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| Certification Vendor: | Western Governors University (WGU) |
|---|---|
| Exam Name: | Introduction to IT Objective Assessment |
| Exam Number: | C182 (also referenced as D322 in some curriculum updates) |
| Certificate Validity Period: | Not applicable (course credit; no external certification validity period) |
| Passing Score: | Competency-based (WGU passing standard: 'Competent' / typically equivalent to ~70%+ benchmark, not publicly fixed) |
| Exam Price: | Included in WGU tuition (no separate exam fee) |
| Real Exam Qty: | Approximately 60–70 multiple-choice questions (varies by version) |
| Exam Format: | Online proctored Objective Assessment, Multiple-choice questions, Scenario-based questions |
| Exam Duration: | 120 minutes |
| Available Languages: | English |
| Recommended Training: | WGU Course Resources (official learning materials) General IT Fundamentals Learning Path (Khan Academy Computing) |
| Exam Registration: | WGU Student Portal (course exam scheduling) |
| Sample Questions: | WGU Introduction-to-IT Sample Questions |
| Exam Way: | Online proctored Objective Assessment (remote exam) |
| Pre Condition: | None (introductory foundational course in WGU IT degree program) |
| Official Syllabus URL: | https://www.wgu.edu/online-it-degrees/information-technology-bachelors-program.html |
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質問 # 137
Which two actions are included in the role of a Domain Name System (DNS)?
Choose 2 answers
正解：B、C
解説：
1.Translates human-friendly aliases into IP addresses: DNS serves as the "phone book" of the internet, converting user-friendly domain names (like www.example.com) into numerical IP addresses (such as
192.0.2.1) that computers and network devices use to locate one another on the internet12.
2.Stores IP addresses and aliases in a table on the server: DNS servers maintain records that map domain names to corresponding IP addresses. These records are stored in distributed databases across various DNS servers, ensuring efficient and reliable resolution of domain names1.
References
1.GeeksforGeeks: What is Domain Name System (DNS)?
2.Cloudflare: What is DNS? How DNS works
質問 # 138
Which generation of computing is associated with integrated circuits?
正解：A
解説：
The third generation of computing is strongly associated with the introduction and widespread use of integrated circuits. Integrated circuits, often called ICs, combine many electronic components such as transistors, resistors, and capacitors onto a single silicon chip. This integration dramatically reduced the physical size of computers while increasing processing speed, reliability, and efficiency. Compared with second-generation transistor-based computers, third-generation machines produced less heat, required less maintenance, and offered better overall performance. This era also enabled more sophisticated computer designs, supporting improved input and output devices and stronger system capabilities for business and scientific computing. In many standard Information Technology references, the generational shift is summarized as first generation using vacuum tubes, second generation using transistors, third generation using integrated circuits, and fourth generation using microprocessors. Fifth generation is generally linked with artificial intelligence and advanced parallel processing concepts rather than the initial adoption of ICs.
Therefore, the generation most clearly identified with integrated circuits is the third generation.
質問 # 139
What is the correct definition of a join query?
正解：A
解説：
A join in the context of a database, specifically SQL, is an operation that combines rows from two or more tables based on a related column between them. The purpose of a join is to retrievedata that exists across multiple tables which share a common field or key. The process typically involves the following steps:
1.Identify the Tables: Determine the tables that you want to join.
2.Determine the Common Column(s): Find the column(s) that the tables share, which will be used to match rows.
3.Choose the Type of Join: Decide on the type of join that suits your needs (INNER, LEFT, RIGHT, FULL).
4.Construct the Join Query: Write the SQL statement that specifies the join condition using the ON keyword.
5.Execute the Query: Run the query in the database to retrieve the combined results.
For example, if you have an Orders table and a Customers table, and both have a CustomerID column, you can join them on this column to retrieve a list of orders along with the customer information for each order.
References: The definition and explanation are based on standard SQL documentation and educational resources such as W3Schools1 and GeeksforGeeks2, which provide comprehensive guides on SQL joins.
質問 # 140
What is the arrangement of network devices in a mesh topology?
正解：B
解説：
In a mesh topology, every device is connected to every other device. In Information Technology networking fundamentals, a full mesh topology provides multiple direct paths between nodes, which improves redundancy and fault tolerance. If one connection fails, data can often be rerouted through other links, reducing the chance of total network disruption. This makes mesh designs valuable for mission-critical environments where high availability is required. However, the number of connections grows quickly as devices increase, which raises cost, complexity, and management overhead. The other options describe different topologies: a star topology connects all devices to a central device such as a switch, a bus topology connects devices to a single shared communication line, and a ring topology connects each device to exactly two others, forming a loop. Because the defining feature of a mesh is the extensive interconnection among devices, the correct description is that every device is connected to every other device. Therefore, the correct answer is option C.
質問 # 141
Which statement best describes the purpose of a business intelligence (BI) system?
正解：A
解説：
Business Intelligence (BI) systems are designed to analyze data and provide actionable information that aids in strategic decision-making. The purpose of a BI system is not merely to integrate departments or provide access to raw data, nor is it limited to using only proprietary data. Instead, BI systems enable organizations to make informed decisions based on the analysis of a wide range of data. Here's how they work:
1.Data Collection: BI systems collect data from various sources within the organization, including all departments.
2.Data Storage: The collected data is then stored in a secure and accessible manner, often in data warehouses.
3.Data Analysis: BI tools analyze this data to find patterns, trends, and insights. This analysis can include descriptive analytics to understand past performance and predictive analytics to forecast future trends.
4.Information Presentation: The insights are then presented in an understandable format, such as reports or dashboards, which decision-makers can use to guide their strategic choices.
References: The information provided is corroborated by multiple sources that describe the role and purpose of BI systems. They emphasize the importance of BI in analyzing data to support business decisions, rather than just integrating departments or providing raw data access1234. These sources outline the BI process from data collection to analysis and reporting, highlighting its value in strategic decision-making.
質問 # 142
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