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Question 141.

Which ClearPass feature can use DHCP fingerprint information to help identify an endpoint type?

1. Endpoint Profiling
   2. RADIUS Accounting
   3. Guest Sponsorship
   4. Enforcement Profile

Correct Answer: 1. Endpoint Profiling

Explanation:

Endpoint Profiling can use information such as DHCP fingerprints, MAC vendor data, HTTP characteristics, and SNMP information to infer the type of device connecting to the network. ClearPass can classify endpoints as laptops, phones, printers, cameras, and other categories. These classifications can then become part of role mapping or enforcement decisions. Profiling adds valuable device context, especially for endpoints that do not support strong 802.1X authentication. However, profiling is based on observed behavior and characteristics, so it should not replace certificate-based identity assurance where strong authentication is required.

Question 142.

Which ClearPass repository contains information about endpoints that have been observed on the network?

1. Authentication Source
   2. Endpoint Repository
   3. Enforcement Policy
   4. Guest Operator Repository

Correct Answer: 2. Endpoint Repository

Explanation:

The Endpoint Repository stores information about devices known to ClearPass, including MAC addresses, profiling classifications, known or unknown state, and custom attributes. ClearPass can reference this information during authentication and authorization processing. For example, a device classified and approved as a corporate printer could receive a different role from an unknown endpoint. The repository is especially useful for MAC Authentication and profiling-based access policies because it provides persistent device context beyond the details contained in a single RADIUS request.

Question 143.

Which ClearPass module provides posture assessment for endpoint health and compliance?

1. Guest
   2. Insight
   3. OnGuard
   4. AirGroup only

Correct Answer: 3. OnGuard

Explanation:

ClearPass OnGuard evaluates endpoint health against configured posture requirements. Depending on the deployment, it can examine antivirus status, firewall state, operating-system conditions, required applications, or other compliance indicators. The resulting posture status can be used in enforcement decisions. A healthy endpoint might receive normal access, while a noncompliant device could be placed into a restricted or remediation role. Guest is intended for visitor workflows, while Insight provides reporting and historical analytics rather than endpoint posture assessment.

Question 144.

Which action is normally appropriate when ClearPass OnGuard determines that an endpoint is noncompliant?

1. Grant unrestricted network access
   2. Delete the user account immediately
   3. Disable all RADIUS authentication
   4. Assign restricted remediation access**

Correct Answer: 4. Assign restricted remediation access

Explanation:

A remediation role allows a noncompliant endpoint to access only the resources needed to correct its security condition. These resources might include software update servers, antivirus services, help-desk systems, or patch repositories. After the endpoint becomes compliant, ClearPass can reassess the session and provide normal access. This approach balances security with usability because the endpoint is contained without being completely isolated from resources needed for remediation. Granting unrestricted access would undermine posture enforcement, while disabling authentication globally would unnecessarily affect other users.

Question 145.

Which ClearPass component allows an organization to provide temporary visitor accounts without creating permanent Active Directory users?

1. ClearPass Guest
   2. Insight
   3. OnGuard
   4. Endpoint Repository

Correct Answer: 1. ClearPass Guest

Explanation:

ClearPass Guest is designed for visitor onboarding and temporary account management. It supports workflows such as self-registration, sponsor approval, captive portals, temporary credentials, and automatic expiration. Organizations can therefore provide controlled network access to visitors without creating permanent enterprise directory accounts. Guest access can still be governed by ClearPass policy, allowing different visitor groups to receive different roles or restrictions. Insight and OnGuard serve reporting and posture functions, while the Endpoint Repository stores device information rather than guest credentials.

Question 146.

Which guest access workflow allows an employee to approve a visitor’s request before network access is granted?

1. Endpoint profiling
   2. Sponsor approval
   3. RADIUS accounting
   4. EAP-TLS enrollment

Correct Answer: 2. Sponsor approval

Explanation:

Sponsor approval allows an authorized employee or staff member to review and approve a visitor’s request for network access. This provides accountability because the guest account can be associated with an internal sponsor. ClearPass Guest can combine sponsor approval with account expiration, role assignment, and captive portal workflows. This is especially useful in environments where visitors should not receive immediate access without confirmation from someone inside the organization. Profiling and accounting provide device classification and session records rather than visitor approval.

Question 147.

Which protocol carries centralized Authentication, Authorization, and Accounting information between an access device and ClearPass?

1. LDAP
   2. SNMP
   3. RADIUS
   4. NTP

Correct Answer: 3. RADIUS

Explanation:

RADIUS is commonly used between network access devices and ClearPass to provide centralized Authentication, Authorization, and Accounting. A switch, wireless controller, or access point acts as a RADIUS client and sends requests to ClearPass. ClearPass evaluates the request and returns an appropriate response, potentially including authorization attributes. LDAP may be used by ClearPass to query an identity directory, but it is not normally the protocol between the access switch and ClearPass for network AAA. SNMP and NTP perform monitoring and time synchronization functions.

Question 148.

Which RADIUS message is sent when the network access device requests authentication for a client?

1. Access-Accept
   2. Access-Reject
   3. Accounting-Stop
   4. Access-Request**

Correct Answer: 4. Access-Request

Explanation:

A RADIUS Access-Request is sent by the network access device when it needs the RADIUS server to authenticate and authorize a client. The request contains relevant attributes such as identity information, access-device details, connection type, and authentication data. ClearPass processes the request through the matching service and applicable policies. Depending on the result, it can return an Access-Accept, Access-Reject, or another supported response. Understanding the RADIUS request-response flow is fundamental when reading Access Tracker records.

Question 149.

Which RADIUS response tells the network access device that ClearPass has approved the client session?

1. Access-Accept
   2. Access-Request
   3. Access-Reject
   4. Accounting-Request

Correct Answer: 1. Access-Accept

Explanation:

An Access-Accept indicates that ClearPass has approved the authentication and authorization request. The message may contain additional attributes that instruct the switch or wireless infrastructure how to handle the client session. These can include role, VLAN, or other policy-related values. If a client receives an Access-Accept but still gets incorrect network access, administrators should inspect the returned attributes and verify that the network access device is correctly configured to interpret them.

Question 150.

Which RADIUS response indicates that access has been denied?

1. Access-Challenge
   2. Access-Reject
   3. Accounting-Start
   4. CoA-Accept

Correct Answer: 2. Access-Reject

Explanation:

Access-Reject indicates that the RADIUS server denied the client’s authentication or authorization request. This can occur because of incorrect credentials, disabled accounts, certificate problems, failed policy conditions, or other restrictions. Administrators should use Access Tracker to determine the precise reason for the rejection rather than assuming the password is wrong. Access Tracker can reveal the matched service, authentication source, role-mapping result, and enforcement decision that led to the failure.

Question 151.

Which RADIUS feature can change the authorization state of a user after the original authentication has completed?

1. Accounting-Start
   2. Access-Request
   3. Change of Authorization
   4. DHCP Renewal

Correct Answer: 3. Change of Authorization

Explanation:

RADIUS Change of Authorization, or CoA, allows ClearPass to request changes to an already active user session. Depending on the access device, ClearPass can trigger reauthentication, disconnect the client, or apply a different authorization state. This is useful when posture changes, an administrator updates a policy, or a user should move between restricted and normal access. CoA provides dynamic control without requiring the user to manually disconnect and reconnect.

Question 152.

Which ClearPass troubleshooting tool provides the best detail about why a specific authentication request was accepted or rejected?

1. Insight
   2. Guest portal
   3. Endpoint Repository
   4. Access Tracker**

Correct Answer: 4. Access Tracker

Explanation:

Access Tracker is the primary troubleshooting tool for individual authentication transactions. It shows request attributes, the matched service, authentication results, role mapping, authorization information, enforcement decisions, and final response attributes. This detailed processing view makes it easier to determine why a request was accepted, rejected, or assigned an unexpected role. Insight provides broader historical reporting, while Guest and Endpoint Repository support different functions. Access Tracker should usually be one of the first places administrators check when investigating a specific session.

Question 153.

Which ClearPass feature is best suited for analyzing authentication trends over a longer period?

1. Insight
   2. Access Tracker only
   3. OnGuard
   4. Guest Sponsorship

Correct Answer: 1. Insight

Explanation:

ClearPass Insight provides historical reporting and analytics across authentication sessions, endpoints, users, and other access-related events. It is useful for identifying patterns, investigating past incidents, reviewing usage, and generating compliance or operational reports. Access Tracker is optimized for detailed analysis of individual transactions, whereas Insight provides a broader view over time. OnGuard and Guest provide posture and visitor functions rather than historical access analytics.

Question 154.

Which ClearPass policy maps contextual information to internal roles such as Employee or Contractor?

1. Enforcement Profile
   2. Role Mapping Policy
   3. Authentication Source
   4. Network Device Group

Correct Answer: 2. Role Mapping Policy

Explanation:

A Role Mapping Policy evaluates available attributes and assigns internal ClearPass roles. These attributes may include Active Directory groups, endpoint profile information, certificate fields, posture data, or connection context. Internal roles simplify later enforcement because policies can reference a meaningful role such as Employee or Contractor instead of repeatedly checking complex identity attributes. If the wrong internal role is assigned, administrators should verify both the available attributes and the order and logic of the Role Mapping rules.

Question 155.

Which policy uses internal roles and session attributes to decide what access should be granted?

1. Authentication Source
   2. Guest registration
   3. Enforcement Policy
   4. Endpoint Profiler

Correct Answer: 3. Enforcement Policy

Explanation:

The Enforcement Policy determines what access action should be applied based on roles and contextual session attributes. It can evaluate identity, device type, posture status, authentication method, location, or other factors and select the appropriate Enforcement Profile. For example, an employee on a compliant corporate laptop may receive normal access, while the same employee on an unknown device may receive a restricted role. The Enforcement Policy contains decision logic, while the selected profile contains actual response attributes.

Question 156.

Which object contains the final RADIUS attributes that ClearPass sends to the network access device?

1. Service
   2. Authorization Source
   3. Role Mapping Policy
   4. Enforcement Profile**

Correct Answer: 4. Enforcement Profile

Explanation:

The Enforcement Profile contains the actual authorization attributes returned to the network access device. Examples can include VLAN assignment, role names, session controls, and vendor-specific RADIUS attributes. The Enforcement Policy selects the appropriate profile based on evaluated conditions. If a client receives the wrong VLAN even though the correct policy appears to match, the administrator should inspect the Enforcement Profile itself and confirm that the switch or controller is configured to honor the returned values.

Question 157.

Which authentication method uses client and server certificates to provide strong mutual authentication?

1. EAP-TLS
   2. MAC Authentication
   3. PAP
   4. Captive portal login

Correct Answer: 1. EAP-TLS

Explanation:

EAP-TLS uses digital certificates to authenticate both the client and the authentication infrastructure. The client proves possession of a private key associated with its certificate, while also validating the server certificate. This provides strong protection against credential theft and impersonation compared with reusable-password methods. EAP-TLS requires a properly managed PKI, including certificate issuance, renewal, revocation, and trust configuration. It is especially appropriate for managed enterprise endpoints.

Question 158.

Which system is responsible for issuing and revoking the certificates used by EAP-TLS?

1. DNS
   2. Public Key Infrastructure
   3. DHCP
   4. SNMP

Correct Answer: 2. Public Key Infrastructure

Explanation:

A Public Key Infrastructure, or PKI, manages the certificate lifecycle required for EAP-TLS. It includes trusted Certificate Authorities and processes for issuing, validating, renewing, and revoking certificates. Both ClearPass and client endpoints must trust the appropriate certificate chain. Authentication can fail if certificates expire, are revoked, or chain to an untrusted authority. DNS, DHCP, and SNMP cannot provide the certificate trust functions required by EAP-TLS.

Question 159.

Which authentication method is typically used as a fallback for devices that cannot support 802.1X?

1. EAP-TLS only
   2. SAML
   3. MAC Authentication
   4. SSH

Correct Answer: 3. MAC Authentication

Explanation:

MAC Authentication is commonly used for devices that cannot run an 802.1X supplicant. Examples may include certain printers, cameras, phones, and IoT devices. The network access device submits the endpoint MAC address to ClearPass, which can evaluate it against known endpoint information and policy. Because MAC addresses can be spoofed, the method should be combined with profiling, segmentation, restricted access, and monitoring. It is useful as a practical fallback but does not provide the same assurance as certificate-based authentication.

Question 160.

A user authenticates successfully, but ClearPass assigns the wrong VLAN. Which areas should be checked first?

1. Wireless RF settings only
   2. NTP configuration only
   3. Guest portal design
   4. Role Mapping, Enforcement Policy, Enforcement Profile, and returned RADIUS attributes**

Correct Answer: 4. Role Mapping, Enforcement Policy, Enforcement Profile, and returned RADIUS attributes

Explanation:

If authentication succeeds but the assigned VLAN is incorrect, the problem is most likely in the authorization workflow rather than identity validation. Administrators should verify that the expected attributes produced the correct internal role, that the Enforcement Policy selected the intended action, and that the Enforcement Profile contains the proper VLAN-related RADIUS attributes. Access Tracker can show each step and the final response sent to the access device. The switch or controller should also be checked to confirm that it supports and properly applies dynamic VLAN assignment.