100-140 exam dumps

100-140 practice question 83 of 390

Cisco Certified Support Technician (CCST) IT Support. Associate level, Cisco. Free question with the correct answer and a full explanation.

100-140 Question 83

Single answer

A user reports that their desktop computer is not turning on, and you determine that the power cable might be the issue. Which of the following cables would most likely be used to supply power to a desktop computer?

  1. A

    C13/C14 power cord

  2. B

    USB-C power cable

  3. C

    Lightning cable

  4. D

    Barrel connector cable

Show answer and explanation

Correct answer: A

Explanation

Desktop computers require a specific type of power cable to connect to a power source. The C13/C14 power cord, also known as an IEC cable, is the industry standard for desktop computers as it can handle the required voltage and fits standard power supply units (PSUs). Understanding the different types of power cables ensures proper troubleshooting and safe operation of devices.

  • A. Correct.

    C13/C14 power cords are the standard power cables used to connect desktop computers and monitors to power outlets. They are commonly known as IEC power cables.

  • B. Incorrect.

    USB-C power cables are typically used for charging modern laptops, tablets, and smartphones, not desktop computers.

  • C. Incorrect.

    Lightning cables are proprietary Apple cables used to charge and transfer data for Apple devices like iPhones and iPads, not for desktop computers.

  • D. Incorrect.

    Barrel connector cables are commonly used for powering small devices like external hard drives, routers, or some laptops, but they are not used for desktop computers.

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