Question 1easymultiple choice
Full question →easymultiple choiceObjective-mapped
Your company uses an OIDC identity provider to let users assume an IAM role without long-term AWS credentials. In the IAM role trust policy, which STS action must be allowed to support this type of federation?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Best answer
sts:AssumeRoleWithWebIdentity
OIDC/web identity federation uses sts:AssumeRoleWithWebIdentity in the trust policy.
B
Distractor review
sts:AssumeRole
sts:AssumeRole is typically for trusted AWS principals, not OIDC web identity tokens.
C
Distractor review
sts:GetCallerIdentity
GetCallerIdentity is an API to retrieve identity information and is not used to assume roles.
D
Distractor review
sts:TagSession
TagSession can be used with AssumeRole flows, but it is not the core action required to trust web identity.
Common exam trap
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Technical deep dive
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
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Question 2
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Question 3
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Question 4
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Question 5
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Question 6
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FAQ
Questions learners often ask
What does this SAA-C03 question test?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: sts:AssumeRoleWithWebIdentity — OIDC (web identity) federation relies on sts:AssumeRoleWithWebIdentity in the role trust policy. This allows the principal represented by a web identity token to call STS and obtain temporary role credentials. In contrast, sts:AssumeRole is used when the caller is already an AWS principal. GetCallerIdentity does not perform role assumption, and TagSession is only a supplemental mechanism related to session tagging rather than the primary assume-role action. sts:AssumeRole is not the correct action for web identity tokens; it’s for assuming roles from AWS identities. sts:GetCallerIdentity is not an assumption operation. sts:TagSession by itself does not grant web identity-based access; it depends on an existing assume-role permission and does not replace sts:AssumeRoleWithWebIdentity.
What should I do if I get this SAA-C03 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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