CompTIA A+ Practice Test (220-1101)

Secure web browsing uses Hypertext Transfer Protocol Secure (HTTPS). By default, HTTPS uses TCP port 443 to encrypt communications and ensure secure transmission of data between the client and server. Port 80 is used for standard, unencrypted HTTP traffic. Port 53 is commonly reserved for DNS services and 23 for Telnet, which is not secure and not used for web browsing.

While some printers may provide a specific access panel or guided process to clear staple jams, the answer is generally accurate. Multifunction printers with finishing capabilities such as automatic stapling often require the user to manually remove jammed staples. This typically involves accessing the stapler component, either through a designated access panel or by opening portions of the finisher unit. Always ensure the printer is off when attempting to clear a jam to prevent injury.

Satellite connections often have notable delay/latency issues which would be unacceptable for VoIP and video conferences, they are also negatively impacted by weather. The hand-off for satellite is likely RJ-45 or something similar, you may need a new modem but re-wiring the entire network is an unlikely requirement. Satellite connections can be used with encryption.

Bluetooth is the correct answer because it is specifically designed for short-range communication often needed for connecting wearable devices to smartphones, making it a typical technology used for Personal Area Networks (PAN). Infrared requires a direct line of sight and is not commonly used for health wearables due to the necessity of constant connectivity. RFID is primarily used for identification and tracking, offering different functionality compared to the synchronizations of a wearable device. WiMAX, on the other hand, is suited for much larger ranges and wouldn't be the most power-efficient or practical solution for communication between a wearable device and a smartphone.

LCD TN (Twisted Nematic) panels are known for their fast response times, making them suitable for applications that require quick refresh rates, such as gaming. However, TN panels typically have limited viewing angles, which means that the display quality and color accuracy can degrade when viewed from off-center angles. This characteristic is an important consideration when choosing displays for specific use cases.

Port 995 is the designated port for secure POP3 communications, also known as POP3S or POP3 over SSL/TLS. When configuring an email client to retrieve emails securely via POP3, it should be set to use this port, which facilitates encrypted communication to prevent eavesdropping. Port 110 is used for non-secure POP3 connections. Port 587 is for submitting emails via SMTP securely using STARTTLS. Ports 143 and 993 are typically used for the IMAP protocol, with the latter being the secure version (IMAPS). Port 25 is used for unencrypted SMTP.

The CompTIA troubleshooting methodology:

1. Identify the problem
2. Establish a theory of probable cause
3. Test the theory to determine the cause
4. Establish a plan of action to resolve the problem and implement the solution
5. Verify full system functionality, and, if applicable, implement preventive measures
6. Document findings, actions and outcomes

https://www.comptia.org/blog/troubleshooting-methodology

The Lightning connector is a type of proprietary connector used for charging and data transfer developed by Apple used exclusively for their products.

In recent years Apple has begun rolling out USB-C support for devices as well, but this is not a proprietary connector.

This is false. As long as the Hypervisor can provide the resources (CPU, Memory, etc.) needed to run the OS installed onto the virtual machine there are no limitations. Windows 10, Windows Server, Linux, etc. can all be run virtually regardless of the host OS.

A hybrid cloud combines private (on-premises) and public cloud infrastructures to form a single, flexible, and scalable solution. This allows an organization to keep sensitive data in a private cloud while leveraging the computing power and resources of public clouds for less-sensitive operations.

Windows will show this alert when it detects its assigned IP is being used somewhere else on the network. This can happen when a static IP is assigned and it conflicts with a DHCP server or when two workstations are given the same static IP.

A Software as a Service (SaaS) model is best suited for a company looking to offer its employees scalable services like email, applications, and storage without significantly investing in the infrastructure or IT staff to manage it. SaaS providers manage the infrastructure, platforms, and software, allowing users to access applications via the internet on a subscription basis.

Dots per Inch (DPI) is the standard measurement used for printers. It refers to the amount of dots that are placed by the printer in a one inch space. This is similar to Pixels Per Inch (PPI), which is used to measure how many pixels are placed in an inch by a monitor or screen. Aspect/Contrast Ratios are used to compare height and width of paper, monitors, etc. For example 4x1 would be 4 height for every 1 width - this could be 400x100 or 800x200.

A network tap is a hardware device that allows for the non-intrusive monitoring of network traffic. It is used to capture and analyze the data flowing through a network segment without disrupting the network's normal operation. Network taps are commonly employed for various purposes, including network troubleshooting, security monitoring, and performance analysis.

One long beep followed by three short beeps generally indicates a problem related to the video card or the graphics system. This POST beep code is commonly associated with an error in video card detection or failure. In a situation where the computer was functioning correctly before being moved, it's possible that the video card may have become unseated or disconnected during the process. Reducing the hardware components to minimum requirements, ensuring the video card is properly seated with all necessary power connections attached can help resolve the issue. The other answers are incorrect because the symptoms described by the POST beeps do not typically relate to a faulty CPU (which would produce different beep codes), insufficient RAM (where beeps would indicate a memory issue, but the error specifics would differ), or a peripheral device issue which generally doesn't stop POST.