Quick Answer
The correct answer is FIDO2 security key, as it is a native passwordless authentication method in Microsoft Entra ID that uses public-key cryptography to verify user identity without transmitting a password. Temporary Access Pass (TAP) is also a valid method, providing a time-limited passcode that enables users to register passwordless credentials like FIDO2 or Microsoft Authenticator, particularly useful for onboarding or recovery scenarios. On the Microsoft Azure Security Engineer Associate AZ-500 exam, this topic tests your understanding of the authentication methods policy and the distinction between primary methods (like FIDO2) and supporting methods (like TAP). A common trap is confusing TAP as a standalone sign-in method rather than a bootstrap mechanism for passwordless registration. Remember the mnemonic “FIDO First, TAP to Train” — FIDO2 is the direct passwordless method, while TAP is the temporary key to set it up.
This AZ-500 practice question tests your understanding of secure identity and access. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which TWO of the following are valid authentication methods in Microsoft Entra ID?
Temporary Access Pass
Temporary Access Pass is a time-limited password used for onboarding.
App registration
Why wrong: App registration is for registering applications.
FIDO2 security key
FIDO2 is a passwordless authentication method.
Managed identity
Why wrong: Managed identity is for Azure resources to authenticate, not a user authentication method.
Azure AD Connect
Why wrong: Azure AD Connect is a sync tool, not an authentication method.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Temporary Access Pass
Temporary Access Pass (TAP) is a valid authentication method in Microsoft Entra ID that allows users to register passwordless methods (like FIDO2 or Microsoft Authenticator) by providing a time-limited passcode. It is designed for scenarios where users have forgotten their credentials or need to onboard new devices without a password. TAP is configured via the Authentication methods policy in Entra ID and supports both one-time use and configurable lifetimes.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Temporary Access Pass
Why this is correct
Temporary Access Pass is a time-limited password used for onboarding.
Related concept
Read the scenario before looking for a memorised answer.
App registration
Why it's wrong here
App registration is for registering applications.
FIDO2 security key
Why this is correct
FIDO2 is a passwordless authentication method.
Related concept
Read the scenario before looking for a memorised answer.
Managed identity
Why it's wrong here
Managed identity is for Azure resources to authenticate, not a user authentication method.
Azure AD Connect
Why it's wrong here
Azure AD Connect is a sync tool, not an authentication method.
Common exam traps
The trap here is that candidates confuse identity infrastructure tools (like Azure AD Connect) or workload identities (like Managed identities) with user authentication methods, leading them to select options that are related to identity but not valid for user sign-in.
Detailed technical explanation
FIDO2 security keys use the WebAuthn standard (W3C) and CTAP (Client to Authenticator Protocol) to provide phishing-resistant, passwordless authentication. Under the hood, the private key never leaves the hardware token, and the authentication relies on a challenge-response mechanism using public-key cryptography (e.g., ECDSA). In a real-world scenario, organizations deploy FIDO2 keys for high-security users (e.g., executives or IT admins) to eliminate password-related risks like credential theft or replay attacks.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
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Secure identity and access — study guide chapter
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FAQ
Secure identity and access — This question tests Secure identity and access — Read the scenario before looking for a memorised answer..
The correct answer is: Temporary Access Pass — Temporary Access Pass (TAP) is a valid authentication method in Microsoft Entra ID that allows users to register passwordless methods (like FIDO2 or Microsoft Authenticator) by providing a time-limited passcode. It is designed for scenarios where users have forgotten their credentials or need to onboard new devices without a password. TAP is configured via the Authentication methods policy in Entra ID and supports both one-time use and configurable lifetimes.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Same concept, more angles
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Which TWO of the following are valid methods to authenticate users in Microsoft Entra ID?
easyWhy B: Certificate-based authentication (CBA) is a valid method in Microsoft Entra ID that allows users to authenticate using X.509 certificates issued by a trusted public key infrastructure (PKI). This method is commonly used for smart card or device-based authentication, and it supports both user and device scenarios without requiring passwords.
Variation 2. Which TWO of the following are authentication methods supported by Microsoft Entra ID?
easyWhy A: Certificate-based authentication (CBA) is a supported authentication method in Microsoft Entra ID that allows users to authenticate using X.509 certificates issued by a trusted Certificate Authority (CA). This method is commonly used for passwordless authentication, especially in hybrid environments where smart cards or device certificates are deployed. Entra ID validates the certificate chain and maps the certificate to a user object, enabling secure sign-in without a password.
Last reviewed: Jun 25, 2026
This AZ-500 practice question is part of Courseiva's free Microsoft 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 AZ-500 exam.
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