What is a collapsed core in a network design?

Question:
What is a collapsed core in a network design?

• a combination of the functionality of the access and distribution layers
• a combination of the functionality of the distribution and core layers
• a combination of the functionality of the access and core layers
• a combination of the functionality of the access, distribution, and core layers

Explanation: A collapsed core design is appropriate for a small, single building business. This type of design uses two layers (the collapsed core and distribution layers consolidated into one layer and the access layer). Larger businesses use the traditional three-tier switch design model.

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