CompTIA认证考试单项选择题每日一练(2018.10.03)

单项选择题
A group of users report that they can access local resources but cannot access the Internet. Which of the following should the administrator use to test connectivity?（）
A. tracert
B. msconfig
C. route
D. net use
单项选择题
Which of the following desktop hardware should a technician be MOST concerned with disposing of correctly？（）
A.batteries
B.power cords
C.disk drives
D.hard drives
单项选择题
After removing several obsolete programs from a PC, a user is experiencing slower than usuallyprocessing times. Which of the following would be the BEST way to speed up the processing? （）
A. Use an external hard drive.
B. Defrag the hard drive.
C. Add more RAM to the computer.
D. Install a larger hard drive.
单项选择题
After installing a new optical drive into a workstation, which of the following will ask for anacknowledgement?（）
A. IRQ Manager
B. BIOS
C. Device Manager
D. Hardware Compatibility List
单项选择题
A new server was installed. Most clients are located in the same subnet as the server and can successfully access the server. Clients located on different subnets have been unable to access the server， but have no trouble accessing other servers on their subnet. Which of the following is the reason that these clients are unable to access the server？（）
A. DHCP has assigned the wrong addresses.
B. Incorrect default gateway on the server.
C. DNS entries were not created.
D. WINS server is not responding.