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Implementing Cisco SD-WAN Solutions (300-415 ENSDWI) Questions and Answers

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Questions # 1:

What is the order of operations for software upgrades of Cisco SD-WAN nodes'?

Options:

vBond vManage vSmart WAN Edge

vManage vBond WAN Edge. vSmart

vManage vSmart, vBond, WAN Edge

vManage vBond vSraart WAN Edge

Answer

Questions # 2:

What does forward error correction addresses in Cisco SO-WAN?

Options:

inefficient traffic forwarding caused oy inbound shapers

reduced application performance degradation rotated to service degradation

applications with occasional invalid data input and poor performance

traffic flows with increased delay over a particular transport

Answer

Explanation

Forward Error Correction (FEC) is a technique used in networking to enhance data reliability and performance, particularly over unreliable or lossy networks.

Forward Error Correction (FEC): In Cisco SD-WAN, FEC helps in mitigating the effects of packet loss and service degradation by encoding redundant data, which can be used to reconstruct lost packets. This ensures that even if some packets are lost during transmission, the data can still be accurately reconstructed at the destination.

Addressing Performance Degradation: FEC specifically addresses reduced application performance degradation caused by packet loss and network impairments. By providing this error correction capability, FEC helps maintain the performance and reliability of critical applications over potentially unstable network paths.

Cisco SD-WAN Security and Quality of Service Configuration Guide

Cisco SD-WAN Forward Error Correction Technical Whitepaper

Questions # 3:

Which IP address must be reachable by a WAN Edge device for the ZIP process to work?

Options:

10.1.1.1

4.4 4.4

172.16.1.1

8.8.8.8

Answer

Questions # 4:

Which two prerequisites must be met before the Cloud onRamp for laaS is initiated on vManage to expand to the AWS cloud? (Choose two)

Options:

Attach the *AmazonCreateVPC* and "Amazon Provision EC2" permission policy to the IAM account

Subscribe to the SD-WAN Edge router AMI in the AWS account

Attach an OSPF feature template to the AWS cloud Edge router template

Attach a device template to the cloud WAN Edge router to be deployed in the AWS

Preprovision the transit VPC in the AWS region

Answer

B, D

Explanation

https://www.cisco.com/c/en/us/td/docs/solutions/CVD/SDWAN/Cisco_Cloud_onRamp_for_IaaS_AWS_Version2.html

Questions # 5:

Which command disables the logging of syslog messages to the local disk?

Options:

no system logging disk enable

no system logging disk local

system logging disk disable

system logging server remote

Answer

Explanation

[Reference: https://sdwandocs.cisco.com/Product_Documentation/Software_Features/SDWAN_Release_16.3/02System_and_Interfaces/08Configuring_System_Logging, , , ]

Questions # 6:

Which protocol runs between the vSmart controllers and WAN Edge routers when the vSmart controller acts like a route reflector?

Options:

OMP outside the DTLS/TLS control connection

BGP inside the DTLS/TLS

IPsec inside the DTLS/TLS control connection

OMP inside the DTLS/TLS control connection

Answer

Questions # 7:

An engineer creates this data policy for DIA for VPN 10:

Question # 7

Which policy sequence enables DIA for external networks?

Question # 7

Options:

Option A

Option B

Option C

Option D

Answer

Questions # 8:

Refer to the exhibit.

Question # 8

The network design team has advised to use private IP addresses and private colors over the SP circuit for the data plane connections. The Public IP should be used for control connections. Which configuration should be applied at SiteA to achieve this task?

Question # 8