CompTIA A+ 220-701 Essentials Practice Test....(Part 3)

When attempting to understand a problem, it is important for the technician to ask the user to explain the problem and listen without interrupting the user. This allows the technician to gather all the necessary information about the issue at hand and understand it from the user's perspective. Interrupting the user may prevent the technician from getting a complete understanding of the problem and potentially miss important details. By actively listening and allowing the user to explain the problem fully, the technician can better diagnose and resolve the issue.

The Docking station is a platform that allows you to host desktop components permanently. It provides slots for expansion cards, connectors for peripheral devices, and bays for storage devices. Once a portable computer is inserted in a docking station it behaves like a desktop computer.

A KVM (Keyboard, Video, Mouse) switch is a device that allows a user to control multiple computers with a single keyboard, monitor, and mouse. It enables the user to switch between different computers without the need to physically disconnect and reconnect the peripherals. Therefore, a KVM switch is the correct answer as it provides the functionality of using multiple computers with a single monitor.

MAC filtering is used to control access to a network based on the address hard coded into the NIC. MAC filtering allows or denies network access based on the MAC address of the device. The MAC address is a unique identifier assigned to the network interface card (NIC) of a device. By configuring MAC filtering, only devices with specific MAC addresses are allowed to connect to the network, providing an additional layer of security.

After resolving the problem, the next action should be to verify that all other parts of the system are working properly. This step is important to ensure that the problem resolution did not cause any new issues or disruptions in the system. By checking the functionality of all other components, it helps to ensure the overall stability and reliability of the system.

This scenario is an example of phishing. Phishing is a type of cyber attack where attackers impersonate a trustworthy entity to trick individuals into revealing sensitive information such as usernames, passwords, or credit card details. In this case, the client receives an email pretending to be from their online auction and is asked to login and update their account information. However, the email is actually sent by the attacker who aims to steal the client's credentials and gain unauthorized access to their account.

When traveling to other countries, the voltage switch on a power supply may need to be changed. This is because different countries have different electrical systems and use different voltage standards. For example, in the United States, the standard voltage is 120 volts, while in many other countries, it is 220-240 volts. Therefore, when traveling to a country with a different voltage standard, the voltage switch on the power supply needs to be adjusted to match the local voltage in order to prevent damage to the electronic devices.

The SSID (Service Set Identifier) is assigned to broadcast on a wireless network. It is a unique name that identifies a specific wireless network. When devices search for available networks, they can see the SSID being broadcasted and use it to connect to the desired network. The SSID acts as a network identifier and helps devices differentiate between different wireless networks in the vicinity.

BitLocker is a utility used for encrypting hard drives. It provides a security feature that helps protect data by encrypting the entire drive. This encryption ensures that the data stored on the hard drive is protected and cannot be accessed by unauthorized users. By encrypting the hard drive, BitLocker helps to safeguard sensitive information and prevent data breaches in case the device is lost or stolen. It is commonly used in organizations and individuals who require a high level of data security.

The RJ-11 connector is the correct answer because it is commonly used for telephone connections and is specifically designed to plug into a 56K dial-up modem. The BNC connector is typically used for coaxial cables in video applications, the RJ-45 connector is used for Ethernet connections, and the ST connector is used for fiber optic cables. Therefore, the RJ-11 connector is the most appropriate choice for a dial-up modem.

A worm is a type of malicious software that is able to replicate itself and spread to other computers or devices without any action from the user. Unlike viruses, worms do not need to attach themselves to other files or programs in order to spread. They can exploit vulnerabilities in computer networks and use various methods such as email, instant messaging, or file sharing to propagate themselves. The main characteristic of a worm is its ability to independently replicate and spread, making it a self-replicating and self-propagating form of malware.

MSCONFIG is the correct answer because it is a utility in Windows XP that allows users to manage the startup programs. It provides a simple interface where users can enable or disable programs that automatically start when the computer boots up. This utility is commonly used to troubleshoot startup issues and improve the overall performance of the system by preventing unnecessary programs from running at startup.

The most likely cause for the beeping sound after the cleaning crew left is that the UPS (Uninterruptible Power Supply) is disconnected from the wall. UPS devices are used to provide backup power to electronic devices in case of power outages or fluctuations. If the UPS is disconnected, it may start beeping to indicate that it is not receiving power or is not properly connected. This would explain why the user started hearing the beeping sound after the cleaning crew left.

PCIe has the greatest peak bandwidth among the given slot types. PCIe stands for Peripheral Component Interconnect Express and it is a high-speed serial computer expansion bus standard. It offers significantly higher bandwidth compared to other slot types such as ISA, AGP, and PCI-X. PCIe is commonly used for connecting graphics cards, network cards, and other high-performance devices to the motherboard, providing faster data transfer rates and improved overall system performance.

The correct answer is "From the start command window". In a Windows machine, the start command window allows users to type in and launch executable files. This can be done by opening the start menu, typing "cmd" or "command prompt" in the search bar, and then using the command prompt window to navigate to the location of the executable file and launch it.

Before returning a repaired system to a user, it is important to document the system findings, actions, and outcomes. This helps to keep a record of the troubleshooting process and can be useful for future reference. Additionally, verifying full system functionality ensures that all the issues have been resolved and the system is working properly. Implementing preventative measures helps to minimize the chances of similar problems occurring in the future, improving the overall reliability of the system.

PCIe (Peripheral Component Interconnect Express) is the correct answer because it is the latest and fastest slot for connecting video cards to a computer's motherboard. PCIe offers higher bandwidth and faster data transfer rates compared to other slots such as ISA, PCMCIA, and AGP. ISA (Industry Standard Architecture) is an older slot that does not support modern video cards. PCMCIA (Personal Computer Memory Card International Association) is a slot primarily used for laptop expansion cards and does not provide the necessary speed for high-performance video cards. AGP (Accelerated Graphics Port) is an older slot specifically designed for graphics cards but has been largely replaced by PCIe for faster performance.

ECC stands for Error Correcting Code, which is a feature in RAM modules that allows them to detect and correct single bit errors in memory. This means that if there is a bit flip or error in the data stored in a memory cell, ECC can identify and fix it automatically, ensuring the integrity and accuracy of the stored information. By detecting and correcting these errors, ECC helps to improve the reliability and stability of the RAM module.

DHCP (Dynamic Host Configuration Protocol) is part of the TCP/IP network configuration as it allows for automatic assignment of IP addresses to devices on a network. DNS (Domain Name System) is also part of the TCP/IP network configuration as it translates domain names into IP addresses, enabling communication between devices using human-readable addresses.

The correct answer is Heatsink and CPU. Thermal compound is used to improve heat transfer between the CPU and the heatsink. The CPU generates heat during operation, and the heatsink is responsible for dissipating that heat. By applying thermal compound between the CPU and heatsink, it fills in any microscopic gaps and improves the contact between the two components, allowing for better heat transfer. This helps to keep the CPU cool and prevent overheating. The motherboard, fan, and capacitors do not typically require direct contact with thermal compound.

The technician's response of asking if they can redirect the user's computer to a network printer until the problem is fixed suggests a temporary solution to the printing issue. This response indicates that the technician is willing to find an alternative way for the user to continue printing while waiting for the printer to be repaired.

To define power management in laptop computers, you need to use ACPI standard. It was introduced in 1996 and is an extension of the system BIOS.

A technician should expect to see status light indicators on the NIC (Network Interface Card) and Modem interfaces. These status lights indicate the current status of the network connection and modem activity respectively. The lights can provide information such as whether the connection is active, if there is any data transmission or reception, and if there are any connection issues. This allows the technician to quickly diagnose and troubleshoot network or modem problems.

The technician can use the appropriate function toggle key to switch the display mode. This key combination allows the user to toggle between different display options, such as extending the display to the projector or duplicating the display on both the laptop screen and the projector. By using this key combination, the technician can select the desired display mode and send the display to the projector.

Temporary Internet Files is a location where a browser can pull files in order to avoid pulling them from the Internet. When a user visits a website, the browser stores certain elements of that website, such as images, scripts, and HTML files, in the Temporary Internet Files folder. This allows the browser to retrieve those files from the local cache instead of downloading them again from the Internet, which can improve loading times and reduce data usage.

The best startup selection in this scenario would be "Last Known Good Configuration." This option allows the system to start using the most recent settings that were known to work properly before the crash occurred. By selecting this option, the system can revert back to a stable state and potentially resolve any issues caused by the external hard drive installation. Safe Mode with Command Prompt and Debugging Mode are more suitable for troubleshooting purposes, while Active Directory Restore Mode is specific to domain controllers and not relevant in this situation.

An anti-static wrist strap and an anti-static mat are both tools that can protect a workstation against ESD (electrostatic discharge). An anti-static wrist strap is worn by the technician and is connected to a grounded surface, allowing any built-up static electricity to be safely discharged. An anti-static mat is placed on the work surface and provides a conductive surface that helps to prevent the buildup of static electricity. Both of these tools are essential in preventing damage to sensitive electronic components from ESD.

Cache is a type of memory that stores frequently accessed data and instructions for faster access by the CPU. It is located closer to the CPU than main memory (RAM) and has faster access times. The purpose of cache is to reduce the latency between the CPU and main memory, improving overall system performance. Therefore, cache is the correct answer as it stores information for faster access on a CPU.

SCSI (Small Computer System Interface) is a type of interface used to connect various peripheral devices to a computer. In a SCSI chain, termination is required at the last device in order to prevent signal reflections and ensure proper communication between devices. If termination is not present at the last device, the signal may bounce back and cause data corruption or communication failures. Therefore, termination is crucial for the proper functioning of SCSI devices.

To configure dual-boot computers, you need to edit the boot.ini that is loaded by the ntldr file that loads the bootstrap process in a system. The boot.ini file is an editable text file with one or more lines that reference partitions to boot to.

To access the advanced startup options in Windows Vista and Windows XP you need to press F8 during the first phase of the boot process.

The proper technique for cleaning the inside of a desktop computer with a can of compressed air is to first unplug the power cable to ensure safety. Then, remove the cover of the computer case to access the internal components. Holding the can of compressed air upright, spray the air onto the components to remove dust and debris. This technique ensures that the computer is powered off and components are accessible for thorough cleaning.

To increase the paging file size on a Windows XP system, the technician would need to go to System Properties, then navigate to the Advanced tab. From there, they would click on the Performance Settings button, and then go to the Advanced tab within the Performance Options window. In this tab, they would find the setting to adjust the paging file size.

Digital signatures are a cryptographic mechanism that ensures the authenticity and integrity of a message. They use a combination of public and private keys to verify the identity of the sender and to guarantee that the message has not been tampered with during transmission. This technology provides a secure way to verify the origin and integrity of digital documents, ensuring that they have not been altered or forged.

Plastic and metal standoffs are used to mount the motherboard and to prevent it from touching the metal portions of the case. You should install only the standoffs that align with the holes in the motherboard. Installing any additional standoffs may prevent the motherboard from being seated properly in the computer case.

Cable locks are the best option for preventing theft of monitors and laptops. These locks physically secure the devices by attaching them to a fixed object, such as a desk or table, using a steel cable. This makes it difficult for thieves to simply grab and run with the devices. Cable locks provide a visible deterrent and offer a level of protection against opportunistic theft. They are often used in office or public settings where devices need to be left unattended for short periods of time.

The monitor, laptop AC adapter, and computer should be plugged into a UPS located at a user's desk. A UPS (Uninterruptible Power Supply) is designed to provide backup power in case of a power outage or fluctuation. Plugging the monitor, laptop AC adapter, and computer into the UPS ensures that these devices will continue to receive power during such events, allowing the user to save their work and safely shut down their devices. The laser printer, portable heater, and vacuum cleaner do not require backup power and therefore do not need to be plugged into the UPS.

A technician can find the IP address of a computer by opening Network Connections from the control panel, right-clicking the Local Area Connection, selecting Status, and then selecting the Support tab. They can also open a command window and run ipconfig from the command line.

The best course of action is to replace the entire power supply. If the fan on the power supply is not working, it indicates a potential issue with the power supply itself. Continuing to use the power supply may lead to further problems or failure. Verifying the voltage powering the fan or replacing just the fan may not address the underlying issue with the power supply. Therefore, replacing the entire power supply is the most effective solution.

The paper jam was caused by moisture in the paper tray. This is the most appropriate answer because it directly addresses the cause of the problem that the customer asked for an explanation for. It explains that the presence of moisture in the paper tray led to the paper jam.

Before performing any diagnostics, the technician should run a backup routine. This is important because running a backup will ensure that the user's data is safely stored in case any further issues occur during the diagnostic process. It is a precautionary measure to prevent any potential data loss.

An impact printer works by using small wires that strike against an ink ribbon, transferring ink onto the paper. This method creates the desired text or image on the paper through physical contact and impact. It is different from other options mentioned, such as heat-based methods or toner-based methods.

STP (Shielded Twisted Pair) cable provides a benefit of decreased EMI (Electromagnetic Interference). EMI refers to the disturbance caused by electromagnetic radiation from external sources, which can negatively affect the performance of electronic devices and data transmission. By using STP cable, the electromagnetic shielding helps to reduce the impact of external interference, ensuring a more reliable and stable signal transmission. This makes STP cable a preferred choice in environments where EMI is a concern, such as industrial settings or areas with high levels of electromagnetic radiation.

The correct answer is 4GB. The random access memory (RAM) limitations with the Vista 32-bit operating system is that it can only support a maximum of 4GB of RAM. This is because a 32-bit operating system can only address up to 4GB of memory. If more than 4GB of RAM is installed, the excess memory will not be utilized by the system. To fully utilize more than 4GB of RAM, a 64-bit operating system is required.

A thermal transfer printer works by using heat from the print head to transfer an image onto the paper. This process involves the print head heating up and melting the ink on a ribbon. The melted ink is then transferred onto the paper, creating the desired image or text. This method ensures that the image is transferred accurately and with high resolution onto the paper.

A switching-mode power supply is the most likely power source for a desktop computer because it is commonly used in modern computer systems. It is efficient, compact, and provides a stable power output, making it ideal for powering the various components of a desktop computer. Linear power supplies are less efficient and larger in size, making them less suitable for desktop computers. Nickel cadmium and lithium ion cells are rechargeable batteries, which are not typically used as the primary power source for desktop computers.

The technician should upgrade to an 802.11n wireless card. This is because 802.11n is capable of providing faster data transfer speeds than 54MB/s, which is the requirement of the customer. The other options, 802.11g, 802.11a, and 802.11b, do not meet the customer's requirement for a faster wireless LAN connection.

Using a password generator eliminates a user's tendency to create passwords that can be a security liability. This is because password generators create strong, random passwords that are harder for hackers to guess or crack. Users often tend to create weak passwords that are easy to remember, such as using common words or personal information, which can be easily exploited by attackers. By using a password generator, users can ensure that their passwords are strong and secure, reducing the risk of unauthorized access to their accounts.

Bluetooth 2.0 has a maximum range of 30 feet (9 meters). Bluetooth technology is commonly used for short-range wireless communication between devices, such as smartphones, tablets, and headphones. It operates on the 2.4 GHz frequency band and has a limited range compared to other wireless technologies like 802.11b and 802.11a, which have longer ranges and are used for Wi-Fi connections. Infrared is also a short-range wireless technology, but it typically has a shorter range than Bluetooth.

The correct answer is "Provides security for a network through the use of ACLs." A firewall is a network security device that monitors and controls incoming and outgoing network traffic based on predetermined security rules. Access Control Lists (ACLs) are one of the main features of a firewall, allowing administrators to define specific rules and filters for network traffic. These rules determine which packets are allowed to pass through the firewall and which are blocked, providing security by preventing unauthorized access and protecting against various network threats.