C. They provide minimal interruption to services by being hot-swappable.
Explanation:
SFP (Small Form-factor Pluggable) modules are used to provide flexibility in connecting networking equipment, such as switches and routers, to various types of network media, including both copper and fiber interfaces. One of the key features of SFP modules, whether they are used with copper or fiber connections, is their hot-swappable nature. Hot-swappability means that you can remove or replace the SFP module while the equipment is powered on, minimizing interruption to network services. This is a significant advantage for maintenance and upgrades in a network environment.
The other options are not universally true for both copper and fiber interfaces with SFP modules:
A. Inline optical attenuators are typically used in fiber connections to reduce the signal strength and avoid overloading the receiver. This is not a common practice for copper connections with SFP modules.
B. SFP modules for fiber connections come in both single-mode and multi-mode variants, but the same module doesn't typically accommodate both types. Copper interfaces use different types of SFP modules altogether.
D. The bandwidth capability mentioned here (up to 100 Mbps in half duplex mode) doesn't accurately represent SFP modules. SFP modules can support a wide range of data rates, from 100 Mbps to 10 Gbps or even higher, depending on the specific module and the type of interface (copper or fiber).
Based on the search results, the correct answer to the question "What is the same for both copper and fiber interfaces when using SFP modules?" is:
C. They provide minimal interruption to services by being hot-swappable
The other options mentioned in the search results refer to specific features of SFP modules , such as supporting an inline optical attenuator (option A), accommodating single-mode and multi-mode (option B), offering reliable bandwidth up to 100 Mbps in half duplex mode (option D).
A hot swap describes the act of removing components from or plugging them into a computer system while the power remains switched on. This means that parts can be changed without shutting down or rebooting a computer or server.
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