A network architect needs to design a new network to connect multiple private data centers. The network must: - Provide privacy for all traffic between locations. - Use preexisting internet…

The correct answer is B. SD-WAN. SD-WAN (Software-Defined Wide Area Network) is the best fit because it satisfies all three requirements simultaneously. It runs over existing internet connections (no new dedicated circuits needed), encrypts all traffic between sites to ensure privacy, and uses intelligent path…

Cloud Network Design

Question

A network architect needs to design a new network to connect multiple private data centers. The network must:

Provide privacy for all traffic between locations.
Use preexisting internet connections.
Use intelligent steering of application traffic over the best path.

Which of the following best meets these requirements?

Options

AMPLS connections
BSD-WAN
CSite-to-site VPN
DExpressRoute

How the community answered

(37 responses)

A
8% (3)
B
84% (31)
C
5% (2)
D
3% (1)

Explanation

SD-WAN (Software-Defined Wide Area Network) is the best fit because it satisfies all three requirements simultaneously. It runs over existing internet connections (no new dedicated circuits needed), encrypts all traffic between sites to ensure privacy, and uses intelligent path selection to route application traffic over the optimal link based on latency, jitter, and packet loss metrics. MPLS (A) uses dedicated leased lines rather than existing internet connections and is expensive to provision. Site-to-site VPN (C) provides encryption over internet connections but lacks intelligent, application-aware traffic steering - it typically uses static routing. ExpressRoute (D) is a Microsoft Azure dedicated private connection product, not an internet-based solution and not generally applicable to multi-vendor private data centers.

Topics

#SD-WAN#WAN architecture#Traffic steering#Network design principles

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