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300-415 · Question #381
300-415 Question #381: Real Exam Question with Answer & Explanation
The correct answer is A: Ensure that routing is symmetric between locations.. For effective Data Redundancy Elimination (DRE) in SD-WAN, it is crucial to ensure that routing is symmetric between locations, as DRE operates by analyzing and optimizing both forward and reverse traffic flows.
Architecture
Question
Which requirement must be met before deploying data redundancy elimination in SD-WAN?
Options
- AEnsure that routing is symmetric between locations.
- BDisable shaping in the queue assigned for the application.
- CEnsure that traffic is sent through a GRE tunnel
- DCreate a DRE feature template in vManage
Explanation
For effective Data Redundancy Elimination (DRE) in SD-WAN, it is crucial to ensure that routing is symmetric between locations, as DRE operates by analyzing and optimizing both forward and reverse traffic flows.
Common mistakes.
- B. Disabling shaping might be a QoS consideration, but it's not a prerequisite for the fundamental operation of data redundancy elimination.
- C. While GRE tunnels can be part of an SD-WAN underlay, DRE is an optimization feature that works over the SD-WAN tunnels (often IPsec), and specifically requiring GRE tunnels is not a general prerequisite for DRE.
- D. While a DRE feature template is required to configure and enable DRE on devices, this is a configuration step, not a fundamental networking requirement that must be met before deployment, like symmetric routing.
Concept tested. SD-WAN Data Redundancy Elimination prerequisites
Topics
#Data Redundancy Elimination#SD-WAN Optimization#Symmetric Routing#WAN Edge Features
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