Introduction to IT - D322
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Free Introduction to IT - D322 Questions
What does an interpreter do
-
Translates source code into machine language
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Stores and manages data and develops data-driven reports
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Converts instructions one statement at a time when the program is run
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Manages computer hardware and software resources and provides common services for computer programs
Explanation
Correct Answer C: Converts instructions one statement at a time when the program is run
Explanation:
An interpreter reads and executes code line by line at runtime. It doesn’t produce a separate executable file, and the program must be interpreted each time it's run.
Why the Other Options Are Incorrect:
A. Translates source code into machine language
This describes what a compiler does, not an interpreter.
B. Stores and manages data and develops data-driven reports
This is the function of database management systems or reporting tools, not an interpreter.
D. Manages computer hardware and software resources and provides common services for computer programs
This describes an operating system, not an interpreter.
What is an example of computer hardware
-
User interface
-
Kemel
-
Motherboard
-
Operating system
Explanation
Correct Answer C: Motherboard
Explanation:
C. Motherboard
The motherboard is a physical component of a computer, making it an example of hardware. It is the main circuit board that houses the CPU, memory, and connectors for other components and peripherals.
Why the Other Options Are Incorrect:
A. User interface
A user interface is a software concept that allows interaction between the user and the computer (e.g., menus, icons).
B. Kernel
The kernel is the core part of an operating system, responsible for managing system resources. It is software, not hardware.
D. Operating system
The operating system (e.g., Windows, Linux, macOS) is a software platform that manages hardware and other software. It is not physical hardware.
Which method for transmitting data is specifically designed for distances up to 30 feet?
- Wide area network (WAN)
- Wi-Fi
- Bluetooth
- Near field communication (NFC)
Explanation
Explanation:
Correct answer: (C.) Bluetooth
Bluetooth is specifically designed for short-range wireless communication, typically up to about 30 feet (around 10 meters) for standard Bluetooth devices. It is commonly used for connecting peripherals such as headphones, keyboards, and smartphones. Wi-Fi supports much longer ranges, WAN covers large geographic areas, and NFC is designed for extremely short distances (usually a few centimeters), not up to 30 feet.
A programmer is working with C. Which type of language is this?
- Interpreted
- Assembly
- Compiled
- Machine
Explanation
Explanation:
Correct answer: (C.) Compiled
C is a compiled language, meaning source code written in C is translated by a compiler into machine code before it is executed. This differs from interpreted languages (which run line-by-line), assembly language (low-level symbolic code), and machine language (binary instructions directly executed by the CPU).
A production machine runs from 8:00 a m. to 5.00 p.m., outputting 1,200 units per hour.
Which component of the dala-inforation-knowledge-wisdom (DIKW) hierarchy is exemplified by the statement, "The machine starts at 8:00 a.m."in this scenario
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Information
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Wisdom
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Data
-
Knowledge
Explanation
Correct Answer A: Information
Explanation:
The statement "The machine starts at 8:00 a.m." represents information because it gives contextual meaning to a data point (the time). It answers a specific question (When does the machine start?) and has practical use.
Why the Other Options Are Incorrect:
B. Wisdom
Wisdom involves applying knowledge to make decisions. This statement is just a fact, not a decision or action.
C. Data
"8:00 a.m." alone is data, but saying “the machine starts at 8:00 a.m.” gives context—making it information.
D. Knowledge
Knowledge involves understanding patterns or relationships. This statement doesn’t show deeper analysis—just a known fact.
Which hardware component includes registers, a logic component, and an arithmetic component
-
Random-access memory (RAM)
-
Central processing unit (CPU)
-
Read-only memory (ROM)
-
Graphics processing unit (GPU)
Explanation
Correct Answer B: Central processing unit (CPU)
Explanation:
B. Central processing unit (CPU)
The CPU is the brain of the computer. It contains registers (small storage areas), an arithmetic logic unit (ALU) for performing calculations and logic operations, and a control unit for directing operations. These components work together to execute instructions and manage tasks.
Why the Other Options Are Incorrect:
A. Random-access memory (RAM)
RAM stores data temporarily for quick access, but it does not perform arithmetic or logic operations.
C. Read-only memory (ROM)
ROM stores permanent data such as firmware, but it doesn’t have the processing components found in a CPU.
D. Graphics processing unit (GPU)
While a GPU performs arithmetic and logic specific to graphics, it is specialized and does not include general-purpose registers and control units like the CPU does.
Which type of storage typically uses innovative equipment
-
Hot
-
Cold
-
Off-site
-
On-site
Explanation
Correct Answer A: Hot
Explanation:
Hot storage refers to data that must be accessed frequently and quickly. It typically uses innovative, high-performance equipment like solid-state drives (SSDs) and advanced cloud infrastructure to ensure speed and reliability.
Why the Other Options Are Incorrect:
B. Cold
Cold storage is for infrequently accessed data and often uses low-cost, slower equipment (e.g., magnetic tape, archival drives).
C. Off-site
Off-site refers to the location, not the speed or technology of storage.
D. On-site
On-site also refers to the physical location and doesn’t inherently imply use of innovative equipment.
What is the component of the data-information-knowledge-wisdom (DIKW) hierarchy that focuses on application?
- Information
- Data
- Knowledge
- Wisdom
Explanation
Explanation:
Correct answer: (C.) Knowledge
In the DIKW hierarchy, knowledge is the level where information is understood and applied. It goes beyond simply organizing or interpreting facts (information) and involves using that understanding to perform tasks, solve problems, or make informed decisions. While wisdom involves judgment and choosing the best action, the core focus of application of learned information is knowledge.
Which part of the data-information-knowledge-wisdom (DIKW) hierarchy involves recognizing the right thing to do?
- Knowledge
- Information
- Wisdom
- Data
Explanation
Explanation:
Correct answer: (C.) Wisdom
In the DIKW hierarchy, wisdom is the highest level and involves sound judgment, ethical reasoning, and the ability to determine the right course of action in a given situation. While knowledge involves understanding and applying information, wisdom goes further by integrating experience, context, and values to decide what should be done.
What is one of the three broad categories of risks that a project may encounter
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Risks of disagreement
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Risks of the unknown
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Risks in planning
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Risks of dependencies
Explanation
Correct Answer D: Risks of dependencies
Explanation:
Dependency risks arise when a project task depends on the completion of another task, deliverable, or external input. These are one of the three broad risk categories in project management, along with technical risks and external risks.
Why the Other Options Are Incorrect:
A. Risks of disagreement
This refers more to interpersonal or stakeholder conflict, which is not classified as one of the three main project risk categories.
B. Risks of the unknown
While uncertainty is a general feature of risk, “risks of the unknown” is too vague to be a formal category.
C. Risks in planning
Planning may introduce risk, but it is not one of the three main categories. Instead, it’s part of how you manage and mitigate risks.
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