Debugging Your Software Engineering Know-How

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1. Câu hỏi 1

   A project is behind schedule. According to Brooks's law, what happens if you add more developers?

   • It finishes much sooner
   • It gets even later
   • It switches to microservices
   • It skips optimization

2. Câu hỏi 2

   Your test suite reaches 100% code coverage. What does that tell you?

   • Every line ran during a test
   • The code contains no bugs
   • All parts work together correctly
   • Code review is no longer needed

3. Câu hỏi 3

   A developer restructures messy code without changing what it does. What is this called?

   • Paying down bugs
   • Feature development
   • Refactoring
   • Premature optimization

4. Câu hỏi 4

   How are Git and GitHub related?

   • They are two names for one tool
   • Git only works for teams on GitHub
   • GitHub deploys Git code automatically
   • Git is a tool; GitHub hosts Git repositories

5. Câu hỏi 5

   What does it mean when an algorithm is O(n²)?

   • Its work grows with the square of the input size
   • It takes n² seconds to run
   • It should be optimized right away
   • It takes n² milliseconds per item

6. Câu hỏi 6

   A team ships a quick hack to meet a deadline, planning to clean it up later. What have they created?

   • A refactoring
   • Technical debt
   • A known bug
   • An agile sprint

7. Câu hỏi 7

   Which test checks a single function on its own, with its dependencies replaced by fakes?

   • An integration test
   • An end-to-end test
   • A unit test
   • A code review

8. Câu hỏi 8

   What does the Agile Manifesto say about documentation?

   • Teams should write no documentation
   • Planning and documents are banned
   • Working software is valued more than documentation
   • Every change must deploy straight away

9. Câu hỏi 9

   An app written in Java, which has garbage collection, slowly uses more memory. Could it be a memory leak?

   • No, garbage collection prevents all leaks
   • No, only C and C++ can leak memory
   • No, it just needs early optimization
   • Yes, if unused objects are still referenced

10. Câu hỏi 10

    A startup with three developers is building its first product. Which architecture do many experts recommend starting with?

    • Dozens of microservices
    • A microservice per developer
    • A well-structured monolith
    • A system for a team of 50