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What is a key element used in a vBond Orchestrator redundancy topology?
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Question 381

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

A.

inefficient traffic forwarding caused oy inbound shapers

A.

inefficient traffic forwarding caused oy inbound shapers

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B.

reduced application performance degradation rotated to service degradation

B.

reduced application performance degradation rotated to service degradation

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C.

applications with occasional invalid data input and poor performance

C.

applications with occasional invalid data input and poor performance

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D.

traffic flows with increased delay over a particular transport

D.

traffic flows with increased delay over a particular transport

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Suggested answer: B

Explanation:

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

1.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.

1.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.

1.Reference:

oCisco SD-WAN Security and Quality of Service Configuration Guide

oCisco SD-WAN Forward Error Correction Technical Whitepaper

Question 382

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What are the two components of an application-aware firewall? (Choose two.)

A.

zone pair

A.

zone pair

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B.

sequence

B.

sequence

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C.

lists

C.

lists

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D.

default action

D.

default action

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E.

sequence action

E.

sequence action

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F.

firewall policy

F.

firewall policy

Answers
Suggested answer: B, D

Explanation:

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

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