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General Security ConceptseasyMultiple ChoiceObjective-mapped

SY0-701 General Security Concepts Practice Question

After an employee successfully signs in to a file-sharing portal, the portal checks whether the employee can upload files to a specific project folder. Which AAA concept is being used?

⚠ Common exam trap

A common mix-up: candidates confuse the initial login (authentication) with the subsequent permission check (authorization), often selecting 'Authentication' because they see 'signs in' and assume the entire process is about identity verification.

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

Authorization, because the system is deciding what the signed-in user is allowed to do.

After the user successfully signs in (authentication), the portal checks permissions to determine if they can upload files to a specific project folder. This is the definition of authorization: verifying what an authenticated user is allowed to do. The system is enforcing access control based on the user's identity and the folder's permissions.

Answer analysis

Option-by-option breakdown

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

  • Authentication, because the user proved their identity with credentials.

    Why it's wrong here

    Authentication is the initial step of proving identity via credentials like a password or smart card, but the scenario specifically occurs after the employee has already signed in. At that point, the portal has established the user's identity, so the subsequent check of whether they may upload files to a particular folder is a permission decision, not another identity verification. Thus, while authentication is necessary, it is not the process being described in the post-sign-in access control.

  • Authorization, because the system is deciding what the signed-in user is allowed to do.

    Why this is correct

    Authorization is the process of determining permissions after identity has been confirmed. In this case, the portal is checking whether the authenticated user may upload files to a particular folder. That is a classic authorization decision because it controls access to a resource based on assigned rights, roles, or group membership.

  • Accounting, because the portal is recording the folder permissions for later review.

    Why it's wrong here

    Accounting (auditing) involves recording user activities after the fact for review—such as logging which user uploaded a file, the timestamp, and the folder accessed—to enable security monitoring and compliance. The scenario, however, describes the system actively deciding whether to allow or deny the upload based on the user's assigned rights or group membership. Permission enforcement is a real-time authorization decision, not the passive logging of events that accounting entails.

  • Nonrepudiation, because the portal proves the user cannot deny uploading a file.

    Why it's wrong here

    Nonrepudiation ensures that a user cannot deny having performed an action, typically through cryptographic mechanisms like digital signatures or robust audit logs that bind an actor to a specific event. It does not, by itself, determine whether the user has the right to upload a file; that access-control decision is made during authorization. In this case, the portal's permission check is a precondition to the action, not a proof of the action's occurrence, so nonrepudiation is irrelevant to the described process.

Quick reference

AAA Protocol Comparison

ProtocolPort(s)EncryptionTransportPrimary Use
RADIUS1812 / 1813Password onlyUDPNetwork access control
TACACS+49Full packetTCPDevice administration
Diameter3868Full sessionTCP / SCTPCarrier / mobile networks
802.1XEAP-basedLayer 2Port-based access control

TACACS+ encrypts the entire packet; RADIUS only encrypts the password field — a key exam distinction.

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Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This SY0-701 practice question is part of Courseiva's free CompTIA 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 SY0-701 exam.