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单选题
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.
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更多 “单选题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.” 相关考题
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After a technician replaces a laptop display, the technician now notices that the wireless no longer works. Which of the following would be the MOST likely cause?()
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After a technician replaces a laptop display, the technician now notices that the wireless no longer works. Which of the following would be the MOST likely cause？（）A、The wireless switch was damaged during the display installation.B、The network card has failed.C、The new display is interfering with the wireless signal.D、The antenna connector was not reconnected.
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A user replaces a laptop’s wireless PCMCIA card with a different vendor’s card. All of the new card configuration steps have been followed. The OS sees all known wireless networks but cannot connect to the user’s network. Which of the following is the MOST likely reason for this behavior?（）A、DMZ is enabled.B、MAC filtering is enabled.C、WEP is being used.D、SSID broadcast is disabled.
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A customer, who brings their laptop to work on a daily basis, calls to ask for the best way to add USB ports and an additional network card to their laptop. Which of the following would meet the user’s requirements?（）A、Docking stationB、Self powered USB hubC、KVM switchD、Non-powered USB hub
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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.
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Which of the following is the MOST likely cause of a low wireless signal after an internal wireless adapter on a laptop was replaced?（）A、The wireless card must be calibrated to the laptop.B、The correct preshared encryption key must be installed to boost the signal.C、The MAC address of the new wireless card will have to be added to the WAP to get the full signal.D、The antenna wires for the wireless card were not attached.
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A laptop will not output to a connected projector. Which of the following steps should a technician take FIRST?（）A、Press the appropriate function + monitor key.B、Adjust the BIOS settings for external display.C、Replace the video card on the laptop.D、Update video drivers for the video card.
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After swapping an internal wireless card on a laptop with an identical model, the technician notices that the wireless does not work. Which of the following would be the MOST likely cause?（）A、Antennae is not connectedB、Wireless card is defectiveC、Drivers needs to be updatedD、OS needs to be updated
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考题
A technician is troubleshooting a WLAN card in a laptop. The wireless infrastructure is 802.11g. The WLAN card is showing connected at 11Mbps. Which of the following would be the BEST reason why the WLAN 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.
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考题
单选题A laptop will not output to a connected projector. Which of the following steps should a technician take FIRST?（）A
Press the appropriate function + monitor key.B
Adjust the BIOS settings for external display.C
Replace the video card on the laptop.D
Update video drivers for the video card.
考题
单选题A technician has replaced a video card with another manufacturer’s video card. The driverinstallation does not complete. Which of the following steps should the technician take FIRST?（）A
Roll back the driver.B
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Delete the monitor.D
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考题
单选题A user replaces a laptop’s wireless PCMCIA card with a different vendor’s card. All of the new card configuration steps have been followed. The OS sees all known wireless networks but cannot connect to the user’s network. Which of the following is the MOST likely reason for this behavior?（）A
DMZ is enabled.B
MAC filtering is enabled.C
WEP is being used.D
SSID broadcast is disabled.
考题
单选题After swapping an internal wireless card on a laptop with an identical model, the technician notices that the wireless does not work. Which of the following would be the MOST likely cause?（）A
Antennae is not connectedB
Wireless card is defectiveC
Drivers needs to be updatedD
OS needs to be updated
考题
单选题A technician is troubleshooting a WLAN card in a laptop. The wireless infrastructure is 802.11g. The WLAN card is showing connected at 11Mbps. Which of the following would be the BEST reason why the WLAN 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.
考题
单选题A technician is trying to install a previous-generation expansion card into their new laptop.However, the card refuses to fit into the expansion slot. Which of the following is MOST likely the reason?（）A
The card needs to have the compatibility jumpers set before it can be installed into the system.B
The card is a PCI Express card and the laptop supports pcmica.C
The expansion slot needs to be enabled in theblos first.D
The card is a PCMCIA card and the laptop supports PCI Express cards.
考题
单选题While performing a preventative maintenance check on a personal computer, a technician notices thatseveralunused expansion card slots have open ports. Which of the following BEST describes why the covers for these card slots should be reinstalled?（）A
Help limit radio frequency interference (RFI) inside the case.B
Help ensure proper air flow through the case.C
Help prevent moisture buildup in the case.D
Help limit electrostatic discharge (ESD) inside the case.
考题
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Docking stationB
Self powered USB hubC
KVM switchD
Non-powered USB hub
考题
单选题A technician replaces a computer’s NIC with a wireless card. The user wants to save the NIC.Which of the following should the technician use to preserve the NIC? （）A
ESD matB
ESD wrist strapC
Sealable plastic bagD
Anti-static bag
考题
单选题A technician is troubleshooting a WLAN card in a laptop. The wireless infrastructure is 802.11g. The WLAN card is showing connected at 11Mbps. Which of the following would be the BEST reason why the WLAN 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.
考题
单选题After a technician replaces a laptop display, the technician now notices that the wireless no longer works. Which of the following would be the MOST likely cause？（）A
The wireless switch was damaged during the display installation.B
The network card has failed.C
The new display is interfering with the wireless signal.D
The antenna connector was not reconnected.
考题
单选题Which of the following is the MOST likely cause of a low wireless signal after an internal wireless adapter on a laptop was replaced?（）A
The wireless card must be calibrated to the laptop.B
The correct preshared encryption key must be installed to boost the signal.C
The MAC address of the new wireless card will have to be added to the WAP to get the full signal.D
The antenna wires for the wireless card were not attached.
考题
单选题Which of the following expansion slots would be BEST for a fiber network card？（）A
ISAB
PCIxC
PCIeD
AGP
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