You’re the database administrator for a large grocery store chain. When you leave on Wednesday, there are no problems. When you arrive on Thursday (the day a new sale starts), you learn that the DSL lines are down. They went down before the local stores could download the new sales prices. All scanned goods will ring up at the price they were last week (either sale or regular) and not at current prices. The provider says it’s working on the DSL problem but can’t estimate how long the repairs will take. How do you approach the problem?

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Linux

An operating system (OS) is the software which manages hardware and resources, like CPU, storage and memory. The OS bridges the applications and hardware and makes the connections between all of your software and the hardware resources.