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>> Valid Exam Introduction-to-IT Preparation <<
When preparing to take the WGU Introduction to IT (Introduction-to-IT) exam dumps, knowing where to start can be a little frustrating, but with WGU Introduction-to-IT practice questions, you will feel fully prepared. Using our WGU Introduction-to-IT practice test ITdumpsfree, you can prepare for the increased difficulty on Introduction-to-IT Exam day. Plus, we have various question types and difficulty levels so that you can tailor your WGU Introduction-to-IT exam dumps preparation to your requirements.
NEW QUESTION # 75
What is the component of the data-information-knowledge-wisdom DIKW hierarchy that focuses on application?
Answer: C
Explanation:
Knowledge is the DIKW component that focuses on application. In Information Technology, knowledge is often described as information that has been understood, combined with experience, rules, procedures, and context so that it can guide action. While information answers questions like who, what, where, and when, knowledge supports how to do something and how to solve a problem. For example, in infrastructure administration, information could be the list of server performance metrics, while knowledge includes understanding how to interpret those metrics and apply troubleshooting steps to restore normal operation.
Data is raw and unprocessed, and information is processed data that has meaning in context. Wisdom is the highest level and involves judgment about what should be done, including ethical and strategic considerations.
Knowledge sits between information and wisdom and is closely linked with practice, skills, and the ability to apply what is known to real tasks. Therefore, the DIKW level that focuses on application is knowledge.
NEW QUESTION # 76
A person is updating procedures for handling integer data within a database. Which value is an example of this data type?
Answer: A
Explanation:
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.
NEW QUESTION # 77
Which type of communications media uses light waves to transmit data?
Answer: A
Explanation:
Fiber optic communication uses light waves to transmit data. Here's how it works:
1.Fiber Optic Cable Structure:
oA fiber optic cable consists of a core made of glass or plastic, surrounded by a cladding layer.
oThe core acts as a light guide, allowing light to travel through it by total internal reflection.
oThe cladding layer ensures that the light remains within the core.
2.Light Propagation:
oWhen data needs to be transmitted, a light source (usually a laser or LED) sends pulses of light into the fiber.
oThe light travels down the core, bouncing off the cladding due to total internal reflection.
oAs a result, the light signal remains confined within the core.
3.Advantages of Fiber Optics:
oHigh Bandwidth: Fiber optics can transmit large amounts of data quickly.
oLow Attenuation: Light signals experience minimal loss over long distances.
oImmune to Electromagnetic Interference: Unlike copper cables, fiber optics are not affected by electromagnetic fields.
oSecure: It's difficult to tap into fiber optic cables without detection.
4.Applications:
oInternet Backbone: Fiber optics form the backbone of the global internet, connecting continents.
oTelecommunications: Used for long-distance phone calls and high-speed internet.
oData Centers: Within data centers, fiber optics connect servers and storage devices.
oCable TV: Many cable TV networks use fiber optics for signal distribution.
References:
1.Li-Fi - Wikipedia
2.Types of Transmission Media - GeeksforGeeks
3.Welcome, Li-Fi: Technology uses light to transmit data
NEW QUESTION # 78
Which operation converts raw data into Information?
Answer: C
Explanation:
The operation that converts raw data into information is A. Processing.
Data transformation involves manipulating and reorganizing raw data to extract meaningful insights and patterns, resulting in useful information1.
References
1.Unleashing the Power of Data Transformation: How to Turn Raw Information into Actionable Insights
NEW QUESTION # 79
The primary database application used by a company is having issues, specifically with the layer that alters the database after receiving a request. What is the name of this layer of the database application?
Answer: B
Explanation:
The layer responsible for altering a database after receiving a request is the database management layer. In standard database architecture, the database management system acts as the software layer that processes requests, enforces rules, and performs operations such as insert, update, and delete. When an application or user submits a query or transaction, the database management layer interprets the request, checks permissions and constraints, manages concurrency so multiple users can work safely, and then applies changes to the stored data. It also helps ensure reliability through transaction controls such as commit and rollback, which protect data integrity when failures occur. The application layer is where the user interface and business logic typically run, but it does not directly manage the physical storage and controlled updates of the database. The flat-file layer is not a standard layer in modern database applications, and object-oriented layer refers to a programming design style rather than the core DBMS component. Therefore, the correct layer is the database management layer.
NEW QUESTION # 80
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