The answer is that federated identity characteristics include providing single sign-on (SSO) across multiple organizations. This is correct because federated identity management systems use standard protocols like SAML or OpenID Connect to establish trust relationships between an identity provider and separate service providers, enabling seamless authentication across different security domains without requiring a shared directory or a single identity provider. On the CISSP exam, this concept tests your understanding of how cross-domain trust is established and maintained, often appearing in questions about identity and access management (IAM) that distinguish federation from simple SSO within a single organization. A common trap is confusing federation with centralized SSO—remember that federation always involves multiple autonomous organizations, not just multiple systems under one authority. Memory tip: think “Federation = Foreign partners, SSO = Single sign-on across borders.”
CISSP Identity and Access Management Practice Question
This CISSP practice question tests your understanding of identity and access management. 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.
Which THREE of the following are characteristics of a federated identity management system?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
It relies on standard protocols such as SAML or OpenID Connect
Option A is correct because federated identity management systems rely on standard protocols like SAML (Security Assertion Markup Language) or OpenID Connect to exchange authentication and authorization data between identity providers (IdPs) and service providers (SPs). These protocols enable trust relationships across different security domains without requiring shared directories or a single IdP.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
It relies on standard protocols such as SAML or OpenID Connect
Why this is correct
Essential for interoperability.
Related concept
Read the scenario before looking for a memorised answer.
✗
It operates with a single identity provider for all organizations
Why it's wrong here
Multiple IdPs can be involved.
✗
It requires all participating organizations to use the same user directory
Why it's wrong here
Federation works across different directories.
✓
It enables identity information to be shared across different security domains
Why this is correct
Core purpose of federation.
Related concept
Read the scenario before looking for a memorised answer.
✓
It provides single sign-on (SSO) across multiple organizations
Why this is correct
Key benefit of federation.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse federation with centralized SSO, assuming a single IdP or shared directory is required, when in fact federation decouples identity providers and directories across organizational boundaries.
Detailed technical explanation
How to think about this question
Under the hood, SAML uses XML-based assertions signed with X.509 certificates to convey identity attributes, while OpenID Connect uses JSON Web Tokens (JWTs) over OAuth 2.0 flows. A subtle behavior is that federation can be initiated via SP-Initiated SSO (where the service provider redirects to the IdP) or IdP-Initiated SSO (where the IdP pushes an assertion to the SP), each with different security implications for session management and logout.
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.
TExam Day Tips
→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.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A security analyst at a medium-sized enterprise encounters this scenario during an investigation or architecture review. The correct answer reflects best practice for the specific threat or control described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Security exam questions test whether you can match controls to threats in context — not just recall definitions.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this CISSP question in full detail.
Identity and Access Management — This question tests Identity and Access Management — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: It relies on standard protocols such as SAML or OpenID Connect — Option A is correct because federated identity management systems rely on standard protocols like SAML (Security Assertion Markup Language) or OpenID Connect to exchange authentication and authorization data between identity providers (IdPs) and service providers (SPs). These protocols enable trust relationships across different security domains without requiring shared directories or a single IdP.
What should I do if I get this CISSP question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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