Download Troubleshooting and Maintaining Computer Hardware and more Exams Computer Networks in PDF only on Docsity!
CompTia A+ 220-1001 Core 1 Certification Practice
Exam 2024-2025. Questions and Correct, Verified
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- ANS A customer who uses a Windows computer recently purchased an inkjet printer from your store. She is now calling to complain that the colors in the photos she printed on her new printer don't match the colors in the original photos created by the photo shop. Which of the following actions will MOST likely resolve the issue?
- ANSUse the Color Management tab of the printer driver to calibrate the driver's color settings. Download and install the latest printer drivers. A few of your employees have complained that their computers sometimes shut down spontaneously. You have noticed that these employees all work in a part of the building where the air condition does not adequately cool the room. These employees also use CPU-intensive programs. You suspect that the spontaneous shutdowns are caused by overheating. Which of the following is the SIMPLEST way to monitor the temperature of the computer's CPU? - ANS A SOHO's connection to the internet is through an antenna that sends and receives a microwave signal to the ISP's antenna. There can be no obstacles on the direct path between the two antennae. Which of the following internet connection types is being used? - ANSLine-of-sight wireless A technician determines that an older network hub that connects 24 workstations is performing poorly due to excessive network collisions. Which of the following network devices would be the BEST replacement? - ANSswitch A technician is replacing a hard drive in a laptop. Which of the following is the FIRST action the technician should perform before opening the laptop case? -
ANSReview the laptop manufacturer's documentation. A technician is replacing a SOHO router and has configured DHCP to assign private IP addresses to hosts on the local network. These hosts can communicate with each other, but users can't browse the internet. Which of the following changes to the SOHO router is MOST likely to restore internet connectivity? - ANSConfigure the SOHO router for NAT A technician is tasked with preparing a conference room so that at least 20 guests will be able to wirelessly connect laptop computers to the company network. Which of the following network devices would be the BEST choice for this connectivity? - ANSAccess point A technician is tasked with replacing a 110-style keystone jack module in a patch panel. Which of the following tools would the technician use to attach the new module to the end of the cable? (Select TWO). - ANScable stripper punchdown tool A technician is unable to install virtualization software on a host computer. The host has more free disk space than required. Which of the following is MOST likely to be the cause? - ANSThe motherboard UEFI/BIOS doesn't support hardware assisted virtualization A technician must press a cable connector's retaining tab to remove a faulty fiber optic network cable. Which of the following connectors does the cable use? - ANSLC A user calls to report that she is experiencing intermittent problems while accessing the wireless network from her laptop computer. She can access the network from her usual office, but today, she is trying to access the wireless network from a conference room, which is across the hall and next to the elevator. Which of the following is the MOST likely cause of her connectivity problem? - ANSInterference is affecting the wireless signal. A user generates printouts consisting of several pages of seemingly random characters every time he prints to a network printer. The printer seems to work fine for all
user sends a print job to a network printer, and it prints page after page of random characters. He calls the help desk, and a technician discovers that the wrong printer driver had been loaded on the user's workstation. The technician loads the correct driver, verifies that the system works correctly, and documents the resolution. Which of the following actions should the technician perform NEXT? - ANSEducate the user as to how the problem was resolved and verify that they are satisfied with the results. After arriving at work, you turn on your computer to begin your day. Instantly, you see smoke and smell a strange odor coming from the computer. Which of the following would be the MOST important action to take? - ANSShut off the system immediately. After arriving in a new city today, a traveling sales team member calls you stating that his wireless connection no longer works. He has checked the wireless configuration, and he knows it to be correct because it was working yesterday. What should you do first? - ANSHave him verify that the wireless card's hardware switch is in the On position. After receiving several complaints from the employees in your company, you start to troubleshoot a laser printer. After a short while, you have concluded that the most probable cause is a dirty drum. Which of the following is the MOST logical reasons for this conclusion? - ANSSpots at regular intervals on the page Builds a table that identifies which MAC addresses are connected to each of its ports - ANSVirtual Switch Can be a stand-alone device or integrated with other peripherals, such as a keyboard. - ANSsmard card reader Can be defined within the virtual switch and associated with specific hosts - ANSVirtual VLAN Can support multiple networks on each of its interfaces, unlike the physical version - ANSVirtual Router Drivers for a small trucking company rely on a smartphone navigation application. When the smartphone loses internet
connectivity, the maps don't update properly. Also, the company pays extra for a premium data service plan to support the application. Which of the following mobile devices could replace the smartphone navigation application, could provide map coverage when internet connectivity is lost, and does not require a data plan?A GPS- enabled personal navigation device - ANSA GPS-enabled personal navigation device Fingerprint scanner. - ANSBiometric scanner Google Cloud, Amazon Web Services, and Microsoft Azure are some of the most widely used cloud storage solutions for enterprises. Which of the following factors prompt companies to take advantage of cloud storage? - ANSGrowing demand for storage Need to bring costs down Graphics tablets mostly used by graphic artists to capture hand-drawn images. - ANSdigitizer Guest operating systems directly access hardware resources in the hypervisor host system. - ANSparavirtualization Implemented within the hypervisor to monitor and filter traffic on the virtual network as it flows between virtual machines - ANSVirtual Firewall Incompletely or improperly doing this can cause errors that appear to be memory-related. - ANShardware installation or removal Memory is not properly seated or missing/the motherboard is defective. - ANSfirst boot of a new computer Most commonly used in retail environments at checkout stands - ANSbarcode reader Only some of the components of a virtual machine are virtualized. - ANSpartial virtualization Operating systems do not need modification to run within virtual machines. - ANSFull virtualization Rachel, an employee in the support department, wants to run a virtual machine on her computer from which she can troubleshoot customer issues. Which of the following must you complete before virtualization will work on her computer? - ANSEnable virtualization support in the BIOS settings. Steve, a computer technician, received a helpdesk ticket for a computer that will not
department. Which of the following technologies should you use to logically isolate the network? - ANSVLANs The virtual machine completely simulates a physical computer system. - ANSFull virtualization This event can require more memory and can cause problems if there is not enough memory when it occurse. - ANSsoftware instalation Used to capture some type of analog signal and convert it into digital data. - ANSdigitizer Used to scan hardware that contains an embedded microchip for authentication. - ANSsmart card reader Used to scan users' unique physical features and use them to verify their identity. - ANSbiometric scanner Uses Ethernet standards to transmit and receive frames on the network - ANSVirtual Network Interface What are the main types of cloud services? - ANSinternal cloud services External cloud services What type of peripheral device is typically found on a laptop computer and allows the user to control the cursor with a finger? - ANSTouch pad When a user rotates a mobile device, the operating system changes the screen orientation so that the display remains upright to the user. Which of the following technologies is uses to detect this device movement? - ANSAccelerometer Gyroscope When you print from your laser printer, the paper contains faint images from previous printouts. Which of the following components is MOST likely the cause? - ANSRubber scraper Fluorescent lamp When you try to boot your computer, it hangs after POST. When you access the UEFI setup program, you see that the date is several years behind, and the time is set to 12:01 a.m. Which of the following is the MOST likely cause of this behavior? - ANSThe motherboard battery has failed. Which component in a laser printer applies toner to the drum, causing the toner to stick to the charged areas on the drum? - ANSDeveloping roller Which connector is used with unshielded twisted pair (UTP) cable? - ANSRJ45 Which of the following (
BEST describes the technology designed to replace the BIOS and (2 is a firmware solution for controlling the startup process and loading the computer operating system into memory? - ANSUEFI Which of the following are antenna types that are commonly used in wireless networks? - ANSOmnidirectional antenna Directional antenna Which of the following are characteristics of the ExpressCard /54 form factor. - ANS34mm wide at the connector Lshape Which of the following best describes how a switch functions? - ANSIt connects multiple cable segments or devices and forwards frames to the appropriate segment. Which of the following cloud computing solutions delivers software applications to a client either over the internet or on a local area network? - ANSSaaS Which of the following is a benefit of good documentation? - ANSIt saves time and money in troubleshooting problems. Which of the following is the most common method for removing RAM from a motherboard? - ANSMove the tabs holding the RAM out of the way; pull straight up to remove the RAM. Which of the following is the MOST likely symptom of a dirty drum or roller in a laser printer? - ANSLines or splotches repeated at regular intervals on the print job. Which of the following protocols do email clients use to download messages from a remote mail server? - ANSPOP3 Which of the following techniques are used in a pharming attack to redirect legitimate web traffic to malicious websites? - ANSExploiting DHCP servers to deliver the IP address of poisoned DNS servers Changing the hosts file of a user's computer Which of the following will ensure optimal system cooling? (Select THREE). - ANSKeep the ambient temperature below 80° F. Bundle cables together and secure unused cables to the case. Leave space between the case and any walls or obstructions. Which of the following wireless communication technologies can be described as follows? • Has a very
You are currently managing a few Apple iPad devices that run the iOS operating system. Which of the following BEST describes the architecture used by this device? - ANSARM You are in a carpeted office lighted by fluorescent bulbs. You are preparing to add memory modules to a user's computer. The user has already unpacked the memory modules and stacked them on top of an old, unused CRT monitor. In this environment, what is the greatest threat to these memory modules? - ANSESD You are installing networking cable in the air space between the ceiling and the roof of a building. Which type of cabling should you use? - ANSPlenum You are trying to troubleshoot a desktop power supply issue using a voltmeter. Which of the following options are the MOST common voltages produced by the power supply? - ANS+/- 5v +/- 12v You have a user who takes his laptop home every day after work. When he's working in the office, the laptop must get an IP address from the DHCP server so you configure it to obtain IP and DNS information automatically. When he's working from home, the laptop must use IP and DNS information that connects with his home network. Which IP addressing method can you use to make sure he gets a network connection at home? - ANSAlternate IP configuration You have a workstation running Windows 10, 64-bit edition. A local printer connected to a USB port is shared so that other users can print to that printer. Users running 32-bit versions of Windows report that they can't install the driver for the shared printer. Users running a 64-bit version of Windows do not have any problems. Which of the following actions will MOST likely fix this problem? - ANSManually install the correct driver on each computer that is having a problem. On your computer, add the x drivers. You have been tasked with designing a workstation that will run VMware Workstation virtualization software. A software engineer will use it to run virtual
machines for application development and testing. Which of the following criteria should MOST likely be included in your design for this system? - ANS64-bit processor with eight cores RAM configured to run in quad-channel mode You have just finished upgrading the 250 W power supply in your desktop computer to a 450 W power supply. Now the BIOS doesn't recognize one of the hard disk drives in the system during POST. Which of the following troubleshooting steps is the BEST to try first? - ANSMake sure that the hard disk is connected to the power supply. You have just installed a new hardware device, upgraded the driver, and installed the custom software that came with the device. Now you can't get the device to work. Which of the following troubleshooting steps is the BEST to try first? - ANSRun any diagnostic software that came with the device. You have subscribed to a cloud-based service to synchronize data between your mobile device and your PC. Before allowing the data to be synchronized, this service uses a process where the cloud service and the client on the mobile device verify each other's security certificates. What is this process called? - ANSMutual authentication You need to create a virtualization environment on your Windows 10 system using Client Hyper-V to test potentially rogue applications that end users' downloads from the internet. Because the applications may be malicious, you need to isolate the virtual machines from your production network and the host system; however, you need the virtual machines to be able to communicate with each other. Which type of virtual network should you implement? - ANSA private virtual network You provide desktop support for a small company. The company has two locations in the same city, but they are several miles away. You get a call from a user who is having problems installing a new device. You try to tell the user how to update the driver for the device over the phone, but he is
downloading a large file through his wireless network card while the system was plugged in at his desk. You've checked the system and determined that the backlight has stopped working. Which of the following is the MOST likely cause? - ANSThe cold cathode fluorescent lamp has burned out and needs to be replaced. The inverter in the LCD assembly has malfunctioned. You're troubleshooting a notebook system that uses a digitizer pad and stylus for user input. The user has complained that the digitizer pad registers stylus registers taps about one inch to the right of where the taps actually occur. Which of the following actions would MOST likely fix this issue? - ANSRecalibrate the digitizer pad. Your company has decided to hire a full-time video editor. You have been asked to find a system with the level of display quality needed by someone who will be working with video all day. Which of the following video card specifications will have the greatest impact on display quality? - ANSRefresh rate Resolution Your company needs to print a lot of high-quality black-and-white text documents. These documents need to be printed as quickly and inexpensively as possible. The printer must also have the capacity to perform duplex printing. Which of the following printers BEST meets the printing requirements for your company? - ANSLaser Your company relocated you to their United Kingdom office in London. You brought your personal computer with you and are in the process of setting it up. Your computer was previously configured to receive 110 V AC, but the electricity in London uses 230 V AC. Which of the following would allow your computer to run on 230 V AC? - ANSToggle the voltage switch on the power supply to the different voltage.
