A Systems Administrator Needs to Run the Yum Update Command

question 222

Multiple Choice

A systems administrator needs to run the yum update command two hours after employees log off and leave for the day on Friday. Which of the following is the BEST command to complete the task, if the task only needs to be run once?

• A) screen
• B) cron
• C) at
• D) nohup

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Definitions:

Relevant Range

The extent of activity or volume over which the specific cost assumptions and behaviors are considered valid.

Opportunity Cost

The cost of forgoing the next best alternative when making a decision, representing potential benefits that are missed.

Contribution Margin

The difference between a product's selling price and its total variable costs, which helps cover fixed costs and create profit.

Net Operating Income

The profit generated from a company's core business operations, excluding deductions for interest and taxes.