单项选择题
A. The floppy drive B. The hard drive C. The CD-ROM drive D. The DVD-ROM drive
A technician is troubleshooting a WLAN card in a laptop...
单项选择题A technician is troubleshooting a WLAN card in a laptop. The wireless infrastructure is 802.11g. TheWLAN card is showing connected at 11Mbps. Which of the following would be the BEST reason why theWLAN card is performing at that speed? （）
A. The WLAN card is 802.11g. B. The WLAN card is 802.11b. C. The WLAN card is 802.11n. D. The WLAN card is 802.11a.
After a technician installs a new CMOS battery on a mot...
单项选择题After a technician installs a new CMOS battery on a motherboard, which of the following will thetechnician have to change? （）
A. Firmware version B. System date/time C. Bus speeds D. Jumper settings
A customer wants to check whether they have the necessa...
单项选择题A customer wants to check whether they have the necessary tools enabled to prevent intrusions andvirus attacks on a Windows Vista workstation. Which of the following tools can be used to display thecurrent configuration? （）
A. Security Center B. Event Viewer Security log C. Windows Defender D. Windows Firewall
