IT Essentials Chapter 4 Questions and Answers Rated A

IT Essentials Chapter 4 Questions and Answers Rated A Which negative environmental factor does cleaning the inside of a computer reduce? dust Which component can be easily damaged by the direct spray of compressed air when cleaning the inside the computer case? fan On the production floor, a furniture plant has laptops for process monitoring and reporting. The production floor environment is around 80 degrees Fahrenheit (27 degrees Celsius). The humidity level is fairly high around 70 percent. Fans are mounted in the ceiling for air circulation. Wood dust is prevalent. Which condition is most likely to adversely affect a laptop that is used in this environment? the dust A vegetable canning plant uses laptops for monitoring of assembly lines. The production environment has an ambient temperature around 75 degrees Fahrenheit (24 degrees Celsius). The humidity level is around 30 percent. Noise levels are high due to the canning machinery. The laptops are in a wooden box that tightly surrounds the laptop on three sides. Which factor is most likely to adversely affect a laptop that is used in this environment? the laptop container A scientific expedition team is using laptops for their work. The temperatures where the scientists are working range from -13 degrees Fahrenheit (-25 degree Celsius) to 80 degrees Fahrenheit (27 degrees Celsius). The humidity level is around 40 percent. Noise levels are low, but the terrain is rough and winds can reach 45 miles per hour (72 kilometers per hour). When needed, the scientists stop walking and enter the data using the laptop. Which condition is most likely to adversely affect a laptop that is used in this environment? the temperature What is part of creating a preventive maintenance plan? documenting the details and frequency of each maintenance task A technician is performing hardware maintenance of PCs at a construction site. What task should the technician perform as part of a preventive maintenance plan? Remove dust from intake fans. Which task should be part of a hardware maintenance routine? Check for and secure any loose cables. During the process of testing a theory of several probable causes to a problem, which should be tested first? the easiest and most obvious Which two items could be used to help establish a plan of action when resolving a computer problem? the computer manual the computer repair history log Which two types of data should be backed up before troubleshooting a computer for a customer? Internet Explorer favorites files documents that are created by the customer A customer reports that recently several files cannot be accessed. The service technician decides to check the hard disk status and the file system structure. The technician asks the customer if a backup has been performed on the disk and the customer replies that the backup was done a week ago to a different logical partition on the disk. What should the technician do before performing diagnostic procedures on the disk? Back up the user data to a removable drive. What is the next step after a possible solution is implemented during a troubleshooting process? Verify the full system functionality and apply maintenance procedures. An employee reports that the antivirus software cannot obtain updates. The support technician notices that the license for the software has expired. The technician adds a new license to the software and completes the update service. What should the technician do next? Run a full virus scan on the computer. What task should be completed before escalating a problem to a higher-level technician? Document each test that was tried. Which step of the six-step troubleshooting process is where a technician would ask the computer user to print a document on a newly installed printer? Verify full system functionality and, if applicable, implement preventive measures. After a technician tests a theory of probable causes, what two actions should the technician take if the testing did not identify an exact cause? Establish a new theory of probable causes. Document each test tried that did not correct the problem. What is the preferred method to remove a disc from an optical drive that fails to eject the disc? Insert a pin into the small hole on the front of the drive. A technician is called to an office where the computer is randomly rebooting. Which of the given components would most likely cause this issue? power supply What would happen if a PC that contains a power supply that does not automatically adjust for input voltage is set to 230 volts and attaches to an outlet in the United States? The PC would not turn on. During the troubleshooting of a PC that will not boot, it is suspected that the problem is with the RAM modules. The RAM modules are removed and put into another PC, which successfully powers on. The RAM modules are then put back into the original PC and it now successfully powers on as well. What was the most likely cause of the problem? The RAM modules were not seated firmly. After a new PCIe video card is added, the computer seems to boot successfully but it will not display any video. The computer was working properly before the new video card was installed. What is the most likely cause of the problem? The saved CMOS settings are set to use the built-in video adapter. A user has opened a ticket that indicates that the computer clock keeps losing the correct time. What is the most likely cause of the problem? The CMOS battery is loose or failing. An employee reports that each time a workstation is started it locks up after about 5 minutes of use. What is the most likely cause of the problem? The CPU is overheating. A user reports that images on a computer display are distorted. The technician sends an intern to look at the problem. What could the technician tell the intern to check first that does not involve hardware replacement or disassembly? display settings A user has connected an external monitor to a laptop VGA port. What is the next step the user should take? Use a Fn key along with a multi-purpose key to send video to the external display.