Cisco Networking Academy: IT Essentials: PC Hardware and Software (Chapters 1-8) – Flashcards
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Which device can protect computer equipment from brownouts by providing a consistent quality of electrical power?
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surge suppressor AC adapter SPS *UPS
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What are two safety hazards when dealing with laser printers? (Choose two.)
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*hot components unwieldy card cages *high voltage heavy metals proprietary power bricks
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What safety hazard might occur if a partially filled aerosol can is exposed to excessive heat?
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*explosion breathing hazard lethal voltage potential lead poisoning
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Which tool would be used to scan Windows critical system files and replace any corrupted files?
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Defrag Chkdsk Fdisk *SFC
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What would make it easier for a technician to troubleshoot a problem that has been previously solved by another technician?
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online forum of manufacturer online computer manual *centralized closed trouble tickets personal troubleshooting journal
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What is a proper directive for using a can of compressed air to clean a PC?
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*Do not spray the compressed air with the can upside down. Use a long, steady stream of air from the can. Spray the CPU cooling fan with the compressed air to verify that the fan blade is spinning freely. Do not use compressed air to clean a CPU fan.
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Which type of fastener is loosened and tightened with a hex driver
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cross head screw *six sided bolt slotted screw torx bolt
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A technician accidentally spills a cleaning solution on the floor of the workshop. Where would the technician find instructions on how to properly clean up and dispose of the product?
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the regulations provided by the local occupational health and safety administration the insurance policy of the company *the safety data sheet the local hazardous materials team
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What is an accepted method for cleaning computer components?
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using ammonia to clean the LCD screen using rubbing alcohol to clean component contacts *using glass cleaner on a soft cloth to clean the outside of the mouse using a lint-free cloth to remove dust inside the computer case
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What tool would be used to determine which network port attaches to a specific office jack?
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punch down tool loopback adapter *toner probe crimper
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Which tool can be used to take resistance and voltage measurements?
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loopback plug cable tester power supply tester *multimeter
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Which tool can protect computer components from the effects of ESD?
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SPS surge suppressor *antistatic wrist strap UPS
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Which two devices commonly affect wireless networks? (Choose two.)
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home theaters incandescent light bulbs *microwaves external hard drives *cordless phones Blu-ray players
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What three guidelines should be followed to provide safe conditions when computer equipment is being repaired? (Choose three.)
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*Do not open the power supply. Have all of your extra parts, screws, meters, and tools beside the chassis ready for use. *Bend your knees when lifting heavy objects. Ensure that your ID badge is around your neck and visible. Do not wear loose jewelry unless it is gold, because gold does not conduct electricity. *Turn off the power to the printer and computer before beginning. If a screwdriver is unavailable, use a knife with a sharp point to loosen screws.
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Which statement describes the term ESD?
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It is a type of interference caused by electrical motors. *It is the sudden discharge of static electricity that can adversely affect a component. It is a measurement of the current flowing though electrical devices. It is a device that supplies a constant level of electrical power to a computer.
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Which tool would be used to create a partition on a hard drive?
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*Disk Management Format Chkdsk Defrag SFC
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A technician should keep a personal _______ where all steps taken to repair a computer problem are noted including any configuration changes made.
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Journal
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For the first ordered part (Athlon x4 860k 3.7 GHz), which installation step will be applicable for the technician? 1) Athlon x4 860k 3.7 GHz 2) Gigawhiz GA-A239VM (does not include USB 3.1 front panel connectors) 3) HorsAir DDR3 8 GB 4) ATX with up to three 3.5" drive bays 5) Eastern Divide 1 TB 7200 RPM 6) Zoltz 550 W
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Align the notches on the module to the keys in the slot and firmly press straight down. Align the item with the standoffs in the case. Insert the item into the appropriate bay. *Secure the latch plate by closing the load lever.
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Refer to the exhibit. For the second ordered part (the Gigawhiz GA-A239VM, which does not include USB 3.1 front panel connectors), which installation step will be applicable for the technician? 1) Athlon x4 860k 3.7 GHz 2) Gigawhiz GA-A239VM (does not include USB 3.1 front panel connectors) 3) HorsAir DDR3 8 GB 4) ATX with up to three 3.5" drive bays 5) Eastern Divide 1 TB 7200 RPM 6) Zoltz 550 W
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*Align the item with the standoffs in the case. Secure the latch plate by closing the load lever. Attach the device to the case and secure the screws so the internal fan does not vibrate. Align the notches on the module to the keys in the slot and firmly press straight down.
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Refer to the exhibit. What is the fourth ordered part (the ATX with up to three 3.5" drive bays)? 1) Athlon x4 860k 3.7 GHz 2) Gigawhiz GA-A239VM (does not include USB 3.1 front panel connectors) 3) HorsAir DDR3 8 GB 4) ATX with up to three 3.5" drive bays 5) Eastern Divide 1 TB 7200 RPM 6) Zoltz 550 W
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hard drive motherboard CPU *case
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Refer to the exhibit. Which part should be tightly screwed into the case so that fan vibrations do not loosen it? 1) Athlon x4 860k 3.7 GHz 2) Gigawhiz GA-A239VM (does not include USB 3.1 front panel connectors) 3) HorsAir DDR3 8 GB 4) ATX with up to three 3.5" drive bays 5) Eastern Divide 1 TB 7200 RPM 6) Zoltz 550 W
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*part 6 part 1 part 5 part 3
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Refer to the exhibit. After building the computer, the technician powers on the computer. The system beeps several times. Which component caused the beeps and where is this component located? (Choose two.) 1) Athlon x4 860k 3.7 GHz 2) Gigawhiz GA-A239VM (does not include USB 3.1 front panel connectors) 3) HorsAir DDR3 8 GB 4) ATX with up to three 3.5" drive bays 5) Eastern Divide 1 TB 7200 RPM 6) Zoltz 550 W
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CMOS *BIOS hard drive *motherboard Event Viewer timer
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What indicates that the charge on the CMOS battery could be getting low?
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Performance while accessing files on the hard drive is slow. A beep error code occurs during POST. *The computer time and date are incorrect. The computer fails to boot.
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What are two examples of settings that can be changed in the BIOS setup program? (Choose two.)
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swap file size *boot order drive partition size device drivers *enabling and disabling devices
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What is an advantage of using signed drivers?
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They are guaranteed to work with all operating systems. They never need upgrading. *They are verified to be compatible with the operating system. They are guaranteed by the manufacturer to work with any hardware. They are free of errors.
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What should be used to clean the base of the CPU heat sink prior to reinstallation?
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rubbing alcohol thermal compound water *isopropyl alcohol
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What should be done prior to the installation of RAM onto the motherboard?
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Populate the center memory slots first before inserting the new RAM. Change the voltage selector to meet with the voltage specification of the RAM. *Consult the motherboard documentation or website of the manufacturer to ensure that the RAM is compatible with the motherboard. Ensure the memory expansion slot tabs are in the locked position before inserting the RAM module.
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A motherboard has a 24-pin socket for the main power connector. Which ATX power supply connector will work?
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*20-pin connector 18-pin connector 12-pin connector 16-pin connector
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When mounting a motherboard in a computer case, what is used to prevent the motherboard from touching the bottom of the case?
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*standoffs silicon spray ground-fault isolators grounding straps
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Where is the saved BIOS configuration data stored?
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*CMOS hard drive cache RAM
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Which procedure is performed last when installing a new motherboard?
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Secure the expansion cards. *Connect the peripheral devices. Install the I/O shield. Tighten the motherboard screws.
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Which website should a technician consult to find instructions for updating the BIOS on a computer?
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*motherboard manufacturer case manufacturer operating system developer CPU manufacturer
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Which definition describes the term "overclocking"?
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modifying the motherboard clocking crystal to increase the timing signals changing the bus speed of the motherboard to increase the speed of attached adaptors replacing slower SDRAM with faster memory *increasing the speed of the CPU beyond the recommendations of the manufacturer
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What is a symptom of a failing power supply?
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The power cord will not attach properly to either the power supply or wall outlet or both. The computer displays a POST error code. The display has only a blinking cursor. *The computer sometimes does not turn on.
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A technician helps a customer to add a new 2 GB RAM module to a workstation that currently has one 2 GB RAM module installed. Three empty RAM slots are available. However, only 2 GB of RAM is reported by the BIOS after the new RAM module is added. What are two procedures that the technician should perform to pinpoint or solve the problem? (Choose two.)
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Replace with two 1 GB RAM modules. *Make sure the new RAM module is seated properly. Upgrade the operating system to Windows 7 to support more RAM. Check the manufacturer website for a BIOS patch. *Test the new RAM module on another workstation.
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Which procedure is recommended when cleaning inside a computer?
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Invert the can of compressed air while spraying. Clean the hard drive heads with a cotton swab. Remove the CPU before cleaning. *Hold the CPU fan to prevent it from spinning and blow it with compressed air.
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What component is most suspect if a burning electronics smell is evident?
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hard drive RAM module *power supply CPU
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What method should be used by a technician to determine the exact cause of a problem?
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start with most complex and most difficult probable causes to eliminate start with what the customer thinks is the problem test theories of probable cause all at the same time *start and eliminate the quickest and easiest probable causes
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An employee mentions that opening a large document file is taking longer than usual. The desktop support technician suspects that there might be a fault in the hard disk. What should the technician do next?
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*Back up the user data from the workstation. Replace the hard disk with a new one to pinpoint the exact problem. Perform the disk cleanup procedure. Contact a data recovery company for service.
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During what step in the troubleshooting process does the technician demonstrate to the customer how the solution corrected the problem?
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*Document the findings, actions, and outcomes. Establish a plan of action to resolve the problem. Establish a theory of probable cause. Verify full system functionality.
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Which task should be performed on a hard drive as part of a preventive maintenance plan?
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*Ensure cables are firmly connected. Ensure the disk spins freely. Clean the read and write heads with a cotton swab. Blow out the inside of the drive with compressed air to remove dust.
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An employee reports that the output of a workstation display is distorted. The technician checks the manufacturer website and downloads the latest version of the video driver. After the video driver is installed, what should the technician do next?
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Log the previous and current version numbers of the video driver. Move the display card to another slot to see if the video performs better. Schedule the next system checkup with the employee. *Open a video editing application to verify the video performance.
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After a problem is identified, what is the next step for the troubleshooter?
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*Establish a theory of probable causes. Document the findings. Verify the solution. Determine the exact cause. Implement a solution.
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A user has noticed that the hard drive LED on the front of the computer has stopped working. However, the computer seems to be functioning normally. What is the most likely cause of the problem?
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*The hard drive LED cable has come loose from the motherboard. The motherboard BIOS needs to be updated. The hard drive data cable is malfunctioning. The power supply is not providing enough voltage to the motherboard.
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A user has just upgraded the CPU in a PC. After powering on, the computer boots but does not display the correct information about the new CPU while booting. What is the most likely cause of the problem?
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*The motherboard has incorrect BIOS settings. More RAM needs to be added to support the faster CPU. The CPU needs to be overclocked for it to show up correctly. The operating system needs to be upgraded.
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What is the best way to determine if a CPU fan is spinning properly?
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Spray compressed air on the fan to make the blades spin. Spin the blades of the fan quickly with a finger. *Visually inspect the fan when the power is on to ensure it is spinning. Listen for the sound of the fan spinning when the power is on.
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Which cleaning tool should be used to remove dust from components inside a computer case?
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cotton swabs *compressed air duster damp cloth
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What is a primary benefit of preventive maintenance on a PC?
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It simplifies PC use for the end user. It assists the user in software development. *It extends the life of the components. It enhances the troubleshooting processes.
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In which step of the troubleshooting process would a technician have to do more research on the Internet or within the computer manual in order to solve a problem?
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Test the theory to determine the cause. Identify the problem. Document findings, actions, and outcomes. *Establish a plan of action to resolve the problem and implement the solution. Verify full system functionality and, if applicable, implement preventive measures.
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A technician is attempting to create multiple partitions on a hard disk that is using the boot sector standard that supports a maximum partition size of 2TB. What is the maximum number of primary partitions allowed per hard drive?
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1 2 *4 32 16 128
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What is the function of the Windows Compatibility Center?
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to run a scan on a system to detect incompatible software and hardware to prepare an operating system with different hardware configurations so that the operating system can be installed on multiple computers to migrate user files and settings from one computer to another *to check online for the compatibility of software and hardware with different versions of the Windows operating system
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What contains information on how hard drive partitions are organized?
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*MBR CPU BOOTMGR Windows Registry
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Which term best describes the process of breaking a program into smaller parts that can be loaded as needed by the operating system?
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multiprocessing multitasking​ *multithreading​ multiuser​
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What are two ways that network operating systems (NOS) differ from desktop operating systems? (Choose two.)
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Network operating systems support a single user, but desktop operating systems can support many users. Network operating systems have limited account user management capabilities, but desktop operating systems can manage many user accounts. Network operating systems enable files and folders to be shared on a network, whereas desktop operating systems can not share files or folders. *Network operating systems have strong security and account management capability, but desktop operating systems have limited security and account management capability. *Network operating systems can support many users at the same time, but desktop operating systems can only support a limited number of users at a time.
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Hard drive __________ are complete circles on one side of a hard disk platter.
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tracks
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Which free Microsoft utility can scan Windows 7 for hardware and software incompatibility issues?
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Windows Easy Transfer *Upgrade Advisor Windows Compatibility Center Microsoft System Preparation tool
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What term is used to describe a logical drive that can be formatted to store data?
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sector track cluster *partition volume
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What type of disk volume stores data in stripes on multiple physical disks and uses parity for each stripe to provide fault tolerance?
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*RAID 5 mirrored spanned striped
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Which key, when pressed during the boot process, will allow the user to choose to start Windows in safe mode?
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Esc *F8 F1 Windows
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Technicians can use a Microsoft tool called __________ to remove undesired settings when creating a disk image for cloning an operating system.
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sysprep
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Which file system is used to access files over a network?
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NTFS *NFS FAT CDFS
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What are two types of computer user interface? (Choose two.)
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PnP *GUI OpenGL API CLI
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When a user makes changes to the settings of a Windows system, where are these changes stored?
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*Registry Control Panel boot.ini win.ini
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What feature of an operating system allows it to support two or more CPUs?
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multitasking *multiprocessing multiuser support multithreading
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What would be the result of having a corrupt Master Boot Record?
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*The operating system will fail to start. The printer will function incorrectly. The keyboard will be unresponsive to the user. A new application will fail to install.
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Which two statements are true about restore points? (Choose two.)
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A technician should always create them after updating the operating system. *They are useful to restore the computer to an earlier time when the system worked properly. *They contain information about the system and registry settings that are used by the Windows operating system. They recover personal files that have been corrupted or deleted. They back up personal data files.
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What utility is used to show the system resources consumed by each user?
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*Task Manager Device Manager User Accounts Event Viewer
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What command would allow a technician to receive help with the command-line options that are used to schedule a program to run at a specific time?
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HELP AT *AT /? ASK AT HELP CMD ?
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A help desk technician is talking to a user to clarify a technical problem that the user is having. What are two examples of open-ended questions that the technician might use to help determine the issue? (Choose two.)
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*What happens when you try to access your files? Has anyone else used the computer recently? Can you boot up in safe mode? *What updates have you performed lately? Can you boot the operating system?
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Which of these programs is an example of a Type 2 hypervisor?
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OpenGL DirectX Windows XP Mode *Virtual PC
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What is the minimum amount of system RAM that is required to run the Windows 8 Hyper-V virtualization platform?
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*4 GB 512 MB 8 GB 1 GB
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A technician has installed a third party utility that is used to manage a Windows 7 computer. However, the utility does not automatically start whenever the computer is started. What can the technician do to resolve this problem?
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*Change the startup type for the utility to Automatic in Services. Uninstall the program and then choose Add New Programs in the Add or Remove Programs utility to install the application. Set the application registry key value to one. Use the Add or Remove Programs utility to set program access and defaults.
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A technician is having difficulty resolving what appears to be a Windows 7 problem. Previously documented known solutions did not work and neither Device Manager nor Event Viewer provided useful information. Which two actions should the technician try next? (Choose two.)
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Reinstall the operating system. *Check any manuals that relate to the hardware and software. Use the recovery CD to restore the operating system. Ask the customer for any idea about what may be wrong. *Check the Internet for possible solutions.
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A user notices that a PC is running slowly and exhibits a delayed response to keyboard commands. What is a probable cause of this symptom?
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A recently installed device driver is incompatible with the boot controller. *A process is using most of the CPU resources. The video card does not support the resolution that is being used. One or more program files have been deleted.
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A user has a netbook that has the maximum amount of RAM that can be installed (1 GB), but the user performance is suffering. What Windows system utility can be used to help in this situation?
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HomeGroup Action Center *ReadyBoost Device Manager
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What is a characteristic of a virtual machine on a PC?
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*A virtual machine runs its own operating system. A virtual machine needs a physical network adapter to connect to the Internet. The number of virtual machines that can be made available depends on the software resources of the host machine. A virtual machine is not susceptible to threats and malicious attacks.
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Which system tool can show hardware and software information for both local and remote computers?
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Performance Monitor Component Services System Configuration *System Information Chkdsk
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Enabling and disabling the pop-up blocker in Internet Explorer is accomplished through which Internet Options tab?
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Advanced General Security *Privacy
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A workstation is configured with an advanced video capture card that was added to the system. After the OS was updated from Windows 7 to Windows 8.1, the video card stopped working. What should be done to address this problem?
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Update firmware on the workstation. Update the video editing software. Update Windows 8.1. *Update the driver.
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At which layer of the TCP/IP model does routing take place?
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application network access transport *internet
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What is the color of the wire for pin 1 in the T568B Ethernet wiring standard?
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*orange/white blue/white brown brown/white orange green/white green blue
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What is the proper CIDR prefix notation for a subnet mask of 255.0.0.0?
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*/8 /24 /32 /16
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A company is expanding its business to other countries. All branch offices must remain connected to corporate headquarters at all times. Which network technology is required to support this scenario?
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LAN WLAN MAN *WAN
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Which term is used to describe any device on a network that can send and receive information?
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server console peripheral workstation *host
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Which standards organization publishes current Ethernet standards?
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ANSI CCITT EIA/TIA *IEEE
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Which type of network will extend a short distance and connects printers, mice, and keyboards to an individual host?
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MAN LAN *PAN WLAN
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A switch is a networking device that will record ____________ addresses by inspecting every incoming data frame.
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MAC
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What is the correct compressed format of the IPv6 address 2001:0db8:eeff:000a:0000:0000:0000:0001?
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*2001:db8:eeff:a::1 2001:db8:eeff:a:::1 2001:db8:eeff:a:1 2001:db8:eeff:a::0001
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What reference model divides network communications into seven distinct layers and is used to maintain equipment and application interoperability between different vendors?
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*OSI TIA DoD IEEE 802.3
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How many host addresses are available on a network with a subnet mask of 255.255.0.0?
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16,777,214 1024 *65,534 254
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Which two protocols operate at the transport layer of the TCP/IP model? (Choose two.)
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ICMP FTP *TCP *UDP IP
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Which network device regenerates the data signal without segmenting the network?
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modem switch *hub router
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Which protocol operates at the application layer of the TCP/IP model?
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*HTTP ICMP IP TCP
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What type of networking cable is used by television companies to carry data as electrical signals?
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shielded twisted-pair fiber-optic *coaxial unshielded twisted-pair
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A student is helping a friend with a home computer that can no longer access the Internet. Upon investigation, the student discovers that the computer has been assigned the IP address 169.254.100.88. What could cause a computer to get such an IP address?
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interference from surrounding devices static IP addressing with incomplete information reduced computer power supply output *unreachable DHCP server
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A technician needs to check the system settings on a remote computer to make sure it will be compatible with a new software update that will be sent out. The technician will use an administrator account to log in and start a user session on the remote PC. Which Windows tool will the technician use to accomplish this?
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Windows VPN remote access client Windows file sharing services *Windows Remote Desktop Windows Update Assistant
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Which technology requires customers to be within a particular range of the service provider facility in order to be provided the maximum bandwidth for Internet access?
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cable *DSL ISDN satellite
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The process that a wireless router uses to translate a private IP address on internal traffic to a routable address for the Internet is called __________?
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NAT
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Which network service automatically assigns IP addresses to devices on the network?
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traceroute Telnet DNS *DHCP
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Which cloud computing opportunity would provide the use of network hardware such as routers and switches for a particular company?
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software as a service (SaaS) browser as a service (BaaS) *infrastructure as a service (IaaS) wireless as a service (WaaS)
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What is the difference between a data center and cloud computing?
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Data centers require cloud computing but cloud computing does not require data centers. There is no difference. These terms can be used interchangeably. Of the two, only cloud computing is located off-site. The data center makes use of more devices to process data. *Cloud computing provides access to shared computing resources, while a data center is a facility that stores and processes data.
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A technician wishes to update the NIC driver for a computer. What is the best location for finding new drivers for the NIC?
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the website for Microsoft *the website for the manufacturer of the NIC Windows Update the installation media that came with the NIC the installation media for Windows
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Which security technology is used to passively monitor network traffic with the objective of detecting a possible attack?
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firewall proxy server *IDS IPS
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__________ technology uses different frequencies to transmit multiple signals simultaneously over the same cable.
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Broadband
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A technician has just installed a new NIC in a laptop. When the cable is plugged in, the technician notices that the LEDs on the NIC are green and one LED is flashing. What does this usually signify?
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The NIC is connected to the wrong port on the wireless router. The NIC is doing a POST function to detect possible errors. *The NIC is functioning and there is network activity. The NIC is functioning and the cable is operating at the maximum data rate. The NIC is attempting to establish a VPN connection but the configuration of the NIC is missing security settings.
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Users in a recently installed wireless network are complaining of slow data transfer and frequent loss of connectivity. The technician checks that the wireless security is correctly implemented, and there is no evidence of unauthorized users on the network. Which two problems might the technician suspect? (Choose two.)
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*The wireless signal is too weak. *There is interference from outside sources. The antenna on the access point is too powerful. The DHCP server is faulty. The network passwords need to be reissued to the users.
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Which operation should a network technician perform as a part of regular preventive maintenance procedures on the network?
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*Check the network cable connections in the wiring closet. Verify the bandwidth of the WAN connection to the ISP. Review the access log of the server farm facility. Ensure antivirus definitions are updated to the latest version on servers.
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Which special character must be included at the end of a folder name to identify a folder as an administrative share?
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*$ # * !
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A technician is troubleshooting a computer that has lost connectivity to the network. After data is gathered from the customer, which two tasks should the technician complete next? (Choose two.)
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Repair the network cable. *Verify that the computer has a valid IP address. Try to log in as a different user. *Check that the NIC link light is lit. Verify that the computer has the most up to date version of the OS.
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Which command is used to manually query a DNS server to resolve a specific host name?
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net ipconfig /displaydns tracert *nslookup
