Introduction to IT - D322
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Free Introduction to IT - D322 Questions
There are 30 questions on a final exam. The exam will be given in room 126 al 2:00 p.m., and students have one hour to complete il
What is the data-information-knowledge-wisdom (DIKW) pyramid component exemplified by the statement, "1 have extra lime, so I should review my answers"
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Wisdom
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Knowledge
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Data
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Information
Explanation
Correct Answer A: Wisdom
Explanation:
The statement "I have extra time, so I should review my answers" reflects the application of knowledge to make a thoughtful, purposeful decision. This is the hallmark of wisdom—using what you know to take the best course of action.
Why the Other Options Are Incorrect:
B. Knowledge
Knowledge is understanding that extra time remains and that reviewing is beneficial—but not yet acting on it.
C. Data
Data would be facts like "there are 30 questions" or "15 minutes remain."
D. Information
Information is data with context, like "the exam is one hour long." It doesn't include making decisions or applying judgment.
Which component is an important strategy of business continuity
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Data backups
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Paraliel processing
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Service variety
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User authentication
Explanation
Correct Answer A: Data backups
Explanation:
Data backups are a critical part of business continuity planning. They ensure that an organization can recover essential information and resume operations after events like system failures, cyberattacks, or natural disasters.
Why the Other Options Are Incorrect:
B. Parallel processing
Used for performance optimization, not primarily for ensuring business continuity after disruptions.
C. Service variety
Offering a variety of services is a business strategy, not a continuity plan component.
D. User authentication
Important for security, but not a primary strategy for maintaining operational continuity in the face of disruptions.
What is the name of the networking technology that reduces network traffic on a local area network by management of network messages
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Firewall
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Repeater
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Server
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Switch
Explanation
Correct Answer D: Switch
Explanation:
A switch is a networking device that filters and forwards data only to the specific device that needs it, rather than broadcasting to all devices on the network. This targeted message delivery significantly reduces network traffic and improves performance on a local area network (LAN).
Why the Other Options Are Incorrect:
A. Firewall
A firewall controls access to or from a network for security purposes but does not manage local network traffic to reduce it.
B. Repeater
A repeater is used to extend the range of a network by amplifying signals, but it does not manage or reduce traffic.
C. Server
A server provides services or resources to other computers but is not responsible for managing or reducing general network traffic.
A database variable needs to be restricted to only accept several alphanumeric characters.
What is the name of the appropriate data type
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Character
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Floating point
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Character string
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Integer
Explanation
Correct Answer C: Character string
Explanation:
C. Character string
A character string (often referred to as VARCHAR or TEXT in databases) is the correct data type for storing multiple alphanumeric characters such as names, addresses, or codes.
Why the Other Options Are Incorrect:
A. Character
This holds a single character, not a sequence of characters.
B. Floating point
This stores decimal numbers, not letters or a mix of letters and numbers.
D. Integer
This stores whole numbers only, not alphanumeric content.
What is the hardware component that contains the circuitry for coordinating computer activity
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Read-only memory (ROM)
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Graphics processing unit (GPU)
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Random-access memory (RAM)
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Central processing unit (CPU)
Explanation
Correct Answer D: Central processing unit (CPU)
Explanation:
D. Central processing unit (CPU)
The CPU is responsible for coordinating all computer activity. It contains the control unit, which directs operations within the computer, and the arithmetic logic unit (ALU), which performs calculations and logical operations. It interprets and executes instructions from both hardware and software.
Why the Other Options Are Incorrect:
A. Read-only memory (ROM)
ROM stores permanent data, such as firmware, but does not coordinate system operations.
B. Graphics processing unit (GPU)
The GPU is specialized for graphics rendering, not general coordination of system processes.
C. Random-access memory (RAM)
RAM temporarily stores data for active tasks but does not manage or coordinate processes.
Which type of software provides the infrastructure needed to run other types of software
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System
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Shareware
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Productivity
-
Collaboration
Explanation
Correct Answer A: System
Explanation:
A. System
System software provides the core infrastructure for running application software and managing hardware. Examples include operating systems (like Windows, macOS, or Linux), device drivers, and utilities. These are essential for supporting and executing all other types of software.
Why the Other Options Are Incorrect:
B. Shareware
Shareware refers to trial-based software that users can try before purchasing. It does not provide system infrastructure.
C. Productivity
Productivity software includes tools like word processors and spreadsheets, which rely on system software to function but do not provide infrastructure themselves.
D. Collaboration
Collaboration software enables team interaction and project management (e.g., Zoom, Google Workspace), but it runs on top of system software, not instead of it.
What is the component of the data-information-krowledge-wisdom (DIKW) hierarchy that includes basic observations
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Data
-
Knowledge
-
Wisdom
-
Information
Explanation
Correct Answer A: Data
Explanation:
Data represents raw facts and basic observations without context or interpretation. It's the foundational layer of the DIKW hierarchy and is later processed into information.
Why the Other Options Are Incorrect:
B. Knowledge
Knowledge involves interpreting relationships between pieces of information, not raw observations.
C. Wisdom
Wisdom is the application of knowledge in decision-making, not the collection of raw facts.
D. Information
Information is processed data that provides meaning—but it begins with data.
There are 30 questions on a final exam. The exam will be given in room 126 at 2.00 p.m., and students have one hour to complete it
What is the data-information-knowledge-wisdom (DIKW) pyramid component exemplified by the value "2.00"
-
Information
-
Data
-
Wisdom
-
Knowledge
Explanation
Correct Answer B: Data
Explanation
The value "2:00" by itself is a raw fact without context, making it data in the DIKW hierarchy. It only becomes information when it's connected to the exam schedule, and becomes knowledge or wisdom when it's used for planning or decision-making.
Why the Other Options Are Incorrect:
A. Information
If the statement were "The exam is at 2:00 p.m.," it would be information. But "2:00" alone is just a data point.
C. Wisdom
Wisdom involves applying knowledge to make decisions—this doesn't demonstrate that.
D. Knowledge
Knowledge involves understanding relationships or patterns. A standalone time doesn't show that.
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 a professional organization that publishes a set of ethical IT guidelines
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National Institute of Standards and Technology (NIST)
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Association of Information Technology Professionals (AITP)
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National Security Agency (NSA)
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Institute for Telecommunication Sciences (ITS)
Explanation
Correct Answer B: Association of Information Technology Professionals (AITP)
Explanation:
The AITP is a professional organization that promotes ethical standards, career development, and continuing education in the IT field. It provides a code of ethics and guidelines for professional behavior among IT practitioners.
Why the Other Options Are Incorrect:
A. National Institute of Standards and Technology (NIST)
Focuses on technical standards and cybersecurity frameworks, not ethics guidelines.
C. National Security Agency (NSA)
A government agency focused on intelligence and security, not a professional body that publishes ethics codes.
D. Institute for Telecommunication Sciences (ITS)
A research division under the Department of Commerce, not a professional organization for IT ethics.
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