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200-301 · Question #1159

What are two disadvantages of a full-mesh topology? (Choose two.)

The correct answer is A. It requires complex configuration. D. It has a high implementation cost.. A full-mesh topology's primary drawbacks are the significant configuration complexity and the high cost associated with establishing numerous direct connections.

Submitted by zhang_li· Mar 5, 2026Network Fundamentals

Question

What are two disadvantages of a full-mesh topology? (Choose two.)

Options

  • AIt requires complex configuration.
  • BIt needs a high MTU between sites.
  • CIt works only with BGP between sites.
  • DIt has a high implementation cost.
  • EIt must have point-to-point communication.

How the community answered

(26 responses)
  • A
    96% (25)
  • B
    4% (1)

Why each option

A full-mesh topology's primary drawbacks are the significant configuration complexity and the high cost associated with establishing numerous direct connections.

AIt requires complex configuration.Correct

In a full-mesh topology, every node has a direct connection to every other node, leading to a large number of connections (n*(n-1)/2) and thus intricate configuration requirements as the number of nodes increases.

BIt needs a high MTU between sites.

While MTU is a networking consideration, a full-mesh topology does not inherently demand a *high* MTU; MTU size is typically determined by the network path and underlying technology, not the mesh structure itself.

CIt works only with BGP between sites.

A full-mesh topology can use various routing protocols, including OSPF, EIGRP, or static routes, and is not exclusively limited to BGP between sites.

DIt has a high implementation cost.Correct

The necessity for a dedicated direct link between every pair of nodes in a full-mesh topology results in substantial hardware and cabling costs, making implementation expensive.

EIt must have point-to-point communication.

While a full-mesh topology *consists* of point-to-point communications, this is a characteristic of its design, not a disadvantage; the disadvantage stems from the *number* of required point-to-point links.

Concept tested: Full-mesh network topology characteristics and disadvantages

Source: https://learn.microsoft.com/en-us/azure/virtual-wan/virtual-wan-about

Topics

#full-mesh topology#network design#WAN topology#network cost

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