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200-901 Practice Question: Which HTTP method is considered both safe and…

Which HTTP method is considered both safe and idempotent?

⚠ Common exam trap

Cisco often tests the distinction between 'safe' and 'idempotent' as separate properties, trapping candidates who assume that idempotent methods like PUT or DELETE are also safe, or that PATCH is idempotent because it modifies a resource.

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

GET

GET is both safe and idempotent according to HTTP semantics (RFC 7231). Safe means it must not cause side effects on the server, and idempotent means multiple identical requests produce the same result as a single request. GET is designed solely for retrieval of a resource, so it satisfies both properties.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • ✗

    POST

    Why it's wrong here

    Incorrect: POST is neither safe nor idempotent.

  • ✗

    PUT

    Why it's wrong here

    Incorrect: PUT is idempotent but not safe.

  • ✗

    PATCH

    Why it's wrong here

    Incorrect: PATCH may not be idempotent.

  • ✓

    GET

    Why this is correct

    Correct: GET is safe and idempotent.

  • ✗

    DELETE

    Why it's wrong here

    Incorrect: DELETE is idempotent but not safe.

About these practice questions

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JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This 200-901 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 200-901 exam.