Pearson FC0-U61 New Attempt

A vector is a type of data structure that can store a collection of data of the same data type in a dynamic sequence. A vector can grow or shrink in size as data is added or removed from it. A vector would be the best option for storing a collection of data in programming because it can accommodate different amounts of data and allow fast access to any element by using its index number. Repeating a similar operation, capturing user input, and performing mathematical calculations are not purposes of a vector in programming. References: CompTIA IT Fundamentals+ Study Guide: Exam FC0-U61, Second Edition, Chapter 4: Programming Concepts and Data Structures, page 148.

 Binary is a notational system used to represent an “on” or “off” state in digital devices or systems. Binary uses only two symbols: 0 (off) and 1 (on). Binary is also known as base 2 notation, because each symbol represents a power of 2. Binary is the fundamental building block of all computer operations and data storage, as it can encode any type of information using sequences of bits (binary digits)1112. References := CompTIA IT Fundamentals (ITF+) Study Guide, 2nd Edition, Chapter 2: Computing Basics3; What is Binary? - Definition from Techopedia

A system usage agreement is a document that defines the rules and expectations for using a company’s IT resources, such as computers, networks, intranets, software, and data. A system usage agreement typically covers topics such as acceptable use, security, privacy, monitoring, ownership, and consequences of violations. A system usage agreement helps to protect the company’s assets, reputation, and legal compliance, as well as the users’ rights and responsibilities. Privacy expectations on a company intranet should be limited to what is stated in the system usage agreement, as the company has the right and the duty to monitor and control the intranet for business purposes. Users should not assume that their activities on the intranet are private or confidential, unless the system usage agreement explicitly guarantees such privacy. The other options, such as precedents, HR policy, and word of mouth, are not reliable or consistent sources of privacy expectations, as they may vary, change, or conflict with the system usage agreement or the law. References: CompTIA IT Fundamentals (ITF+) Certification Guide, page 100; 10 Intranet Best Practices for a Successful Intranet in 2021, point 7.

An input device is a hardware component that allows users to enter data or commands into a computer system. A flatbed scanner is an input device that scans documents or images and converts them into digital data that can be stored, edited, or printed. A flatbed scanner is connected to a laptop via a peripheral device interface, such as USB or Bluetooth. A laptop hard drive, a laptop keyboard, and a color printer are not input devices, but storage, input, and output devices respectively. Photographic prints are not devices at all, but physical objects that can be scanned by an input device. References: Chapter 8 I/O: Input/Output Device Interfaces - CompTIA IT Fundamentals+ (ITF+) Study Guide: Exam FC0-U61, Second Edition, CompTIA IT Fundamentals (ITF+) Certification Exam Objectives, CompTIA IT Fundamentals+ (Exam FC0-U61) Module 3 / Unit 2 / Using Device Interfaces