Free WGU Introduction-to-IT Practice Exam with Questions & Answers | Set: 4

To calculate a percentage of a price, you need a data type that can handle decimal values, as the result may not be a whole number. Here’s why a floating-point data type is appropriate:

1.Precision: Floating-point data types are designed to handle numbers that have a fractional part, which is essential for representing percentages accurately.

2.Calculation: When calculating 90% of a retail price, you multiply the price by 0.9. This operation requires a data type that can represent both the price and the resulting product with decimal precision.

3.Storage: Floating-point types can store a wide range of values with precision, making them suitable for financial calculations where the exact amount matters.

The other options are not suitable for the following reasons:

•A. Boolean: Can only represent two values, true or false.

•C. Auto-number: Typically used for unique identifiers and cannot represent fractional values.

•D. String: While it can represent a number as text, it is not suitable for calculations without conversion, which is inefficient and error-prone.

Publishing professional journals is a common task accomplished by IT professional organizations. In Information Technology, organizations such as ACM and IEEE publish peer-reviewed journals, magazines, conference proceedings, and technical standards that help share research, best practices, and emerging developments. These publications support professional learning, improve the quality of practice, and help define the body of knowledge for the field. Coordinating data exchange policies between states is more likely a government or intergovernmental function. Producing government regulations is the role of regulatory agencies, not professional associations. Brokering international trade agreements is handled by governments and international trade bodies rather than IT professional organizations. Professional organizations typically provide conferences, certifications or professional development programs, codes of ethics, special interest groups, and publications. Since journals and technical publications are a standard output of professional associations, the correct answer is publishing professional journals.

1.Ethical Leadership: Leaders should model ethical behavior, make decisions in the best interest of stakeholders, and ensure fairness. Ethical leaders influence followers to do the right thing.

2.Ethical Practices: Implement critical organizational practices related to ethics, including recruitment, training, policies, accountability, and decision-making.

3.Ethical Climate: Communicate ethical expectations beyond policies. Foster an environment where employees understand ethics and their implications.

•Verified Answer: IT allows businesses to have a global reach.

•Explanation: Information Technology enables companies to connect and operate on an international scale, facilitating global communication, transactions, and collaboration123.

•References: 123

Therefore, the correct answer is B. IT allows businesses to have a global reach.

The type of off-site storage that serves as an empty shell for operations during a natural disaster or terrorist attack is a Cold site1. Unlike a Hot site, which is fully operational and ready for immediate use, a Cold site requires setup and provisioning before it can be utilized1. It provides a cost-effective solution for disaster recovery while minimizing ongoing expenses.

The Internet plays two important roles in the business ecosystem:

1.Marketing of products and services: The Internet provides a platform for businesses to promote their products and services globally, reaching a wider audience.

2.Connecting remote employees and offices across wide distances: Through the Internet, remote employees can collaborate, communicate, and work effectively regardless of geographical boundaries.

References

1.The Role of Internet in Business

2.The great transformer: The impact of the Internet on economic growth

Integer data is a numeric data type used to store whole numbers without fractional or decimal parts. In Information Technology and database systems, integers are commonly used for counts, quantities, identifiers, and values that naturally occur as whole numbers. The value “the number of baseball games in a season” is a count and is expressed as a whole number, making it a clear example of integer data. By contrast, 3.14159 includes decimal places and is typically stored as floating-point or decimal data rather than integer. A single keystroke is character data because it represents a symbol such as A or 7, not a quantity. Whether a bank account does or does not have money in it is a two-state condition and is best represented as Boolean data, such as true or false. Using correct data types improves storage efficiency, supports accurate validation rules, and helps ensure correct query behavior. Therefore, the correct example of integer data is the number of baseball games in a season.

The phrase electronic components that could maintain exactly two states refers to digital switching behavior, where a device reliably represents binary values such as 0 and 1. In standard computing history, the second generation is recognized for introducing transistors as the key electronic component replacing vacuum tubes. Transistors are solid-state switching devices that can operate in two stable states, commonly described as on and off, which aligns directly with binary logic used in digital systems. This made computing hardware more compact, faster, and more reliable than first-generation systems, which relied on vacuum tubes that were bulky, generated significant heat, and failed more often. Transistors also consumed less power, enabling longer operating times and improved machine stability. These improvements helped expand computer usage in business and scientific environments and supported better programming tools, including early high-level languages. While earlier systems also used binary logic, the defining generational shift for stable, efficient two-state solid-state components is the transistor era. Therefore, the correct generation is the second generation.

Initiation is the project management life cycle stage that begins with establishing the project’s purpose and setting clear goals, often using frameworks such as SMART or CLEAR. In Information Technology project management, initiation defines what the project is trying to achieve, why it matters, and whether it is feasible. This stage commonly includes creating a project charter, identifying stakeholders, defining high-level scope, and securing authorization to proceed. SMART goals emphasize specific, measurable, achievable, relevant, and time-bound objectives, while CLEAR goals emphasize collaborative, limited, emotional, appreciable, and refinable objectives. Both frameworks help ensure the project begins with clear direction and measurable outcomes. Planning comes after initiation and focuses on detailed schedules, budgets, task breakdowns, risk plans, and resource assignments. Execution is where deliverables are built and work is performed. Closure finalizes acceptance and documents lessons learned. Because goal-setting and formal authorization are core features of the beginning phase, the correct stage is initiation.

1.Smaller Screens:

oVerified Answer: Handheld computers (such as smartphones and tablets) have smaller displays compared to desktop computers.

oExplanation: Handheld screens are typically around 3-5 diagonal inches for phones and up to 9-12 inches for tablets. In contrast, desktop screens range from 20-30 inches diagonally.

oReferences: 1

2.Processing Power and Customizability:

oVerified Answer: Desktop computers usually have more processing power, memory, and storage capacity than handheld devices.

oExplanation: Desktops are ideal for resource-intensive tasks like video editing, gaming, and software development. Handheld devices, while becoming more powerful, are still constrained by size and battery life considerations.