CompTIA A+ 220-801practice Exam

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  • 1/100 Questions

    Which of the following disperses heat but requires no moving parts?

    • Heat sink
    • CPU fan
    • Case fan
    • Liquid cooling system
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About This Quiz

This CompTIA A+ 220-801 Practice Exam assesses foundational IT skills, focusing on areas like ESD prevention, heat dispersion, VoIP limitations, and computer hardware interfaces. It is designed for individuals preparing for the A+ certification, enhancing their ability to manage and troubleshoot computer systems.

CompTIA A+ 220-801practice Exam - Quiz

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  • 2. 

    What type of card would you use to record off-air television programs?

    • Wireless card

    • Video capture card

    • POST card

    • PCIe video card

    Correct Answer
    A. Video capture card
    Explanation
    A video capture card is the correct answer because it is specifically designed to record and capture video signals from external devices such as televisions. This type of card allows users to connect their television to their computer and record off-air television programs directly onto their computer's hard drive. Wireless cards, POST cards, and PCIe video cards do not have the necessary functionality or features to record off-air television programs.

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  • 3. 

    What is the most secure type of wireless communications?

    • WPA2

    • WPA

    • WEP

    • SSID

    Correct Answer
    A. WPA2
    Explanation
    WPA2 is the most secure type of wireless communication because it uses the strongest encryption and authentication methods. It provides better security than WPA and WEP, which have known vulnerabilities. SSID, on the other hand, is not a type of wireless communication but rather the name of a wireless network.

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  • 4. 

    Which type of cable needs to be fire resistant?

    • STP

    • Coaxial

    • Plenum

    • UTP

    Correct Answer
    A. Plenum
    Explanation
    Plenum cables need to be fire resistant because they are typically used in plenum spaces, which are areas in a building where air circulates for heating, ventilation, and air conditioning systems. Plenum spaces are considered high-risk areas in terms of fire safety because they can quickly spread fire and smoke throughout a building. Therefore, plenum cables are designed with fire-resistant materials to prevent the spread of fire and reduce the release of toxic fumes in case of a fire in these spaces.

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  • 5. 

    Which of the following would you install into an AGP slot on a motherboard?

    • Memory

    • Video card

    • CPU

    • Soundcard

    Correct Answer
    A. Video card
    Explanation
    An AGP slot on a motherboard is specifically designed to accommodate a video card. This slot provides a high-speed connection between the video card and the motherboard, allowing for efficient communication and enhanced graphics performance. Therefore, installing a video card into an AGP slot is the correct choice as it would enable the computer to display high-quality visuals and handle graphic-intensive tasks effectively.

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  • 6. 

    Which of the following storage media types has no moving parts?

    • Tape drive

    • PATA magnetic hard drive

    • DVD-ROM

    • Flash

    Correct Answer
    A. Flash
    Explanation
    Flash storage is the correct answer because it is a type of non-volatile memory that uses electronic circuits to store and retrieve data. Unlike other storage media types listed, such as tape drives, PATA magnetic hard drives, and DVD-ROMs, flash storage does not have any moving parts, making it more durable and resistant to physical damage. Flash storage is commonly used in devices such as USB drives, solid-state drives (SSDs), and memory cards.

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  • 7. 

    You just arrived at a user's desk and are about to start troubleshooting a problem. The user's desk is covered with papers, and you can see that some of these papers are probably confidential in bature. What should you do first?

    • Work around the papers and resolve the problem

    • Refuse to work until the user has cleared the desk

    • Put the confidential papers in a neat pile

    • Ask the user to clear the desk of confidential papers

    Correct Answer
    A. Ask the user to clear the desk of confidential papers
    Explanation
    It is important to prioritize the security and confidentiality of sensitive information. Asking the user to clear the desk of confidential papers ensures that the sensitive information is protected while troubleshooting the problem. This step demonstrates professionalism and respect for the user's privacy.

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  • 8. 

    What should be used when installing or upgrading a CPU to ensure that heat will be dissipated efficiently through the heat sink.

    • Thermal compound

    • Power supply

    • Case fan

    • Fire extinguisher

    Correct Answer
    A. Thermal compound
    Explanation
    Thermal compound should be used when installing or upgrading a CPU to ensure that heat will be dissipated efficiently through the heat sink. Thermal compound, also known as thermal paste, is a substance that fills in the microscopic gaps between the CPU and the heat sink. It helps to improve thermal conductivity, allowing heat to transfer more effectively from the CPU to the heat sink. This ensures that the CPU remains cool and prevents overheating, which can lead to performance issues or even damage to the CPU.

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  • 9. 

    You need to test a newly installed printer from Windows. Where is the location of the Print Test Page button?

    • In the Print Spooler service

    • In Administrative Tools

    • In the General tab of the printer's Properties page

    • In the Ports tab

    Correct Answer
    A. In the General tab of the printer's Properties page
    Explanation
    The Print Test Page button is located in the General tab of the printer's Properties page. This is where you can access various settings and options related to the printer. The General tab specifically allows you to perform actions such as printing a test page to check the printer's functionality.

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  • 10. 

    A customer wants to control several computers with a single set of input devices. What solution should you provide for them?

    • Barcode reader

    • Smartcard reader

    • Ethernet switch

    • KVM

    Correct Answer
    A. KVM
    Explanation
    A KVM (Keyboard, Video, Mouse) switch is the appropriate solution for a customer who wants to control multiple computers with a single set of input devices. A KVM switch allows the user to switch between different computers using a single keyboard, monitor, and mouse, providing convenience and efficiency. It eliminates the need for multiple sets of input devices and simplifies the management of multiple computers.

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  • 11. 

    Which of the following would best be used for high-end graphics cards?

    • PCIe

    • PCI

    • AGP

    • ISA

    Correct Answer
    A. PCIe
    Explanation
    PCIe (Peripheral Component Interconnect Express) would best be used for high-end graphics cards. PCIe is the latest and fastest interface for connecting peripheral devices to a computer's motherboard. It offers higher bandwidth and data transfer rates compared to older interfaces like PCI, AGP, and ISA. High-end graphics cards require a fast and efficient connection to the motherboard to ensure smooth and high-quality graphics performance, and PCIe provides the necessary capabilities for this purpose.

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  • 12. 

    Your boss asks you to replace his laptop's 500 GB hard drive with a new 640 GB hard drive. What interface would you most likely use?

    • PATA

    • SATA

    • IDE

    • SCSI

    Correct Answer
    A. SATA
    Explanation
    The most likely interface to use when replacing the boss's laptop's hard drive with a new 640 GB hard drive would be SATA. SATA (Serial ATA) is a common interface used for connecting storage devices such as hard drives to computers. It offers faster data transfer speeds and is widely supported by modern laptops and desktops. PATA (Parallel ATA), IDE (Integrated Drive Electronics), and SCSI (Small Computer System Interface) are older interfaces that are less commonly used in modern computers.

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  • 13. 

    Which networking technology has the highest potential throughput?

    • Cable

    • Satellite

    • Fiber

    • DSL

    Correct Answer
    A. Fiber
    Explanation
    Fiber optic technology has the highest potential throughput compared to cable, satellite, and DSL. Fiber optic cables use light signals to transmit data, allowing for faster and more efficient data transfer. This technology offers significantly higher bandwidth and faster speeds, making it ideal for high-demand applications such as video streaming, online gaming, and large file transfers.

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  • 14. 

    You need to retrieve e-mail on a laptop using Microsoft Outlook. Which protocol should you use to retreive the e-mail?

    • SMTP

    • FTP

    • POP3

    • PING

    Correct Answer
    A. POP3
    Explanation
    To retrieve email on a laptop using Microsoft Outlook, the protocol that should be used is POP3 (Post Office Protocol version 3). SMTP (Simple Mail Transfer Protocol) is used for sending email, not retrieving it. FTP (File Transfer Protocol) is used for transferring files, not email. PING is a network utility used to test the reachability of a host on an Internet Protocol (IP) network, and it is not used for retrieving email.

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  • 15. 

    What type of adapter card is used to connect external hard disk drives?

    • ESATA

    • PCIe x16

    • PATA

    • Network

    Correct Answer
    A. ESATA
    Explanation
    eSATA (External Serial Advanced Technology Attachment) is the correct answer. eSATA is a type of adapter card that is specifically designed for connecting external hard disk drives. It provides a fast and reliable connection between the computer and the external hard drive, allowing for high-speed data transfer. PCIe x16 is a type of expansion slot on the motherboard and is not used for connecting external hard drives. PATA (Parallel ATA) is an older technology used for connecting internal hard drives. Network adapters are used for connecting to a network, not for connecting external hard drives.

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  • 16. 

    In which of the following is a CR 20132 CMOS battery usually found?

    • Portable printers

    • Smartphones

    • Bluetooth mice

    • Desktops

    Correct Answer
    A. Desktops
    Explanation
    A CR 20132 CMOS battery is usually found in desktops. Desktop computers have a CMOS (Complementary Metal-Oxide-Semiconductor) battery that is responsible for providing power to the CMOS chip, which stores the computer's BIOS settings. This battery ensures that the BIOS settings are retained even when the computer is turned off or unplugged. Portable printers, smartphones, and Bluetooth mice do not typically have a CMOS chip or require a CMOS battery for operation.

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  • 17. 

    Which types of RAID stripes data across three or more disks along with parity?

    • RAID 0

    • RAID 1

    • RAID 5

    • RAID 10

    Correct Answer
    A. RAID 5
    Explanation
    RAID 5 is the correct answer because it stripes data across three or more disks along with parity. This means that the data is distributed across multiple disks, allowing for improved performance and fault tolerance. The parity information is used to provide redundancy, allowing for the recovery of data in case of a disk failure. RAID 0 does not include parity, RAID 1 mirrors data across two disks, and RAID 10 combines mirroring and striping but does not include parity.

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  • 18. 

    Which type of Internet connection provides typical downstream networking speeds of 5 to 12 Mbps utilizing phone lines?

    • ADSL

    • VPN

    • Bluetooth

    • 802.3u

    Correct Answer
    A. ADSL
    Explanation
    ADSL (Asymmetric Digital Subscriber Line) is the correct answer because it is a type of Internet connection that utilizes phone lines to provide downstream networking speeds of 5 to 12 Mbps. ADSL is commonly used in residential and small business settings, where the download speed is typically faster than the upload speed. VPN (Virtual Private Network) is a network technology that allows for secure remote connections, Bluetooth is a wireless technology used for short-range communication, and 802.3u is a standard for Fast Ethernet.

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  • 19. 

    In the electrophotographic printing process, which one of the following printers uses a charged corona wire?

    • Laser

    • Thermal

    • Impact

    • Inkjet

    Correct Answer
    A. Laser
    Explanation
    The correct answer is Laser. In the electrophotographic printing process, a laser printer uses a charged corona wire. The corona wire is responsible for applying a uniform charge to the photosensitive drum, which is then selectively discharged by the laser to create an electrostatic image. This image is then transferred to paper and fused using heat and pressure to create the final printed output.

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  • 20. 

    Which of these is a feature of a docking station?

    • Provides built-in power surge protection

    • Provides additional connectivity

    • Expands the laptop memory

    • Provides a second monitor

    Correct Answer
    A. Provides additional connectivity
    Explanation
    A docking station is a device that allows a laptop to connect to multiple peripherals and devices, such as monitors, keyboards, mice, printers, and more. It provides additional connectivity options, expanding the capabilities of a laptop by allowing it to easily connect to various devices without the need for individual cables and adapters. This feature makes it convenient for users to quickly and efficiently connect and disconnect their laptops from a workstation setup, enhancing productivity and flexibility.

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  • 21. 

    One of your customers tells you of some trouble accessing the company wireless network with a laptop. The person could access the network yesterday before they went on the road with a laptop. What is most likely cause of the problem?

    • A laptop battery needs to be reached

    • The wireless network is down

    • Th laptop's wireless antenna is disconnected

    • The laptops's wireless switch is off

    Correct Answer
    A. The laptops's wireless switch is off
    Explanation
    The most likely cause of the problem is that the laptop's wireless switch is off. This is because the customer was able to access the network before going on the road, indicating that the wireless network is functioning properly. If the laptop's wireless antenna was disconnected, the customer would not have been able to access the network at all. Similarly, if the wireless network was down, the customer would not have been able to access it previously. The laptop battery being reached would not affect the ability to access the wireless network.

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  • 22. 

    What type of printer uses a fuser to print documents?

    • Inkjet

    • Dot matrix

    • Laser

    • Thermal

    Correct Answer
    A. Laser
    Explanation
    A laser printer uses a fuser to print documents. The fuser is a component in the printer that uses heat and pressure to fuse the toner onto the paper, creating a permanent image. This process ensures that the toner adheres to the paper and does not smudge or smear. Laser printers are known for their high-quality and fast printing capabilities, making them a popular choice for offices and professional settings.

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  • 23. 

    What is the recommended method to clean a laptop's screen?

    • Paper towel and water

    • Dry lint-free cloth

    • Water with mild detergent

    • Rubbing alcohol and a tissue

    Correct Answer
    A. Dry lint-free cloth
    Explanation
    A dry lint-free cloth is the recommended method to clean a laptop's screen. This is because using water or any liquid can damage the screen and potentially cause it to malfunction. Paper towels can also leave behind lint or scratches on the screen. Rubbing alcohol and tissues may be too abrasive and can also damage the screen. Therefore, using a dry lint-free cloth ensures that the screen is safely and effectively cleaned without causing any harm.

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  • 24. 

    What is an example of EMI?

    • Degraded network performance due to network cables and AC power cables in close proximity

    • Degraded network performance due to too many Bluetooth devices being used in close proximity

    • Degraded network performance due to smartphone usage in close proximity

    • Degraded network performance due to poorly punched down network cables

    Correct Answer
    A. Degraded network performance due to network cables and AC power cables in close proximity
    Explanation
    When network cables and AC power cables are placed in close proximity, it can cause electromagnetic interference (EMI) which can lead to degraded network performance. The electromagnetic fields generated by the AC power cables can interfere with the signals on the network cables, resulting in data transmission errors and reduced network speed. This is a common example of EMI that can impact network performance.

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  • 25. 

    What is the data transfer rate of USB 3.0?

    • 480 Kbps

    • 12 Mbps

    • 480 Mbps

    • 5.0 Gbps

    Correct Answer
    A. 5.0 Gbps
    Explanation
    The data transfer rate of USB 3.0 is 5.0 Gbps. USB 3.0 is a newer version of the USB standard that offers faster data transfer speeds compared to previous versions. This high-speed transfer rate allows for quicker file transfers and improved performance when using USB devices such as external hard drives or flash drives.

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  • 26. 

    You attempting to set up a laptop that will display through a projector. Nothing is appearing on the projector screen. What should you press to enable viewing on the projector screen?

    • Power button

    • Control+ESC

    • Function keys

    • ALT+Insert

    Correct Answer
    A. Function keys
    Explanation
    To enable viewing on the projector screen, you should press the Function keys. Function keys are commonly used to control display settings on laptops, including switching between different display modes such as extending or duplicating the screen. By pressing the appropriate Function key, you can activate the display output to the projector and ensure that the laptop's screen is mirrored or extended onto the projector screen.

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  • 27. 

    What command would you use to verify the IP address of a gateway on a local computer?

    • PING

    • IPCONFIG

    • NET USE

    • NETSTAT

    Correct Answer
    A. IPCONFIG
    Explanation
    To verify the IP address of a gateway on a local computer, the command that would be used is IPCONFIG. IPCONFIG is a command-line tool in Windows that displays the IP configuration details of all network interfaces on the computer, including the IP address of the gateway. By running IPCONFIG, the user can quickly check the IP address of the gateway and ensure that the computer is properly connected to the network.

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  • 28. 

    Which of the following is affected the least by EMI?

    • Twisted pair

    • Coaxial

    • STP

    • Fiber

    Correct Answer
    A. Fiber
    Explanation
    Fiber optic cables are affected the least by EMI (Electromagnetic Interference) because they use light signals instead of electrical signals to transmit data. Unlike twisted pair, coaxial, and STP cables, which can experience interference from nearby electrical devices or electromagnetic fields, fiber optic cables are immune to EMI as they do not conduct electricity. This makes fiber optic cables ideal for environments with high EMI, such as industrial settings or areas with a lot of electrical equipment.

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  • 29. 

    You are working on s server that has several hard drives connected to a SCSI card. The card does not appear to be functioning at top efficiency. You determine that the card requires an update to its embedded code. What is this referred to as?

    • Operating system

    • Driver files

    • Firmware

    • Shareware

    Correct Answer
    A. Firmware
    Explanation
    Firmware refers to the embedded code that controls the functionality of hardware devices, such as the SCSI card in this case. Updating the firmware can improve the performance and efficiency of the card. It is different from the operating system or driver files, which are software components that enable communication between the hardware and the operating system. Shareware, on the other hand, is a type of software that is typically distributed on a trial basis.

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  • 30. 

    What kind of adapter card can use a RJ45 connector?

    • Sound

    • NIC

    • Video

    • Dial-up modem

    Correct Answer
    A. NIC
    Explanation
    A NIC (Network Interface Card) is the correct answer because it can use a RJ45 connector. RJ45 connectors are commonly used for Ethernet connections, and NICs are specifically designed to connect a computer or device to a network, allowing it to send and receive data. Therefore, a NIC is the adapter card that can use a RJ45 connector.

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  • 31. 

    Which type of printer requires special paper to operate?

    • Laser

    • Impact

    • Thermal

    • Inkjet

    Correct Answer
    A. Thermal
    Explanation
    Thermal printers require special paper to operate because they use heat to create images on the paper. The special paper used in thermal printers is coated with a heat-sensitive material that reacts to the heat produced by the printer. When the printer heats specific areas of the paper, it causes the material to change color, creating the desired image or text. This type of printer is commonly used in applications such as receipts, tickets, and labels, where quick and reliable printing is required.

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  • 32. 

    Which of the following CPU types is manufactured by AMD?

    • Pentium

    • Celeron

    • Core i7

    • Phenom

    Correct Answer
    A. Phenom
    Explanation
    The CPU type "Phenom" is manufactured by AMD. Pentium and Celeron are CPU types manufactured by Intel, while Core i7 is also a CPU type manufactured by Intel. Therefore, the correct answer is Phenom, as it is the only CPU type in the given options that is manufactured by AMD.

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  • 33. 

    What is the purpose of a power inverter?

    • Backup source of power

    • Converts AC to DC

    • Provides regulated AC voltage

    • Protects against surges

    Correct Answer
    A. Converts AC to DC
    Explanation
    A power inverter is a device that converts alternating current (AC) to direct current (DC). This is useful in situations where DC power is needed, such as in vehicles or for powering electronic devices. By converting AC to DC, a power inverter allows for the use of DC-powered devices in environments where AC power is the primary source.

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  • 34. 

    Which of the following does not have to do with virtualization?

    • VMware

    • Hypervisor

    • Virtual PC

    • CAD/CAM

    Correct Answer
    A. CAD/CAM
    Explanation
    CAD/CAM stands for Computer-Aided Design/Computer-Aided Manufacturing. It is a technology used in various industries, such as engineering and manufacturing, to design and produce products. CAD/CAM does not have any direct relation to virtualization. Virtualization, on the other hand, refers to the process of creating a virtual version of something, such as a computer system or network resources. VMware, Hypervisor, and Virtual PC are all technologies and software that are specifically related to virtualization.

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  • 35. 

    A frustrated customer calls you about a PC that is not functioning properly. What should you ask the user?

    • "What were you doing when the computer crashed?"

    • "Don't use that computer until it's fixed."

    • "What was the last thing that occurred before the computer stopped functioning properly?"

    • "What was the last thing you did before the computer stopped functioning properly?"

    Correct Answer
    A. "What was the last thing that occurred before the computer stopped functioning properly?"
    Explanation
    The correct answer is "What was the last thing that occurred before the computer stopped functioning properly?" This question is important because it helps gather information about the sequence of events leading up to the issue. By asking this question, the technician can identify any recent changes or actions that might have caused the problem, making it easier to diagnose and resolve the issue.

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  • 36. 

    What type if RAM us used to solve memory errors?

    • ECC

    • Parity

    • Non-parity

    • Non-ECC

    Correct Answer
    A. ECC
    Explanation
    ECC stands for Error Correcting Code, and it is a type of RAM (Random Access Memory) that is used to solve memory errors. ECC RAM is designed to detect and correct errors that occur during data storage and retrieval. It uses additional bits to store error detection and correction codes, allowing it to identify and fix single-bit errors, and detect multi-bit errors. This makes ECC RAM more reliable and suitable for systems that require high levels of data integrity and error correction, such as servers and workstations.

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  • 37. 

    Which connector is most used with POTS lines?

    • RJ45

    • RJ11

    • BNC

    • SC

    Correct Answer
    A. RJ11
    Explanation
    The most commonly used connector with POTS (Plain Old Telephone Service) lines is the RJ11 connector. This connector is specifically designed for telephone applications and is widely used for connecting telephones, fax machines, and modems to POTS lines. The RJ11 connector has four pins and is smaller in size compared to other connectors like RJ45, BNC, and SC, which are commonly used for networking and other applications.

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  • 38. 

    Which of the following optical media has the largest storage space?

    • Hard drive

    • DVD-ROM

    • Blu-Ray

    • DVD-18

    Correct Answer
    A. Blu-Ray
    Explanation
    Blu-Ray has the largest storage space among the given options. Blu-Ray discs can hold up to 25GB (single-layer) or 50GB (dual-layer) of data, making them capable of storing large amounts of high-definition video, audio, and other digital content. In comparison, DVD-ROMs can typically store up to 4.7GB (single-layer) or 8.5GB (dual-layer) of data, while DVD-18 can hold up to 17GB (dual-sided, dual-layer). Hard drives, although not an optical media, generally offer much larger storage capacities than optical discs.

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  • 39. 

    What protocol uses port 443?

    • SMTP

    • FTP

    • RDP

    • HTTPS

    Correct Answer
    A. HTTPS
    Explanation
    HTTPS (Hypertext Transfer Protocol Secure) is the correct answer. HTTPS is a protocol used for secure communication over a computer network, commonly used for secure browsing on the internet. It uses port 443 to establish a secure connection between a client and a server, encrypting the data transmitted between them. This ensures that the data remains confidential and protected from unauthorized access. SMTP (Simple Mail Transfer Protocol), FTP (File Transfer Protocol), and RDP (Remote Desktop Protocol) are all different protocols that use different ports for their respective purposes, and are not associated with port 443.

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  • 40. 

    Why should VoIP not be used with satellite Internet?

    • Bandwidth limitations

    • Difficult to install

    • Latency

    • Cost

    Correct Answer
    A. Latency
    Explanation
    VoIP should not be used with satellite Internet due to latency. Latency refers to the delay in transmitting data over the network. Satellite Internet connections have high latency because the data has to travel a long distance between the satellite in space and the user's device on the ground. This delay can cause issues with real-time communication, such as voice calls, as it can result in delays, poor call quality, and disruptions. Therefore, using VoIP with satellite Internet can lead to a subpar user experience and is not recommended.

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  • 41. 

    You have a PCIe card that you need ti install. The card's documentation says that is requires a x4 slot. The computer you are installing to has only x1 and x16 slots. What should you do?

    • Install the card to the x1 slot and get normal performance

    • Install the card to the x16 slot and get four times the performance

    • Install the card to the x1 slot and get half the performance

    • Install the card to the x16 slot and get normal performance

    Correct Answer
    A. Install the card to the x16 slot and get normal performance
    Explanation
    The correct answer is to install the card to the x16 slot and get normal performance. This is because the PCIe card requires a x4 slot, but it can also be installed in a x16 slot without any issues. The x16 slot has more lanes and bandwidth compared to the x1 slot, so the card will still function properly and provide normal performance.

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  • 42. 

    Which of the following is the correct data connector for an internal SATA hard drive?

    • 7-pin

    • 15-pin

    • 34-pin

    • 40-pin

    Correct Answer
    A. 7-pin
    Explanation
    The correct data connector for an internal SATA hard drive is a 7-pin connector. SATA (Serial ATA) is a standardized interface used for connecting storage devices such as hard drives and solid-state drives to a computer's motherboard. The 7-pin connector is specifically designed for SATA drives and provides a fast and reliable data transfer between the drive and the motherboard.

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  • 43. 

    Which solution would provide the best cooling to the CPU?

    • Heat sink

    • Liquid cooling

    • CPU fan

    • Multimeter

    Correct Answer
    A. Liquid cooling
    Explanation
    Liquid cooling would provide the best cooling to the CPU because it involves circulating a liquid coolant around the CPU to absorb and dissipate heat. This method is more efficient than a heat sink or a CPU fan, as it can transfer heat more effectively and maintain lower temperatures. A multimeter is not a cooling solution and does not contribute to cooling the CPU.

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  • 44. 

    What is the best way for a technician to prevent ESD when installing RAM?

    • Wear a grounded wristband

    • Touch grounded metal before making contact with components

    • Make sure the AC plug has a ground post

    • Wear rubber-soled shoes

    Correct Answer
    A. Wear a grounded wristband
    Explanation
    The best way for a technician to prevent ESD when installing RAM is to wear a grounded wristband. This is because a grounded wristband helps to discharge any built-up static electricity from the technician's body, preventing it from transferring to the sensitive electronic components such as RAM. By wearing a grounded wristband, the technician ensures that they are at the same electrical potential as the components they are handling, minimizing the risk of damaging them due to electrostatic discharge.

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  • 45. 

    Which of the following commands can obtain an IP address from a DHCP server?

    • PING -t

    • NSLOOKUP

    • IPCONFIG /RENEW

    • MSCONFIG

    Correct Answer
    A. IPCONFIG /RENEW
    Explanation
    The command "IPCONFIG /RENEW" can obtain an IP address from a DHCP server. The IPCONFIG command is used to display or modify the network settings of a computer, and the /RENEW option specifically requests a new IP address from the DHCP server. This command is commonly used when troubleshooting network connectivity issues or when a computer is unable to obtain an IP address automatically.

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  • 46. 

    You have been tasked with running a network extension to the warehouse that is 50 meters (164 feet) away. The proposed path will take the network extension near several fluorescent light fixtures and a large electric motor. What type of cable would be best for this environment?

    • Unshielded twisted-pair

    • Coaxial

    • Fiber-optic

    • Shielded twisted-pair

    Correct Answer
    A. Fiber-optic
    Explanation
    Fiber-optic cable would be the best choice for this environment because it is not affected by electromagnetic interference (EMI) caused by the fluorescent light fixtures and the large electric motor. Fiber-optic cables use light to transmit data, so they are immune to EMI and can maintain a high level of signal integrity over long distances. Additionally, fiber-optic cables have a higher bandwidth capacity compared to other types of cables, making them suitable for high-speed data transmission over a 50-meter distance.

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  • 47. 

    You are tasked with upgrading the RAM in a customer's laptop. What type of memory should you select?

    • SODIMM

    • DDR3

    • RIMM

    • SDRAM

    Correct Answer
    A. SODIMM
    Explanation
    SODIMM stands for Small Outline Dual In-line Memory Module, which is a type of memory specifically designed for laptops and other small form factor computers. It is the correct choice for upgrading the RAM in a customer's laptop as it is compatible with most laptop motherboards and offers higher performance compared to other options. DDR3, RIMM, and SDRAM are not suitable choices for upgrading laptop RAM.

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  • 48. 

    Why do CRT monitors have  a degauss feature?

    • A reset the monitor to factory default settings

    • To automatically adjust the display settings for optimal performance

    • To increase video monitor brightness

    • To remove magnetic fields

    Correct Answer
    A. To remove magnetic fields
    Explanation
    CRT monitors have a degauss feature to remove magnetic fields. Magnetic fields can distort the image on the screen, causing color and image quality issues. The degauss feature uses a built-in coil to generate a magnetic field that cancels out any residual magnetic fields on the screen. This helps to restore the image to its original clarity and prevent any further distortion.

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  • 49. 

    Of the following default ports, which one is used by the TELNET protocols?

    • 23

    • 25

    • 80

    • 110

    Correct Answer
    A. 23
    Explanation
    TELNET is a protocol used for remote login and command execution on a remote computer. It operates on port number 23, which is specifically assigned for TELNET communication. This port allows users to establish a connection with a remote host and interact with it using a command-line interface. Therefore, the correct answer is 23.

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  • Current Version
  • Jan 18, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 02, 2013
    Quiz Created by
    Shellbreiner

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