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Which of the following situations can possibly degrade network availability?
The power supply of a router fails
All of these
A switch loses power from the main supply
A WAN link fails
The cable between two switches fails
Network engineers strive to improve the availability of networks they manage. However, network devices like routers and switches as well as links that connect network devices may fail. Such failures result in parts of network not staying usable. All the scenarios presented here will affect network availability. However, you may add redundancy to your network to protect against such scenarios.
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