CompTIA FC0-U61 Practice Test - Questions Answers, Page 35

NFC (Near Field Communication) technology requires devices to be within 6 inches (15.24 cm) of each other to communicate. This short range facilitates secure communications for tasks such as contactless payments, quick data transfers, and connection setups between devices.

Reference: In the sections dealing with wireless technologies and data exchange methods, CompTIA IT Fundamentals documentation outlines the operational characteristics of NFC, including its very limited range, which supports its use for secure, close-proximity communications.

In a scenario where an executive is sharing slides in a conference room, the most likely application used is presentation software. Presentation software allows users to create slideshows that typically include a variety of elements such as text, images, and videos, which are ideal for delivering information clearly and engagingly during meetings or presentations. Examples include Microsoft PowerPoint, Google Slides, and Apple Keynote.

Reference: This is consistent with common IT knowledge and practices as understood in IT fundamentals and further verified by CompTIA A+ and CompTIA IT Fundamentals documentation.

Device Manager in Windows is a system utility used to view and control the hardware attached to the computer. It allows users to uninstall, disable, and update device drivers, as well as scan for hardware changes. This utility is essential for managing the interactions between a computer's operating system and its hardware components.

Reference: This functionality is outlined in various IT certification materials, including CompTIA's documentation which emphasizes understanding system utilities for effective IT support.

Phone numbers, although made up of digits, are best stored as strings in most programming and database contexts. This is because phone numbers may contain leading zeros, separators (such as dashes or spaces), and international codes that are not used in calculations as numeric values would be. Storing phone numbers as strings preserves the exact formatting and data integrity.

Reference: Basic data type handling is a fundamental topic in IT education, as discussed in CompTIA IT Fundamentals and other programming foundational guides.

Comparing storage capacities requires understanding the magnitude of each unit. The hierarchy from smallest to largest is megabytes (MB), gigabytes (GB), terabytes (TB), and then petabytes (PB). 1 PB (petabyte) = 1,000 TB (terabytes) 100 TB = 100 terabytes 9,000 GB = 9 terabytes 9,900 MB = 0.0099 terabytes Therefore, 1 petabyte (PB) is significantly larger than the other options listed.

Reference: Storage capacity units and conversions are covered in IT fundamental courses and materials, including those by CompTIA.

The best way to remove unnecessary programs from a computer system using the operating system's features is through 'Application management.' This feature typically provides a user interface that allows users to view, manage, and uninstall applications installed on the system. Using this feature, you can select the programs that are not needed and choose to uninstall them, thereby freeing up system resources and storage space.

Reference: This is in line with the functions of application management features found in common operating systems like Windows and macOS, which are included in the CompTIA IT Fundamentals curriculum for understanding software management.

To add data into a database after its creation, the SQL command 'INSERT' is used. This command allows you to insert data into specific columns of a table in the database. The syntax of the INSERT command specifies the table to insert into, the columns to populate, and the values to enter into those columns. This is fundamental in database management and manipulation, critical for developers working with databases.

Reference: INSERT is a basic and essential SQL command covered under database operations in CompTIA IT Fundamentals and other foundational IT curricula focusing on software development and database management.

The most secure password reset process among the given options is to ask users to answer custom questions and then send a reset code via text. This method combines something the user knows (the answer to a custom question) with something the user has (access to a personal device that can receive a text), which aligns with the security principle of two-factor authentication, increasing the security of the reset process.

Reference: This method is frequently recommended in security best practices, including those covered by CompTIA IT Fundamentals, which emphasizes the importance of multi-factor authentication to enhance security.

Plug-and-play installation refers to the technology that allows the operating system to detect and configure new devices automatically as soon as they are connected to the computer, without the need for user intervention. This typically involves the automatic installation of the necessary drivers that enable the operating system to communicate with the hardware device, making the device ready for use quickly and efficiently.

Reference: Plug-and-play technology is a fundamental concept in understanding hardware and operating system interactions, as covered in the CompTIA IT Fundamentals and other basic IT educational materials.