IT Essential Final Exam - Smkn1 Bongas

The camera is considered an input device because it captures visual data and sends it to the computer for processing. The MIDI interface is also an input device as it allows musical instruments to connect to a computer and transmit musical data.

The three peripherals that would be considered output devices are display monitor, projector, and speaker. A display monitor is used to visually output information, such as images or text. A projector is also used for visual output, projecting images onto a larger screen or surface. A speaker is an audio output device, used to produce sound or music. These devices take information from a computer or other device and provide output in the form of visuals or audio.

The question "What happens when the PC is powered on?" is a proper open-ended question because it allows the customer to provide a detailed response and share their experience or observations about what occurs when they turn on their computer. This question encourages the customer to provide more information and can help the technician gather relevant data to diagnose and solve any potential issues.

Using an antistatic mat when working on the internal components of a computer helps to reduce the chance of computer components being damaged by electrostatic discharge (ESD). ESD can occur when there is a buildup of static electricity on the technician's body or tools, and if discharged onto sensitive computer components, it can cause permanent damage. The antistatic mat provides a conductive surface that helps to dissipate any static electricity, preventing it from damaging the computer components.

After cleaning the desk area, the user should remove all dust and debris from the computer using a can of compressed air. This is the most appropriate action because compressed air is an effective tool for removing dust and debris from the computer's internal components without causing any damage. It allows for a thorough cleaning by blowing away particles that may be stuck or embedded in hard-to-reach areas. Using a can of compressed air is a safe and efficient method to ensure the computer remains free from dust and debris, which can cause overheating and other performance issues.

The correct course of action is to not attempt to repair the power supply and instead replace it with a power supply of equal or greater wattage. This is because if the power supply is not supplying power to the hard drives, it is likely faulty and cannot be repaired. Replacing it with a power supply of equal or greater wattage ensures that the computer will receive the necessary power to function properly.

When selecting a new CPU, two motherboard features that must be compatible are the chip set and socket type. The chip set is responsible for managing communication between the CPU, memory, and other peripherals, so it needs to be compatible with the CPU. The socket type refers to the physical connector on the motherboard that the CPU fits into, so the CPU and motherboard must have matching socket types for proper compatibility. The other options, such as number of expansion slots, quantity of memory, and number of USB interfaces, are not directly related to CPU compatibility.

When updating RAM, three items that should be considered are:
1. The memory must be compatible with the motherboard. This is important as the motherboard determines the type and maximum capacity of RAM that can be supported.
2. The new memory must be the same type as the memory already present. Mixing different types of RAM can lead to compatibility issues and may not work properly.
3. The speed of the new memory must be the same or faster than the existing memory. Mismatched speeds can result in performance issues or the RAM not functioning correctly.

A floppy disk drive should be cleaned using a drive cleaning kit. This is because a drive cleaning kit is specifically designed to safely and effectively clean the delicate components of a floppy disk drive. Using a vacuum cleaner or spraying a cleaner directly into the drive can potentially cause damage to the drive and its components. Removing heads and cleaning with a mild detergent is not recommended as it requires disassembling the drive, which can be complex and may result in further damage if not done correctly.

The best way to determine if a hard drive cable is properly plugged in is to unplug the cable and then plug it in again. This ensures that the connection is secure and eliminates any possibility of a loose or partially connected cable. By physically removing and reinserting the cable, you can guarantee that it is properly plugged in and functioning correctly.

When servicing a laser printer, technicians need to be cautious about two potential dangers. The first danger is electrical shock, which can occur if the technician comes into contact with live electrical components or fails to follow proper safety procedures. The second danger is burns, which can result from touching hot surfaces or components within the printer. Both of these dangers can cause harm to the technician and should be avoided by taking necessary precautions during the servicing process.

Using compressed air and lint-free cotton swabs is the recommended way to clean an optical drive. Compressed air can be used to remove dust and debris from the drive, while lint-free cotton swabs can be used to gently clean the lens and other delicate components. This method is effective in removing dirt without causing damage to the drive. Using cotton swabs and denatured alcohol may be too harsh for the delicate components of the optical drive. Using a vacuum cleaner or glass cleaner and a lint-free cloth may also cause damage to the drive.

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SCSI (Small Computer System Interface) is the correct answer because it is a type of hard drive cable that connects drives in a daisy chain series. In a SCSI daisy chain, each drive is connected to the next drive in the chain, allowing multiple drives to be connected to a single SCSI controller. Manual termination at each end of the daisy chain is required to prevent data corruption, as it ensures that the signal is properly terminated and prevents signal reflections that can cause data errors. PATA, SATA, and USB are not daisy chainable and do not require manual termination, while ATA is a general term that includes both PATA and SATA.

The technician should hold the can of compressed air upright to avoid fluid leakage. If the can is held upside down, the propellant in the can may be released along with the air, potentially causing damage to the PC. Holding the can upright ensures that only the compressed air is released, allowing for safe and effective cleaning of the PC without any risk of fluid leakage.

The most likely cause of the problem is a hard drive failure. This is indicated by the fact that the technician was unable to boot the computer into Safe Mode, which suggests that there may be an issue with the operating system or files on the hard drive. The successful boot using a Windows boot disk also supports this explanation, as it indicates that the computer's hardware is functioning properly but there may be an issue specifically with the hard drive.

The technician suspects that the hard drive is beginning to fail because it is making unusual noises, which is an indication of a potential hardware issue. Additionally, the gradual increase in the number of bad sectors on the hard drive supports this suspicion as it suggests that the drive is experiencing physical damage or deterioration over time.

Adding an additional hard drive to a computer can provide several benefits. Firstly, it can be used to store the system swap file, which is a portion of the hard drive that is used as virtual memory when the computer's physical memory is full. This helps improve the overall performance of the system. Secondly, it can be used to implement RAID (Redundant Array of Independent Disks) and provide fault tolerance. RAID allows for data redundancy and increased data protection in case of a hard drive failure. Lastly, an additional hard drive can be used to install a second operating system, allowing for dual-booting and greater flexibility in terms of software usage.

The most likely cause of the computer not booting normally but being able to boot into Safe Mode is a driver issue. Safe Mode loads only essential drivers and services, bypassing any non-essential or problematic drivers. This suggests that one of the installed drivers is causing the issue, possibly due to corruption or incompatibility. By booting into Safe Mode, the computer can temporarily disable the problematic driver, allowing it to start up.

To solve the problem of the system not starting after installing a new processor, the technician should first reseat the processor. This involves removing and reinstalling the processor to ensure it is properly connected. The technician should then verify the compatibility of the CPU with the motherboard and BIOS version. This is important as an incompatible CPU may not work with the system. By following these steps, the technician can troubleshoot and potentially resolve the issue with the system not starting.