Correct Answer: They allow for the addition or removal of various modules (e.g., line cards, power supplies) to customize functionality Explanation: Modular Cisco devices (like Catalyst 6500/9000 chassis or ASR routers) are designed with slots to accept different types of modules (e.g., port cards, service modules, power supplies) to provide flexibility and scalability.
Correct Answer: They allow for the addition or removal of various modules (e.g., line cards, power supplies) to customize functionality Explanation: Modular Cisco devices (like Catalyst 6500/9000 chassis or ASR routers) are designed with slots to accept different types of modules (e.g., port cards, service modules, power supplies) to provide flexibility and scalability.