300-415 Question 287
Single answerA financial institution is deploying Cisco SD-WAN to improve the performance of its branch office applications. The IT team is concerned about the high volume of redundant data being transmitted between branches and the data center, leading to inefficient bandwidth utilization. How can Cisco's Data Redundancy Elimination (DRE) feature address this issue, and what is an essential characteristic of DRE in this scenario?
- A
DRE reduces bandwidth usage by identifying and removing duplicate data patterns before transmission.
- B
DRE requires manual configuration of specific traffic flows for redundancy elimination.
- C
DRE operates at the application layer to optimize specific application protocols.
- D
DRE reduces latency by compressing all data packets regardless of duplication.
Show answer and explanation
Correct answer: A
Explanation
Cisco's Data Redundancy Elimination (DRE) is a key feature in SD-WAN that optimizes bandwidth by identifying redundant data patterns and sending references to previously transmitted data instead of retransmitting it. This process is automated and works across all traffic types, improving bandwidth efficiency without requiring manual configuration or application-specific adjustments.
- A. Correct.
Correct. DRE reduces bandwidth usage by identifying duplicate data patterns, storing them, and sending references for repeated data instead of retransmitting the same data.
- B. Incorrect.
Incorrect. DRE works automatically and does not require manual configuration of traffic flows for redundancy elimination.
- C. Incorrect.
Incorrect. DRE operates at the transport layer and is not application-specific, making it applicable to a wide range of traffic types.
- D. Incorrect.
Incorrect. While DRE can improve bandwidth efficiency, it does not reduce latency by compressing data. It focuses on eliminating redundancy, not compression.