Quick Answer
The answer is the Identity Provider (IdP). This component is essential because it authenticates users against Microsoft Active Directory and issues the SAML 2.0 assertions that enable single sign-on across multiple enterprise applications; the IdP acts as the trusted source of identity, validating credentials and generating signed SAML tokens that Service Providers accept without requiring separate logins. On the Cisco SCOR / CCNP Security Core 350-701 exam, this concept tests your understanding of SAML federation architecture, often appearing in scenario-based questions where you must distinguish the IdP from the Service Provider or the directory itself. A common trap is confusing Active Directory with the IdP—remember that AD is the user store, but the IdP is the engine that performs authentication and issues the SAML response. Memory tip: IdP = “I do the Password” (authentication), while SP = “Serves the app” (consumes the assertion).
This 350-701 practice question tests your understanding of security concepts. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
A security administrator is tasked with implementing a solution that provides single sign-on (SSO) for users accessing multiple enterprise applications. The solution must support SAML 2.0 and integrate with the existing Microsoft Active Directory. Which component is essential for this architecture?
Certificate Authority (CA)
Why wrong: A CA issues certificates but does not handle authentication directly.
RADIUS server
Why wrong: RADIUS is used for network access authentication, not for web SSO.
Identity Provider (IdP)
The IdP authenticates users and generates SAML assertions for SSO.
Service Provider (SP)
Why wrong: The SP relies on the IdP for authentication; it is not the central component.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Identity Provider (IdP)
Option C is correct because an Identity Provider (IdP) is the essential component that authenticates users against Microsoft Active Directory and issues SAML 2.0 assertions to enable single sign-on (SSO) across multiple enterprise applications. The IdP acts as the trusted source of identity, validating credentials and generating signed SAML tokens that Service Providers (SPs) accept without requiring separate logins.
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.
Certificate Authority (CA)
Why it's wrong here
A CA issues certificates but does not handle authentication directly.
RADIUS server
Why it's wrong here
RADIUS is used for network access authentication, not for web SSO.
Identity Provider (IdP)
Why this is correct
The IdP authenticates users and generates SAML assertions for SSO.
Related concept
Read the scenario before looking for a memorised answer.
Service Provider (SP)
Why it's wrong here
The SP relies on the IdP for authentication; it is not the central component.
Common exam traps
Cisco often tests the distinction between the IdP and SP roles in SAML, and the trap here is that candidates mistakenly choose 'Service Provider' thinking it is the main component for SSO, when in fact the IdP is the central authentication authority that enables SSO across multiple SPs.
Detailed technical explanation
In SAML 2.0 SSO, the IdP generates a digitally signed SAML response containing an assertion with the user's identity and attributes, which the SP validates using the IdP's public certificate. The IdP typically integrates with Active Directory via LDAP or Kerberos to authenticate users, and it manages session tokens (e.g., cookies) to maintain SSO across multiple SPs without re-prompting credentials. A real-world example is using Azure AD as the IdP to enable SSO for Salesforce, Office 365, and custom apps, where the IdP handles the SAML protocol flow and AD integration.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A junior network technician can log in to a core router but cannot reach the enable prompt or configuration mode. The AAA server is authenticating the login — but the authorisation policy only grants privilege level 1, not 15. Authentication (who you are) is working; authorisation (what you can do) is not.
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FAQ
Security Concepts — This question tests Security Concepts — Read the scenario before looking for a memorised answer..
The correct answer is: Identity Provider (IdP) — Option C is correct because an Identity Provider (IdP) is the essential component that authenticates users against Microsoft Active Directory and issues SAML 2.0 assertions to enable single sign-on (SSO) across multiple enterprise applications. The IdP acts as the trusted source of identity, validating credentials and generating signed SAML tokens that Service Providers (SPs) accept without requiring separate logins.
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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Last reviewed: Jun 25, 2026
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