CompTIA FC0-U21 Online Practice Questions and Exam Preparation

CompTIA FC0-U21 Online Questions & Answers

• Question 11:

  Andrew has a personal computer. One morning, he starts his computer and finds the following error message:

  "CMOS checksum failure."

  What are the most likely causes of this error?

  Each correct answer represents a complete solution. Choose two.

  A. The CMOS battery has failed.
  B. BIOS has become outdated.
  C. The CMOS chip has failed.
  D. Software stored in the CMOS battery is infected by a virus.
  A. The CMOS battery has failed.
  C. The CMOS chip has failed.

• Question 12:

  Which of the following devices uses charge-coupled device (CCD)?

  A. Touch screen
  B. Printer
  C. Touchpad
  D. Image Scanner
  D. Image Scanner

• Question 13:

  You are responsible for technical support at a hospital. Recently, all computers have been upgraded to Windows Vista 64 bit. However, you have a particular custom application that runs only in 32 bit. What should you do?

  A. You will have to uninstall the upgraded operating system.
  B. You will need a 32-bit version of Vista, not 64 bit.
  C. You will need to get the upgraded 64-bit version of the application.
  D. Use compatibility mode to run the 32-bit application.
  D. Use compatibility mode to run the 32-bit application.

• Question 14:

  When working around electrical equipment, including computers, what type of fire extinguisher should you have on hand?

  A. Class A
  B. Class D
  C. Class B
  D. Class C
  D. Class C

• Question 15:

  Which of the following is the form factor of a peripheral interface designed for laptop computers?

  A. PCIe
  B. ATX
  C. PCMCIA
  D. BTX
  C. PCMCIA

• Question 16:

  Which of the following is a light and inexpensive laptop suited for general computing and accessing webbased applications?

  A. Netbook
  B. Desktop
  C. Touchpad
  D. Mainframe
  A. Netbook

• Question 17:

  Identify the Ethernet port in the image given below.

  Click on the correct spot in the image. Doing so will place the target icon at the clicked spot.

  Hot Area:

  

  

• Question 18:

  Which of the following key combinations is used to open the Start menu?

  A. Ctrl+z
  B. Ctrl+r
  C. Ctrl+Alt+z
  D. Ctrl+Esc
  D. Ctrl+Esc

• Question 19:

  How many keys does a computer keyboard have?

  A. 85
  B. 112
  C. 104
  D. 64
  C. 104

• Question 20:

  What are the differences between the microprocessor of a desktop and that of a laptop? Each correct answer represents a complete solution. Choose two.

  A. A laptop microprocessor consumes less power than a desktop microprocessor does.
  B. Unlike laptop microprocessors, a desktop microprocessor has side buses (FSB).
  C. A laptop microprocessor generates less heat than a desktop microprocessor does.
  D. A laptop microprocessor has slower processing speed than a desktop microprocessor has.
  A. A laptop microprocessor consumes less power than a desktop microprocessor does.
  C. A laptop microprocessor generates less heat than a desktop microprocessor does.