A user reports that their PC is making a strange noise. Which of the following is the cause of the problem?（）A、A network cable is vibrating against the system case.B、An internal wire is improperly routed and is hitting the CPU fan.C、The thermal grease on the CPU has dried out and needs to be replaced.D、The CPU needs to be reseated.
A user reports that their PC is making a strange noise. Which of the following is the cause of the problem?（）
- A、A network cable is vibrating against the system case.
- B、An internal wire is improperly routed and is hitting the CPU fan.
- C、The thermal grease on the CPU has dried out and needs to be replaced.
- D、The CPU needs to be reseated.
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A user reports that the wireless network is slow and is able to see and access shared folders that are unknown to the user. Which of the following is the cause of the problem?（）A、The SSID broadcast is disabled.B、Wireless router is improperly configured.C、The user is connecting to the wrong SSIDD、The wireless NIC is defective.
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单选题A user reports that the display on the laptop appears blurred. Which of the following is MOST likely the cause？ （）AThe LCD is not running in its native resolution.BLCD monitors do not appear blurred.CThe drivers are improperly installed.DMore video memory needs to be allocated.
单选题A user is reporting that their computer is making strange noises and randomly powers off. Which of the following tools would MOST likely be used to troubleshoot this problem?（）APOST diagnostic cardBPower supply testerCLoop back plugDCable tester
单选题A user reports that their PC is making a strange noise. Which of the following is the cause of the problem?（）AA network cable is vibrating against the system case.BAn internal wire is improperly routed and is hitting the CPU fan.CThe thermal grease on the CPU has dried out and needs to be replaced.DThe CPU needs to be reseated.
单选题A user reports their system is displaying an error message ‘NTLDR is missing’. Which of the following is the MOST likely cause for this error?（）ABOOT.INI file is configured incorrectlyBCorrupt MBRCBoot sector virusDSystem file is missing components
单选题A user reports that the wireless network is slow and is able to see and access shared folders that are unknown to the user. Which of the following is the cause of the problem?（）AThe SSID broadcast is disabled.BWireless router is improperly configured.CThe user is connecting to the wrong SSIDDThe wireless NIC is defective.
单选题A user reports that they are unable to reach a particular website. The user had no issues reaching the site earlier in the day. Which of the following is the MOST likely cause of the lack of access？（）AThe VLAN is misconfiguredBThe user has an improperly configured NICCThe DHCP server is downDThe DNS server is down
单选题A user reports that they cannot cd to /tmp/application. A system administrator entered the following command： Is -Id /tmp/application drw-r-r- 4 root system 512 Jan 15 14：09 application Which of the following is the most likely cause of the problem（）AThe /tmp/application should be globally writable.BThe /tmp/application directory should be executable.CThe /tmp/application directory should be owned by the user.DThe /tmp/application directory should have the sticky bit set
单选题A user reports that their UPS is making a loud beeping sound. Which of the following would cause this problem?（）AThe UPS is overcharged.BIncorrect wattage on the power supply.CThe UPS battery is not charged.DThe UPS is in power management mode.
单选题A user cannot undock a laptop from the docking station. Which of the following is the MOST likely cause?（）AThe laptop is not turned offBThe power cable is not unpluggedCThe lock button is set to lockDThe ACPI settings are configured improperly
单选题A user states that they cannot access a network shared drive. The technician has verified that the clients network cable is good. The IP address of the machine is 169.254.10.15. Which of the following is the cause of the problem？（）AThe WINS server is not resolving names properly.BThe DNS server is not resolving names.CThe DHCP server is out of IP address leases.DThe hosts file is corrupted.