CompTIA exam questions
A technician has just installed two memory modules on a motherboard that supports DDR3 RAM with the bus speed up to 1600 MHz. The specifications of memory are DDR3 1066 MHz for one module and DDR3 1333 MHz for another. On which of the following bus speeds will the system function?
A. 800 MHz
B. 1000 MHz
C. 1066 MHz
D. 1600 MHz
255.255.0.0 is the standard subnet mask for which of the following IP classes?
A. Class A
B. Class B
C. Class C
D. Class D
Which of the following is an advantage of using DHCP for network addressing?
A. Simplified configuration
B. More addresses are available
C. Faster connection speeds
D. Lower latency times
Which of the following can be used as the default gateway for the 192.168.1.0/24 network?
A. 192.168.0.1
B. 192.168.0.255
C. 192.168.1.0
D. 192.168.1.10
When configuring a new hard drive for use in a hot swappable environment, which of the following connection types should be used?
A. PATA
B. eSATA
C. IDE
D. SATA
Which of the following is BEST used for fire safety to prevent toxic fumes during a fire?
A. Multi-mode cables
B. Single-mode cable
C. PVC cables
D. Plenum cables
Which of the following cable types is used to transmit data from a satellite dish to the satellite modem?
A. CAT5e
B. CAT3
C. Fiber
D. RG-6
Which of the following laptop components provides direct electrical supply to illuminate the screen’s image?
A. DC jack
B. CMOS battery
C. Inverter
D. Backlight
A user is notified of file system errors on an external hard drive. Which of the following tools can be used to repair common errors on the drive?
A. chkdsk
B. diskpart
C. format
D. sfc
A technician is troubleshooting performance issues with a desktop PC and hears clicking noises coming from inside the case. Which of the following is the MOST likely cause?
A. Low voltage power supply
B. Failing magnetic hard drive
C. Corrupted Solid State Drive
D. Overheated RAM