CompTIA exam questions
A technician is planning a hardware upgrade of a workstation. The technician would like to upgrade the video card, sound card, and NIC and add a USB 3.0 card. The technician is concerned about power consumption by the expansion cards. Which of the following upgrades would MOST likely require also upgrading the power supply?
A. Video card
B. USB 3.0 card
C. Sound card
D. Network card
A user creates a file in presentation software to be shown on a widescreen display. The user would like to adjust the aspect ratio of the slides in the presentation software so they display without extra black areas on the top, bottom, left, or right of the slides. Which of the following aspect ratios would BEST meet this requirement?
A. 4:3
B. 5:4
C. 16:9
D. 256:135
Which of the following describes the function of a switch in a network?
A. Transmits packets it receives to specific connections
B. Converts a packet for transmission from one network to another network
C. Determines whether a packet belongs on an internal or external network
D. Broadcasts packets it receives to all connections
Which of the following would BEST protect equipment from power spikes?
A. Anti-static mat
B. HVAC system
C. Surge suppressor
D. Power strip
Which of the following parts of a laptop screen provides illumination for the LCD?
A. Inverter
B. Backlight
C. Inverter connector cable
D. Bezel
A client has an issue with large files taking a long time to open or save. As time goes by, the issue worsens. The client has hundreds of GBs of files that are still in the process of backing up. The technician has verified that the hard drive is healthy and there are no signs of failure. Which of the following troubleshooting steps should the technician perform NEXT?
A. Install the latest drivers from the hardware vendor.
B. Perform a scan of the drive for file fragmentation.
C. Run chkdsk on the workstation’s hard drive.
D. Reformat the drive and reinstall the OS.
Peter, a user, has installed a new monitor on an existing system. Peter calls a support technician and reports that everything on the new display is fuzzy. Which of the following describes what needs to be changed to correct this issue?
A. The display resolution needs to match the native resolution.
B. The old graphics card does not support the new monitor.
C. The new monitor cable needs to have aluminium cores installed.
D. The new monitor requires updated drivers to be installed.
BIOS upgrades are generally flashed directly onto which chip that sits on the motherboard of a PC?
A. Northbridge controller
B. VRAM
C. EEPROM
D. CMOS Battery
A technician is testing the voltages of connectors on the motherboard. Which of the following connectors would give a reading of 12V?
A. USB
B. Molex
C. SATA
D. IEEE 1394
Which of the following RAM types are compatible with PC2700 and maintain the same performance?
A. PC 2400
B. PC 3200
C. PC2 4200
D. PC2 5300