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WGU Introduction-to-IT Exam Syllabus Topics:

Topic
Details

Topic 1

• Data management functions in databases: This section of the exam measures the skills of Systems Administrators and summarizes the basic functions involved in managing data within databases. It introduces how data is stored, organized, and accessed, giving learners a simple understanding of how essential database tasks support business information needs.

Topic 2

• Role of the IT department in IT infrastructure management, disaster recovery, and business continuity processes: This section of the exam measures skills of Systems Administrators and explains how the IT department manages infrastructure and supports recovery processes to keep operations running during disruptions. It introduces how IT teams protect systems, restore services, and maintain continuity for the business.

Topic 3

• Introduction to IT: This section of the exam measures the skills of IT Support Specialists and explains information technology as a discipline, along with how the IT department supports business activities. It provides a simple overview of different IT areas such as systems and services, networks and security, scripting and programming, data management, and the business side of IT. Learners see how these areas connect with each other and how they contribute to organizational operations.

Topic 4

• Basics of Programming Languages in Software Development: This section of the exam assesses the skills of IT Support Specialists and covers the fundamental purpose of programming languages in software development. It provides a simple description of how programming works and how developers use languages to build tools and applications.

Topic 5

• Structure, function, and security associated with networks: This section of the exam measures skills of IT Support Specialists and outlines the basic components of networks, how they operate, and the security needed to protect them. It provides a simple view of how network structures support communication and how security measures protect information.

 

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WGU Introduction to IT Sample Questions (Q17-Q22):

NEW QUESTION # 17
What translates and executes source code into machine language one line at a time?

• A. Interpreter
• B. Compiler
• C. Operating system
• D. Assembler

Answer: A

Explanation:
An interpreter translates and executes source code one line at a time. In Information Technology, interpretation is a method of program execution where each statement is read, translated into machine-level actions, and executed immediately. This allows programmers to test and debug quickly because errors are often reported at the line where execution stops. Many scripting languages and interactive environments use interpreters, supporting rapid development and flexibility. Unlike a compiler, which translates the entire program into a machine code file that can be executed later, an interpreter generally requires the source code or intermediate representation to be present at runtime. An assembler is used for assembly language and converts mnemonic instructions into machine code, but it is not typically described as executing source code one line at a time. The operating system manages system resources and provides services, but it is not the tool that translates programming language source code into machine language during execution. Therefore, the correct answer for translating and executing code line by line is interpreter.

 

NEW QUESTION # 18
Which component comes in two varieties, one that mechanically writes binary data onto spinning magnetic disks and one that writes data with no mechanical parts?

• A. Motherboard
• B. Hard drive
• C. System clock
• D. Expansion bus

Answer: B

Explanation:
The hard drive category includes two common storage varieties: traditional hard disk drives and solid-state drives. A hard disk drive stores binary data magnetically on spinning platters and uses mechanical parts such as a rotating motor and moving read and write heads. In contrast, a solid-state drive stores data using non- volatile flash memory with no moving mechanical components. In Information Technology hardware concepts, both serve the same role as secondary storage, meaning they store files, applications, and the operating system persistently even when power is off. Hard disk drives are often lower cost per gigabyte and are common in large-capacity storage, while solid-state drives provide faster access times, improved performance, and better resistance to physical shock. The motherboard is the main circuit board, the system clock provides timing pulses, and an expansion bus is a communication pathway for add-on devices. Since the question describes mechanical and non-mechanical storage types, the correct component is the hard drive.

 

NEW QUESTION # 19
Which piece of network equipment extends the cable range and allows connections to be made by increasing the signal strength?

• A. Firewall
• B. Router
• C. Repeater
• D. Switch

Answer: C

Explanation:
A repeater extends cable range by regenerating or amplifying a signal so it can travel farther without degrading. In Information Technology networking, signals weaken over distance due to attenuation and interference. A repeater receives the incoming signal, cleans or reconstructs it, and then retransmits it at full strength. This allows network segments to exceed the normal maximum cable length limits for a given standard and helps maintain reliable communication. Repeaters are commonly associated with the physical layer of networking because they deal with signal transmission rather than packet routing or traffic decisions.
A switch operates mainly at the data link layer and forwards frames based on MAC addresses within a local network, but it does not primarily exist to boost signal strength. A router connects different networks and forwards packets using IP addressing and routing tables. A firewall is a security device that filters traffic based on rules to protect networks. Since the question focuses on increasing signal strength to extend range, the correct equipment is a repeater.

 

NEW QUESTION # 20
Which data type should be used to calculate 90% of the retail price of an item?

• A. Auto-number
• B. Boolean
• C. Floating-point
• D. String

Answer: C

Explanation:
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.
References: The decision to use a floating-point data type for percentage calculations is supported by best practices in programming and database design, as discussed in various programming forums and documentation123. These sources recommend using decimal or floating-point types for financial calculations to ensure accuracy and avoid errors that can arise from binary floating-point representations2.

 

NEW QUESTION # 21
How does high-level programming language differ from low-level language?

• A. The high-level code is written using words from the English language.
• B. The high-level code is written in machine language.
• C. The high-level code is written by translating it to machine language.
• D. The high-level code is written at the binary level.

Answer: A

 

NEW QUESTION # 22
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