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CAT > Theory > Flashcards

Theory Flashcards

1
Q

What does RFID stand for?

A

Radio-Frequency Identification

A technology that uses electromagnetic fields to automatically identify and track tags attached to objects.

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2
Q

What are the main components of RFID technology?

A

A tag and a reader

The tag has an embedded chip and antenna, while the reader detects the tag.

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3
Q

What is the definition of data storage capacity?

A

The amount of data a storage device can hold, usually measured in bytes

Common units include MB, GB, and TB.

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4
Q

What is ROM?

A

Read-Only Memory

A type of non-volatile memory that stores crucial information needed to boot the computer.

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5
Q

What are the key features of ROM?

A
  • Retains data when powered off
  • Not easily modified by the user

Ensures that critical boot data remains secure.

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6
Q

What is the function of RAM?

A

Temporarily stores data that is actively being used or processed

Allows for quick read and write access.

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7
Q

What does CPU stand for?

A

Central Processing Unit

The primary component responsible for executing instructions from programs.

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8
Q

What is a memory card reader?

A

A device that allows users to read and write data to and from memory cards

Commonly used in cameras and smartphones.

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9
Q

What is the role of the PSU in a computer?

A

Converts electrical power from an outlet into usable power for the computer’s internal components

Provides necessary voltage and current for operation.

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10
Q

List three functions of an Operating System (OS).

A
  • Hardware Management
  • User Interface
  • Resource Allocation

Examples include Windows OS, macOS, Linux.

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11
Q

What is the difference between application software and system software?

A
  • Application Software: Designed for specific user tasks
  • System Software: Maintains basic functions of a computer

System software acts as a bridge between hardware and applications.

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12
Q

What are the benefits of cloud software in schools?

A
  • Scalability
  • Accessibility
  • Cost Efficiency

Reduces the need for physical storage and maintenance.

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13
Q

What is a hot swappable device?

A

A device that can be inserted or removed without turning off the computer

Examples include USB devices and external hard drives.

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14
Q

What is a terabyte (TB)?

A

A unit of digital information storage equal to 1,024 gigabytes

Commonly used to measure the capacity of large storage devices.

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15
Q

Define RSI.

A

Repetitive Strain Injury

A condition resulting from repetitive movements, often affecting hands, wrists, and arms.

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16
Q

What are some common causes of RSI?

A
  • Typing
  • Using a mouse
  • Playing musical instruments

Particularly in computer users who do not follow ergonomic guidelines.

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17
Q

What is a personal computer (PC)?

A

A versatile computing device designed for individual use

Can be used for various tasks including word processing and gaming.

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18
Q

What does EULA stand for?

A

End User License Agreement

A legal contract outlining the terms and conditions under which software can be used.

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19
Q

What is an accelerometer?

A

A sensor that measures acceleration forces acting on an object

Commonly used in mobile devices for various applications.

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20
Q

What is a file path?

A

A string that specifies the location of a file or folder within a file system

It indicates the route to access the file.

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21
Q

What is source code?

A

The human-readable set of instructions written in a programming language

It defines the functionality and behavior of a software program.

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22
Q

Define proprietary software.

A

Software owned by a specific individual or organization

Typically not freely available for public use or distribution.

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23
Q

What is a Local Area Network (LAN)?

A

A network covering a small geographic area, such as a single building

Connects computers and devices for resource sharing.

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24
Q

What is a Wireless Local Area Network (WLAN)?

A

A LAN that uses wireless technology to connect devices

Provides mobility and flexibility by eliminating the need for physical cables.

25
Q

What does PAN stand for?

A

Personal Area Network

A small network covering a very limited range.

26
Q

What is a Metropolitan Area Network (MAN)?

A

A network that covers a larger geographic area than a LAN but smaller than a WAN

Typically connects multiple LANs in nearby locations.

27
Q

What does WAN stand for?

A

Wide Area Network

A network that spans a large geographic area, often connecting cities or countries.

28
Q

Define data synchronization.

A

The process of ensuring data consistency across multiple devices or locations

Vital for data accuracy and accessibility.

29
Q

What is the difference between web-based and ISP-based email?

A
  • Web-based: Accessible via any internet-connected device
  • ISP-based: Linked to the internet service provider

ISP-based limits access to devices connected to the provider’s network.

30
Q

What are green computing initiatives?

A
  • Cloud Computing
  • Reduces energy consumption by centralizing data storage

Used for data storage, software applications, and backup solutions.

31
Q

What is the recommended internet connection for schools?

A

Fiber Optic

Provides high-speed, reliable internet for high data usage needs.

32
Q

What is the definition of a network?

A

When two or more devices are connected

Enables communication and resource sharing.

33
Q

What is the disadvantage of networks?

A

Potential violation of privacy or leakage of confidential information

Important to maintain network security.

34
Q

What is the function of a router?

A

Connects devices, ensuring seamless data flow

Essential for communication between devices.

35
Q

How is internet speed measured?

A

Mbps (Megabits per second)

A standard measurement for internet connectivity.

36
Q

What is the role of a server in school networks?

A

Stores and manages data, applications, and services

Provides centralized access to resources.

37
Q

What is the impact of Intellectual Property (IP)?

A

Protects competitive advantage, innovation, and confidentiality

Important for sponsorship, partnerships, and recruitment.

38
Q

What is the definition of ergonomics in computer use?

A

The study of people’s efficiency in their working environment

Important for preventing strain and improving comfort.

39
Q

What is the digital divide?

A

The gap between individuals with access to digital technology and those without

Affects educational and economic opportunities.

40
Q

Define a cracker.

A

An individual who breaks into computer systems with malicious intent

Often aims to exploit vulnerabilities for theft or damage.

41
Q

What is one advantage of added fuel load in F1 cars?

A

Extended stint length

Allows cars to stay on track longer without refueling.

42
Q

What is a disadvantage of added fuel load in F1 cars?

A

Decreased speed

Heavier fuel load affects overall performance.

43
Q

What are common actions performed by crackers?

A

Bypassing software protection mechanisms, stealing sensitive data, distributing malware, gaining unauthorized access to networks or systems

Crackers are typically associated with malicious activities that compromise security.

44
Q

How are crackers perceived in terms of ethical implications?

A

They are often viewed negatively due to potential financial and security repercussions.

Their actions can lead to significant harm for individuals and organizations.

45
Q

What is an advantage of added fuel load in F1 cars?

A

Extended stint length, flexibility in race strategy

More fuel allows cars to stay on track longer without refueling and adapt strategies based on competitors.

46
Q

What is a disadvantage of added fuel load in F1 cars?

A

Decreased speed and agility

Extra weight affects acceleration, braking, and cornering.

47
Q

How do you calculate fuel consumption per lap?

A

Total fuel used in the race divided by the number of laps driven

This provides an average fuel consumption metric.

48
Q

What does the term ‘digital divide’ refer to?

A

The gap between those with access to digital technology and the internet and those without.

This divide can affect educational and economic opportunities.

49
Q

What are health issues caused by excessive screen time on students?

A

Eye strain, obesity

These health issues can impact academic performance and overall well-being.

50
Q

What is cross-referencing in effective research techniques?

A

Checking multiple credible sources to confirm the accuracy of information.

This helps ensure the reliability of the data used in research.

51
Q

What is the purpose of the COUNTA function in spreadsheets?

A

Counts all non-empty cells within a specified range

Example: =COUNTA(A1:A10) counts all cells that are not blank.

52
Q

What does the COUNT function do in spreadsheets?

A

Counts only the cells containing numbers within a range.

Example: =COUNT(A1:A10) counts only numerical entries.

53
Q

What does an error indicated by ### in a spreadsheet mean?

A

The column width is too narrow to display the data.

Adjusting the column width resolves this issue.

54
Q

What is the correct syntax for a function in spreadsheets?

A

Ensure functions begin with ‘=’ and use proper syntax, e.g., =AVERAGE(A1:A10).

Correct syntax is crucial for function execution.

55
Q

What does Format Painter do in word processing?

A

Copies formatting from one section to another for consistency.

It helps maintain uniformity across a document.

56
Q

What is the Find & Replace feature used for in word processing?

A

Quickly replace words or phrases throughout a document.

This ensures uniformity in text editing.

57
Q

How can you display an image to the left of text in a document?

A

Adjust Layout Options (Text Wrapping).

This allows for better text and image integration.

58
Q

What should you do to correct the Average function in a spreadsheet?

A

Ensure it is written as =AVERAGE(D3:D20).

Including an equal sign and proper function name is essential.

59
Q

What does a hyperlink in a spreadsheet do?

A

The text displays as a hyperlink linking to another location.

This feature allows for easy navigation to referenced data.

CAT (1 decks)

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