Module 11 Knowledge Check
5 questions. Pass mark 4 out of 5. Answer every question before checking the answer key below, then retry after reading the feedback.
1. Interactivity is justified when…
- A. the tool supports it
- B. readers' second questions differ
- C. there are many series
- D. the audience is technical
2. A hover that shows the x and y values…
- A. is the useful default
- B. is a delay with no payload
- C. improves accessibility
- D. replaces axis labels
3. The default filter state matters because…
- A. it is easiest to change
- B. most readers never touch a control
- C. it affects load time
- D. it sets the colours
4. An interactive chart exported with the library loaded from a CDN…
- A. always works
- B. renders blank behind a strict firewall or offline
- C. is larger than an inlined export
- D. cannot be emailed
5. A dashboard with fourteen filters and no default view…
- A. is maximally flexible
- B. hands the analysis back to the reader
- C. suits expert users
- D. is the recommended pattern
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Answer Key and Explanations
Check these only after attempting every question.
1. B - readers' second questions differ
When everyone wants the same follow-up, answer it in the chart.
2. B - is a delay with no payload
Put something in the hover the chart cannot show, such as a count behind each point.
3. B - most readers never touch a control
The default is the chart for practical purposes, so it must carry the main finding.
4. B - renders blank behind a strict firewall or offline
Inline the library for anything emailed or archived, and test with the network disabled.
5. B - hands the analysis back to the reader
An interactive chart with no default finding is a data set with a user interface.
Practical Check
Apply this module to your own work: complete the module activity for *Plotly for Interactive Exploration*, then write one sentence naming what your result shows and one naming what it does not.
Strong Answer Pattern
A strong answer names the task, the evidence used, the check performed, and the remaining limitation. It avoids "proved", "guaranteed", or "always" unless the evidence genuinely supports it.