Choose a File Mode that Preserves the Original
Use read mode for inspection and a separate destination when the original must remain.
About 22 minutes, plus any extended practice
Supplied materials
- Paper and pencil; answers may also be spoken or typed.
- All cases, labels, numbers and rules are supplied on this page. No real account, private information or purchase is needed.
Learn the idea
File operations can read, overwrite or append under their stated mode. A workflow should choose a mode that matches its purpose and protect originals before a transformation. Our paper task describes Python-style modes without opening files. No learner’s actual records are needed.
Use read mode for inspection and a separate destination when the original must remain. Opening a destination for writing can replace existing content; do not treat it as harmless inspection.
Use this supplied case: Purpose: inspect original without changing it. Which stated plan fits the purpose? The task is to connect the given information to the computing idea. Write a short evidence trail so another learner can reproduce your choice. The simplified case describes the stated model, not every real system.
- Represent the supplied worked case with a labeled drawing, table or short trace.
- Use read mode for inspection and a separate destination when the original must remain.
- Explain why the worked answer fits and why one alternative does not.
- Try the new check and practice cases; revisit the stated rule if your evidence does not match.
See the method in action
Purpose: inspect original without changing it. Which stated plan fits the purpose? The supported answer is Read original. Use read mode for inspection and a separate destination when the original must remain. Opening a destination for writing can replace existing content; do not treat it as harmless inspection. The supplied facts, rather than an assumed real-world detail, determine this paper case. Compare the recorded action or value with the stated rule before choosing an answer.
Check your reasoning
Your answer is temporary and is not saved to an account. Download your current answer before leaving or reloading. Written work on paper or in another app stays in your own file.
Helpful tips
- Use read mode for inspection and a separate destination when the original must remain.
- Opening a destination for writing can replace existing content; do not treat it as harmless inspection.
See the answer and explanation
Write separate derived file
The supplied case states: Purpose: create trans formed copy while preserving source. Which stated plan fits the purpose? Under the stated distinction, this identifies Write separate derived file. File operations can read, overwrite or append under their stated mode. A workflow should choose a mode that matches its purpose and protect originals before a transformation. Our paper task describes Python-style modes without opening files. No learner’s actual records are needed. Use read mode for inspection and a separate destination when the original must remain.
Take it further
Source inspection must not change data. Expected: read original, write a distinct derived output, and validate before replacing any retained source.
Nothing here is saved to an account or sent to a teacher. The answer download includes your current choice and any checked feedback. It does not include choices from the separate More practice section. Download that section separately.
More practice: try new cases
Choose an answer for each problem. Explain your method on paper, then use the feedback to decide what to revisit.
Your choices are temporary. Feedback appears after you check all the answers.
Nothing here is saved to an account or sent to a teacher. Keep your own notes or download them before leaving. The score describes these questions; it does not certify subject mastery.
Check the subject sources
These LifeStarter passages, scenarios and exercises are authored for this Academy with AI assistance and review. External resources keep their publishers’ terms. A grade label suggests a starting level; it does not establish alignment with your school’s complete requirements.