CompTIA A+ 220-801practice Exam

A heat sink is a device that disperses heat without the need for any moving parts. It is typically made of a thermally conductive material, such as aluminum or copper, and is designed to absorb and dissipate heat from a component, such as a CPU or a GPU. The heat sink achieves this by increasing the surface area available for heat transfer, allowing the heat to be transferred to the surrounding environment through conduction, convection, and radiation. Unlike fans or liquid cooling systems, a heat sink does not require any mechanical components to function, making it a passive cooling solution.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

RDP stands for Remote Desktop Protocol, which is a proprietary protocol developed by Microsoft for remote access to Windows-based systems. The default port used by RDP for communication is 3389. This means that when establishing a remote desktop connection using RDP, the client will attempt to connect to the remote system on port 3389 by default. Therefore, the correct answer is 3389.