Introduction to IT - D322
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Free Introduction to IT - D322 Questions
Which translation method converts all source code into machine code for later execution?
- Interpreter
- Compiler
- Assembler
- Operating system
Explanation
Explanation:
Correct answer: (B.) Compiler
A compiler translates the entire source code into machine code before the program is executed, producing an executable file that can run later. This is different from an interpreter, which translates code line by line during execution. An assembler converts assembly language into machine code, while an operating system manages hardware and software resources.
What is the phase of the project management lite cycle that includes the development of the work breakdown structure (WBS)
-
Closure
-
Initiation
-
.Execution
-
Planning
Explanation
Correct Answer D: Planning
Explanation:
The Work Breakdown Structure (WBS) is created during the planning phase of the project management life cycle. It breaks the overall project into manageable sections or tasks, helping to define scope, allocate resources, and estimate time and cost.
Why the Other Options Are Incorrect:
A. Closure
This is the final phase, where deliverables are finalized, evaluated, and the project is closed out—not when the WBS is developed.
B. Initiation
This phase involves identifying the project need, feasibility, and stakeholders, but not detailed planning tools like the WBS.
C. Execution
This phase is where the actual work gets done based on the plan, including the WBS, but the WBS itself is not created here.
Which hardware component stores data and instructions while they are being used
-
Central processing unit (CPU)
-
Graphics processing unit (GPU)
-
Read-only memory (ROM)
-
Random-access memory (RAM)
Explanation
Correct Answer D: Random-access memory (RAM)
Explanation:
D. Random-access memory (RAM)
RAM temporarily stores data and instructions that the CPU needs while a program is running. It allows for quick access and manipulation, enabling fast performance during active processes.
Why the Other Options Are Incorrect:
A. Central processing unit (CPU)
The CPU processes data but does not store it for ongoing use. It retrieves data from RAM to perform tasks.
B. Graphics processing unit (GPU)
The GPU handles graphics rendering, not general-purpose data storage or instruction handling during use.
C. Read-only memory (ROM)
ROM stores permanent instructions, such as firmware, and cannot be used to store data dynamically during program execution.
What is the hardware component that consists of wires and protocols for moving information among internal and peripheral components?
- Motherboard
- Hard drive
- Expansion bus
- System clock
Explanation
Explanation:
Correct answer: (C.) Expansion bus
The expansion bus is a system of electrical pathways (wires) and communication protocols that allows data transfer between the CPU, memory, and peripheral devices such as printers, graphics cards, and storage controllers. It defines how information is transmitted internally within the computer and between connected components. The motherboard is the physical board that hosts components, but the expansion bus specifically refers to the communication infrastructure. The hard drive is for storage, and the system clock synchronizes operations.
What is the type of software with the purpose of creating business reports and newsletters?
- Spreadsheet
- Presentation
- Database
- Word processing
Explanation
Explanation:
Correct answer: (D.) Word processing
Word processing software is designed for creating, editing, and formatting text-based documents such as business reports, letters, and newsletters. It provides tools for text formatting, page layout, and document structuring. Spreadsheets are used for numerical data analysis, presentation software is used for slideshows, and databases are used for storing and managing structured data. Therefore, word processing is the most appropriate tool for reports and newsletters.
Which operating system is developed by Microsoft, Inc .?
-
Linux
-
Windows
-
iOs
-
macOS
Explanation
Correct Answer B: Windows
Explanation:
B: Windows
Windows is the operating system developed by Microsoft, Inc. It is one of the most widely used desktop and enterprise OS platforms globally.
Why the Other Options Are Incorrect:
A. Linux
Linux is an open-source operating system developed by community contributors, not by Microsoft.
C. iOS
iOS is the mobile operating system developed by Apple Inc. for iPhones and iPads.
D. macOS
macOS is also developed by Apple Inc., and it runs on Mac computers.
What is the type of software that has no intellectual property protections?
- Closed-source
- Freeware
- Public domain
- Shareware
Explanation
Explanation:
Correct answer: (C.) Public domain
Public domain software has no intellectual property protections, meaning it is not owned by any individual or organization and can be freely used, modified, and distributed without restriction. Closed-source software is proprietary, freeware is free but still copyrighted, and shareware is distributed under trial or limited-use conditions.
A final exam has 30 questions, and students have one hour to complete it. The exam is scheduled for 2.00 p.m. in room 126
Which turm describes the stalement, "Iis 1.50 p.m., sol should hoad to room 126," based on the data-informalion-knowledge-wisdom (DIKW) hierarchy
-
Information
-
Data
-
Wisdom
-
Knowledge
Explanation
Correct Answer C: Wisdom
Explanation:
Wisdom involves using data, information, and knowledge to make sound decisions. The statement shows that the person is applying knowledge (about time and exam location) to take appropriate action—heading to the exam room on time.
Why the Other Options Are Incorrect:
A. Information
Information would be the facts: "The exam is at 2:00 p.m. in room 126."
B. Data
Data includes isolated facts like "30 questions" or "1:50 p.m." with no context.
D. Knowledge
Knowledge involves understanding relationships—like knowing when and where the exam is. However, the decision to act on that knowledge elevates it to wisdom.
Which type of language is C++?
- Compiled
- Interpreted
- Machine
- Assembly
Explanation
Explanation:
Correct answer: (A.) Compiled
C++ is a compiled programming language, meaning its source code is translated into machine code by a compiler before it is executed. This results in efficient and fast-running programs. Interpreted languages are executed line by line at runtime, while machine and assembly languages are lower-level representations closer to hardware instructions.
What characterizes a star network topology?
- Every device being connected to exactly two other devices
- Devices being connected to a common communication line
- Every device being connected to every other device
- All devices being connected to a single central device
Explanation
Explanation:
Correct answer: (D.) All devices being connected to a single central device
A star network topology is defined by all devices (nodes) being connected to a single central device, such as a switch or hub. All communication between devices passes through this central point. This makes the network easy to manage and isolate faults, since failure of one device does not affect others, but failure of the central device can disrupt the entire network. The other options describe ring, bus, and mesh topologies respectively.
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