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

第1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.

第2题：

A home user working outside an office reports that their laptop is no longer connecting to theInternet. Which of the following would a technician recommend to check FIRST?（）

• A、Windows Firewall settings
• B、DHCP settings
• C、Disable HomeGroup
• D、Wireless on/off switch

第3题：

A customer reports to Karen, a technician, that he is experiencing problems with the display after his computer is fully booted but reports seeing the BIOS splash screen during boot. Which of the following would MOST likely be the cause?（）

• A、The video cable is incorrectly attached.
• B、A corrupted or incorrect video driver is installed.
• C、An incorrect video card is installed in the computer.
• D、The video card is defective and needs to be replaced.

第4题：

A technician has a laptop in for repair with a consistent video corruption issue. The issue is seen on the local display and on an external monitor. The issue happens on the BIOS setup screen as well as within Windows. Which of the following laptop components is MOST likely failing?（）

• A、VGA port
• B、LCD display
• C、Onboard video card
• D、Inverter

第5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.

第6题：

A technician is working on a SOHO wireless network and notices that the wireless adaptor in the laptop shows excellent connection at 11Mbps. The technician has a wireless N adaptor. Which of the following would BEST describe this connection speed?（）

• A、The laptop is too far away from the WAP.
• B、The WAP is using 802.11a frequencies.
• C、The laptop is only set to allow 802.11n connections.
• D、The technician is on an 802.11b network.

第7题：

A customer’s laptop display panel assembly had just been replaced. The customer notices that the wireless network adapter is enabled but detecting a weak signal. Which of the following is the MOST likely cause?（）

• A、The wireless card needs to be replaced.
• B、The antenna wires are not connected properly.
• C、The wireless drivers need to be updated.
• D、The display panel is defective.

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第13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.

第14题：

A technician installs a new video card in a desktop with onboard video. The technician boots the unit but sees no display. The monitor power light is on and the OS seems to be loading. Which ofthe following is the MOST likely cause?（）

• A、The display is defective.
• B、The video card needs to be flashed.
• C、The internal adapter has not been disabled.
• D、The new video card is defective.

第15题：

A user states that the LCD display on their laptop has intermittent lines on the screen. The technician notices that when the display panel is moved, the line appears and then disappears. Which of the following is the MOST likely cause?（）

• A、The hinge on the display panel is damaged.
• B、The display cable is loose or damaged.
• C、The display panel is defective.
• D、The video controller on the system board is defective.

第16题：

Users are unable to stay connected to the company's wireless network. Several times throughout the day the users' signals are dropped and they are forced to reconnect to the network. A technician determines the network cabling that supplies the WAP has been run inside with several power lines. Which of the following is the MOST likely cause of the network issue?（）

• A、Ashort
• B、Open pairs
• C、ESD
• D、EMI

第17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 connected
• B、Wireless card is defective
• C、Drivers needs to be updated
• D、OS needs to be updated

第18题：

A user states that the wireless on their laptop was working when they where at home, however,now in the office no wireless connection can be made. Which of the following should the technician check FIRST?（）

• A、If the wireless is enabled
• B、If the laptop is connected to the correct gateway
• C、If the SSID is enabled
• D、If the DHCP address scheme is correct

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