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NEW QUESTION # 112
An IT department employee is identifying the Boolean data in a system. What is one example of this type of data?
Answer: D
Explanation:
Boolean data represents a logical value with only two possible states, typically true or false. In Information Technology, Boolean types are foundational for conditions, comparisons, control flow, and database fields that store yes-or-no style information. The example, "Whether a number is positive or not," fits Boolean data because the statement can be evaluated as true if the number is greater than zero, or false otherwise. This two- state characteristic is exactly what defines Boolean logic. The other options describe different data types: the first letter of a last name is a character, a full last name is a character string, and the price of gas in dollars and cents is numeric with decimals, typically stored as a floating-point or fixed-point decimal type. Boolean fields are widely used in systems for flags such as active or inactive, approved or not approved, and eligible or not eligible. Therefore, the correct example of Boolean data is whether a number is positive or not.
NEW QUESTION # 113
Which technology is characteristic of second-generation computing?
Answer: D
Explanation:
Second-generation computers, roughly from the mid-1950s to the early 1960s, are characterized by the replacement of vacuum tubes with transistors as the primary electronic switching device. Transistors were a major improvement because they were smaller in size, generated far less heat, used less electrical power, and were more reliable than vacuum tubes. This reduced maintenance needs and hardware failures, making computers more stable and suitable for wider organizational use. Performance also improved because transistors could switch faster than vacuum tubes, enabling quicker processing and more efficient operation.
During this era, computers also advanced in software support, with greater use of assembly language and the introduction of early high-level programming languages such as FORTRAN and COBOL. These developments made programming more practical and increased adoption in scientific calculations and business data processing. Microprocessors belong to a much later stage, artificial intelligence is typically linked to later generations, and nanotechnology is a modern fabrication concept. Therefore, transistors are the defining technology of second-generation computing.
NEW QUESTION # 114
What is the role of professional associations regarding ethics standards in the IT profession?
Answer: B
Explanation:
1.Providing Valuable Ethical Guidelines to IT Professionals:
oProfessional associations establish codes of ethics and codes of conduct that outline expected behavior for IT professionals.
oThese guidelines address ethical considerations related to privacy, security, honesty, and professional responsibility.
oBy adhering to these standards, IT professionals contribute to the well-being of society and uphold the public good1.
2.Engaging in the Development and Adoption of Industry-Leading Practices:
oAssociations collaborate with industry experts to develop globally-accepted best practices.
oThey promote ethical behavior by disseminating these practices through seminars, conferences, and certification courses.
oBy following these standards, IT professionals ensure the integrity and trustworthiness of their work2.
References
*ACM Code of Ethics and Professional Conduct: The ACM (Association for Computing Machinery) provides a comprehensive code of ethics for computing professionals.
*Chapter 8: The Making of a Profession: Values, Ethics, and Conducts: This chapter discusses the role of professional associations in establishing ethical guidelines.
*Code of Professional Ethics | IS/IT Certifications | ISACA: ISACA (Information Systems Audit and Control Association) emphasizes compliance and governance in IT ethics3.
*Ethics and the IT Professional | EDUCAUSE Review: Various associations, including AITP (Association of Information Technology Professionals), contribute to ethical guidance
NEW QUESTION # 115
What is one of the factors that determines the choice of an operating system?
Answer: D
Explanation:
One major factor that determines the choice of an operating system is the device type. Operating systems are designed for specific categories of hardware and usage environments, such as desktop computers, servers, mobile phones, tablets, embedded devices, and network appliances. In Information Technology fundamentals, selecting an operating system begins with identifying the platform requirements, including processor architecture, memory limits, battery needs, and how the device will be used. For example, iOS and Android are designed for mobile devices, Windows and macOS are designed for desktops and laptops, and server operating systems are tuned for reliability, remote administration, and multi-user workloads. While driver compatibility is also an important consideration, many curricula treat it as a sub-factor related to hardware support within a chosen device category. Number of devices relates more to licensing and deployment planning, and coding language is not a direct determinant of which operating system must be used. Therefore, device type is a correct factor in choosing an operating system.
NEW QUESTION # 116
Which item is an input device?
Answer: A
Explanation:
An input device is any hardware device that sends data to a computer, allowing you to interact with and control it. Input devices enable users to input information into the computer system. Let's break down the options:
*Flash Drive (A): A flash drive (also known as a USB drive or thumb drive) is a storage device, not an input device. It allows you to store and transfer data but does not directly input data into the computer.
*CD (B): A CD (compact disc) is also a storage medium, typically used for storing audio, video, or software files. Like a flash drive, it is not an input device.
*Scanner : A scanner is a classic example of an input device. It captures physical documents, images, or text and converts them into digital data that the computer can process. Scanners are commonly used for tasks like digitizing photos, creating PDFs, or scanning documents.
*Printer (D): A printer is an output device, not an input device. It produces hard copies (printed documents) based on digital data received from the computer.
In summary, the correct answer is C. Scanner, as it directly inputs data into the computer system.
References:
1.Computer Hope: What is an Input Device?
2.BBC Bitesize: What are input and output devices?
NEW QUESTION # 117
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