A network architect must design a new branch network that meets the following requirements: - No single point of failure - Clients cannot be impacted by changes to the underlying medium - Clients…

The correct answer is B. Mesh. A mesh topology satisfies all three requirements. First, because every node connects to multiple other nodes, there is no single point of failure - if any link or node fails, traffic can be rerouted through alternate paths. Second, clients are not impacted by changes to a…

Cloud Network Design

Question

A network architect must design a new branch network that meets the following requirements:

No single point of failure
Clients cannot be impacted by changes to the underlying medium
Clients must be able to communicate directly to preserve bandwidth

Which of the following network topologies should the architect use?

Options

AHub-and-spoke
BMesh
CSpine-and-leaf
DStar

How the community answered

(44 responses)

A
2% (1)
B
82% (36)
C
11% (5)
D
5% (2)

Explanation

A mesh topology satisfies all three requirements. First, because every node connects to multiple other nodes, there is no single point of failure - if any link or node fails, traffic can be rerouted through alternate paths. Second, clients are not impacted by changes to a single underlying medium because multiple redundant paths exist. Third, in a full mesh, every node has a direct link to every other node, allowing direct client-to-client communication without routing through a central aggregation point, which preserves bandwidth. Hub-and-spoke (A) and star (D) both have a central hub as a single point of failure and require traffic to pass through the center. Spine-and-leaf (C) provides redundancy but is a hierarchical data center design where leaf-to-leaf communication still passes through spine switches.

Topics

#Network Topology#Mesh Network#Fault Tolerance#Network Design Principles

Community Discussion

No community discussion yet for this question.

Full CNX-001 Practice