Data, Files, and Digital Information: How Data is Stored and Managed

Engineering

Knowledge check on storage technologies, data management, and digital information systems

10 XP
Reward
10
Questions
5–10 min
Time
Q1 Question 1 of 10

What happens at the physical level when you 'delete' a file on a traditional hard drive and empty the Recycle Bin?

Q2 Question 2 of 10

You need to permanently destroy sensitive data on an old hard drive before recycling it. Which method is most effective?

Q3 Question 3 of 10

What is a relational database, and what makes it 'relational'?

Q4 Question 4 of 10

What does it mean for data to be stored 'in the cloud'?

Q5 Question 5 of 10

What is 'data redundancy' in storage, and why is it valuable?

Q6 Question 6 of 10

An image saved as PNG vs JPEG will look the same on screen but have different file sizes. Why?

Q7 Question 7 of 10

A hospital needs to store millions of patient records securely for decades. Which concern is LEAST important for them?

Q8 Question 8 of 10

What problem does 'data deduplication' solve in large storage systems?

Q9 Question 9 of 10

When you share a photo via a messaging app and it arrives looking slightly worse quality, what likely happened?

Q10 Question 10 of 10

What is 'data integrity' and why does it matter?