Module quiz: Introduction to the coding interview :Coding Interview Preparation (Meta iOS Developer Professional Certificate) Answers 2026

Question 1

What should be done when presented with a technical problem where the solution is not immediately obvious?

✅ Ask questions.
❌ Move the conversation along and try not to draw attention.
❌ Ask the interviewer how they would solve the problem.

Explanation:
Asking clarifying questions shows problem-solving skills and good communication.

Question 2

During a technical interview, is it better to rely on the work of others, or code everything yourself?

❌ Use code written by others.
✅ Use the data structures, but don’t use any other external implementation.
❌ Write as much code as you can to show off your skills.

Explanation:
Interviewers want to see your thinking, not copied solutions.

Question 3

Sock colors = [3,3,2,1,1,3,5,1,4,2]. How many pairs exist?

❌ 4
❌ 2
✅ 3

Explanation:
Pairs:

• Color 3 → one pair

• Color 1 → one pair

• Color 2 → one pair
  Total = 3 pairs

Question 4

It is best to remain silent when writing code during a technical interview.

❌ True
✅ False

Explanation:
Thinking aloud helps interviewers understand your approach.

Question 5

Should I ask questions in an interview?

❌ To run down the clock
❌ Only when it helps interviewer
✅ Yes. Ask questions for clarity or at an appropriate time.

Explanation:
Good questions show engagement and understanding.

Question 6

What is the STAR method?

✅ A structured approach to answering questions.
❌ A stellar answer
❌ A coding practice

Explanation:
STAR = Situation, Task, Action, Result

Question 7

What is meant by transfer rate in relation to a CPU?

✅ The rate at which memory is transferred into cache.
❌ The rate instructions are processed
❌ The rate terminal input is converted

Explanation:
Transfer rate focuses on data movement, not execution speed.

Question 8

When engaged with a coding interview what tests should you aim to include?

❌ Integration tests
❌ Functional tests
✅ Unit tests

Explanation:
Unit tests are fast, focused, and show correctness.

Question 9

Which memory location is closest to the CPU?

❌ Main memory
❌ Secondary memory
✅ Cache

Explanation:
Cache is fastest and closest to the CPU.

Question 10

When designing a solution it is best to:

❌ Tackle every problem as it arises
✅ Plan an outline, identify obstacles, explore solutions, and review continuously
❌ Do a quick sketch and implement everything immediately

Explanation:
Structured planning leads to cleaner and scalable solutions.

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