CompTIA FC0-U21 Online Practice Questions and Exam Preparation

CompTIA FC0-U21 Online Questions & Answers

• Question 1:

  Which of the following software is stored in a computer's read-only memory (ROM) and remains stored in it regardless of whether it is on or off?

  A. Shareware
  B. Firmware
  C. Freeware
  D. Adware
  B. Firmware

• Question 2:

  The local weather report indicates that an electrical storm with severe winds is likely to occur in Nyour area overnight. Which of the following reasonable precautions should you take to protect your computers?

  A. Plug the computers with a voltage regulator.
  B. Unplug the computers.
  C. Turn off the computers.
  D. Plug the computers into a surge suppressor.
  B. Unplug the computers.

• Question 3:

  Which of the following statements is true about modem?

  A. It amplifies the digital signals.
  B. It converts digital signals into analog signals and vice versa.
  C. It converts AC current to DC current and vice versa.
  D. It reduces the noise in analog signal.
  B. It converts digital signals into analog signals and vice versa.

• Question 4:

  Which of the following is a measure of a display system, defined as the ratio of the luminance of the brightest color (white) to that of the darkest color (black)?

  A. Reconnaissance
  B. Contrast ratio
  C. Characterizing
  D. Pixel aspect ratio
  B. Contrast ratio

• Question 5:

  Which of the following identifies a particular 802.11 wireless LAN?

  A. MAC address
  B. CSMACA
  C. SSID
  D. IP address
  C. SSID

• Question 6:

  What should you do to reduce the risk of ESD?

  A. Carry an anti-static wrist strap.
  B. Place a mat on the floor.
  C. Use a screwdriver.
  D. Wear an anti-static wrist strap while working.
  D. Wear an anti-static wrist strap while working.

• Question 7:

  Your customer complains that some of his older Windows XP programs, particularly some games, won't work in Windows Vista. What should you recommend?

  A. That he use the Windows Vista Compatibility Mode.
  B. That he dual boot XP and Vista in order to handle old and new programs.
  C. That he buy Vista versions of those programs.
  D. Unfortunately he won't be able to use those programs.
  A. That he use the Windows Vista Compatibility Mode.

• Question 8:

  Which of the following devices produces a hard copy of documents stored in electronic form?

  A. Desktop
  B. Camcorder
  C. Printer
  D. Scanner
  C. Printer

• Question 9:

  Which of the following switches of the XCOPY command continues to copy files even if errors occur?

  A. /e
  B. /q
  C. /c
  D. /r
  C. /c

• Question 10:

  Which of the following is the minimum level of static charge for a person to feel an electric shock?

  A. 3,000 volts
  B. 4,000 volts
  C. 5,000 volts
  D. 6,000 volts
  A. 3,000 volts