Ctech Unit 2 Review Information Management Quiz

What is an advantage of solid state devices?

• They are more expensive

• They are less likely to be damaged if dropped

• They have moving parts

• They are slower than magnetic discs

Answer explanation

Solid state devices have no moving parts, making them more durable and less likely to be damaged if dropped compared to traditional devices. This resilience is a key advantage over other types of storage.

What is meant by the term 'mutability'?

• The ability to change or be changed.

• The speed of data transfer.

• The cost of maintaining data.

• The security of data storage.

Answer explanation

The term 'mutability' refers to the ability to change or be changed. This is crucial in programming and data management, as it determines whether an object or data can be modified after its creation.

What is Braille text?

• A form of visual writing

• A tactile form of writing using dots

• A type of audio information

• A digital form of text

Answer explanation

Braille text is a tactile writing system that uses raised dots to represent letters and characters, allowing visually impaired individuals to read by touch. Thus, the correct answer is 'A tactile form of writing using dots'.

How can numerical data be analyzed?

• By using tactile images

• By using a database or spreadsheet

• By using audio recordings

• By using subtitles

Answer explanation

Numerical data can be effectively analyzed using a database or spreadsheet, as these tools allow for organization, calculation, and visualization of data. Other options like tactile images, audio recordings, and subtitles are not suitable for numerical analysis.

What is a common use of charts and graphs?

• To identify trends or comparisons

• To create tactile images

• To translate audio information

• To replicate Braille text

Answer explanation

Charts and graphs are commonly used to identify trends or comparisons, as they visually represent data, making it easier to analyze patterns and differences.

Which type of information includes addresses, phone numbers, nationality, gender, and marital status?

• Public

• Private

• Classified

• Business

Answer explanation

The information listed, such as addresses, phone numbers, nationality, gender, and marital status, is considered private as it pertains to personal details that individuals may not want to share publicly.

What can poor quality information lead to?

• Successful projects

• Accurate decisions

• Bad decisions

• Increased reputation

Answer explanation

Poor quality information can lead to misunderstandings and misinterpretations, resulting in bad decisions. Accurate and reliable information is crucial for making informed choices, while poor quality undermines that process.

What does the manipulation and processing stage involve?

• Deleting unnecessary data

• Processing information for analysis

• Encrypting data

• Transmitting data

Answer explanation

The manipulation and processing stage primarily involves processing information for analysis, which includes organizing and transforming data to extract meaningful insights.

Decisions based on poor information may be unreliable because they may lead to incorrect conclusions.

• They are always correct

• They may lead to incorrect conclusions

• They are based on complete data

• They are always reliable

Answer explanation

Decisions based on poor information are unreliable because they may lead to incorrect conclusions. This highlights the importance of accurate data in decision-making, making 'They may lead to incorrect conclusions' the correct choice.

What is the purpose of the "Pairs Activity" mentioned in the document?

• To create a presentation on global warming

• To create a presentation on an information management system

• To write an essay on data processing

• To draw a chart on data trends

Answer explanation

The "Pairs Activity" is designed to create a presentation on an information management system, focusing on collaboration and understanding of the system's components and functionalities.