The exact number of bytes in a gigabyte is 1.073.741.824 bytes. A byte is a unit of digital information that consists of eight bits. A bit is a binary digit that can have one of two values: 0 or 1. A byte can store one character, such as a letter, a number, or a symbol. A gigabyte is a unit of digital information that consists of 1.073.741.824 bytes or 1.024 megabytes. A megabyte is a unit of digital information that consists of 1.048.576 bytes or 1.024 kilobytes. A kilobyte is a unit of digital information that consists of 1.024 bytes. These units are based on the binary system, which uses powers of two to represent values. However, there are also decimal units that use powers of ten to represent values, such as gigabyte (GB), megabyte (MB), and kilobyte (KB). These units are often used by storage devices and network services to measure capacity or speed. In this case, one gigabyte (GB) equals 1 billion bytes or 1.000 megabytes (MB). One megabyte (MB) equals 1 million bytes or 1.000 kilobytes (KB). One kilobyte (KB) equals 1 thousand bytes. Reference: The Official CompTIA IT Fundamentals (ITF+) Student Guide (Exam FC0-U61), Chapter 2: IT Concepts and Terminology

SMTP and POP3 are the most likely network protocols that will be used when sending and receiving Internet email. SMTP stands for Simple Mail Transfer Protocol, which is a protocol that enables the transmission of email messages from a client to a server or from one server to another. SMTP is used to send outgoing email messages. POP3 stands for Post Office Protocol version 3, which is a protocol that enables the retrieval of email messages from a server to a client. POP3 is used to download incoming email messages. Reference : The Official CompTIA IT Fundamentals (ITF+) Study Guide (FC0-U61), page 166.

Task scheduling is a function of an operating system that allows users to run a script or a program at a certain time or interval automatically. Task scheduling would be the best way for a systems administrator to run a script at a certain time every day without manual intervention. Perform process management, set the system date and time, and set a reminder to run the script are not options that would allow the systems administrator to run a script at a certain time every day automatically. Reference: CompTIA IT Fundamentals+ Study Guide: Exam FC0-U61, Second Edition, Chapter 3: Computing Components, page 128.

Among the listed internet connection types, 'Fiber to the curb' (FTTC) generally provides the fastest speeds. FTTC involves running fiber-optic cables close to the curbs near homes or businesses, with the remaining connection to the premises being made through traditional coaxial or ethernet cabling. This provides higher speeds compared to traditional DSL (Digital Subscriber Line) or cellular connections.
Reference: Networking and internet technologies, including different types of broadband connections, are thoroughly explored in CompTIA IT Fundamentals, emphasizing the speed and reliability differences among various internet access technologies.