for centralized threat detection and protection, not for implementing QoS policies specifically for voice traffic.

300-415 Question 204

Single answer

You are configuring service insertion in a Cisco SD-WAN deployment to redirect traffic through a third-party security appliance for deep packet inspection (DPI). After configuring the service chaining in the vManage dashboard, users report that traffic is bypassing the security appliance and not being inspected. Which step should you verify to ensure proper service insertion?

A
Verify that the service VPN is correctly configured on the devices where service insertion is applied.
B
Ensure that the SD-WAN controllers are running the latest firmware version.
C
Check if the data policies for redirecting traffic to the service appliance are properly applied in vManage.
D
Verify that the service appliance is reachable and has the correct routing configured.

Show answer and explanation

Correct answer: C

Explanation

Service insertion in Cisco SD-WAN relies heavily on data policies configured in vManage to redirect traffic to the intended service appliance. If these policies are not correctly configured or applied, traffic will not be redirected and will bypass the service. While other factors like service VPNs, firmware, and appliance reachability are important, they do not directly address the issue of traffic bypassing the appliance.

A. Incorrect.
While service VPN configuration is important, it is not specific to ensuring proper traffic redirection through the service appliance. The issue described relates to bypassing the service, which is likely caused by policy misconfiguration.
B. Incorrect.
Upgrading firmware can address bugs, but it is not directly related to the issue of traffic bypassing the service appliance. The problem is more likely related to configuration rather than software version.
C. Correct.
Data policies in Cisco SD-WAN are critical for redirecting traffic to a service appliance. If these policies are not correctly configured or applied, traffic will bypass the appliance, which matches the described issue.
D. Incorrect.
Although the service appliance's reachability and routing are necessary, they would typically result in traffic drops (if unreachable) rather than bypassing the appliance. The issue described points to a policy misconfiguration.

300-415 Question 205

Single answer

You are implementing Cisco SD-WAN in your organization's network and need to configure service insertion to direct specific traffic through a firewall before it reaches its destination. You want to ensure this traffic passes through the firewall without disrupting other traffic flows. Which configuration step must you take to achieve this?

A
Create a centralized control policy to match the traffic and redirect it to the firewall service.
B
Enable Application-Aware Routing (AAR) to identify and redirect the traffic through the firewall.
C
Use TLOC extension to configure a direct path to the firewall for all traffic.
D
Configure a local data policy on the branch edge router to redirect matching traffic to the firewall.

Show answer and explanation

Correct answer: A

Explanation

Service insertion in Cisco SD-WAN requires the use of centralized control policies to redirect specific traffic to services like firewalls. This approach ensures consistent traffic handling and avoids disruptions to other flows. Application-Aware Routing and TLOC extension serve different purposes and are not used for service insertion. Similarly, local data policies operate only at the site level and lack the centralized control needed for this task.

A. Correct.
Correct. A centralized control policy is used in Cisco SD-WAN to define traffic redirection to services such as firewalls. It allows precise control over which traffic is redirected without affecting other flows.
B. Incorrect.
Incorrect. Application-Aware Routing (AAR) is used for path optimization based on application performance metrics and SLA requirements, not for service insertion.
C. Incorrect.
Incorrect. TLOC extension is used to extend transport locators across devices, not for redirecting traffic through service insertion points.
D. Incorrect.
Incorrect. While local data policies can modify traffic behavior at the site level, they are not the appropriate method for centralized service redirection in SD-WAN.

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300-415 practice questions 201 to 300 of 319

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