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 boos

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第2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3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4题：

When verifying a new wireless installation the administrator is unable to see a wireless signal withany wireless laptop. The MOST likely problem is:（）

• A、The SSID is not set to broadcast
• B、An incorrect channel is being used
• C、Incorrect client security settings are configured
• D、Incorrect client configuration on the laptops

第5题：

A user reports sporadic connectivity with their wireless connection. A technician determines the wireless speed reported by the laptop to be 1Mbps. Which of the following is the MOST likely cause of this issue?（）

• A、The client does not support 802.11n
• B、Incorrect frequency on the client is being used
• C、Incorrect encryption on the AP
• D、The client distance from the AP

第6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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第13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14题：

An administrator wants to limit access of a wireless network without requiring authorized users to enter a password or network key. Which of the following methods would MOST likely be implemented on the wireless network?（）

• A、Disable SSID
• B、WPA
• C、MAC filtering
• D、RAS

第15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16题：

A company finished upgrading the wireless encryption to WPA2 Enterprise. The administrator receives a call from a user who is unable to connect to the company wireless. Which of the following is MOST likely causing the connection problem?（）

• A、The laptop is missing the software supplicant
• B、The access point SSID is hidden.
• C、The laptop only supports TKIP and AES encryption,
• D、The access point is on the wrong channel.

第17题：

A technician installed a new video card on a motherboard which has onboard video. When the monitor was plugged into the new card and the power was turned on, a no signal message appeared on the monitor. Which of the following is MOST likely the issue?（）

• A、In the BIOS, the onboard video adapter must be disabled.
• B、The video resolution is set too high.
• C、The LCD panel is defective.
• D、The drivers for the new video card must be installed before installing the card.

第18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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